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In an ever-evolving digital landscape, cybersecurity has become the cornerstone of organizational success. With the proliferation of sophisticated cyber threats, businesses must adopt a multi-layered… Read more on Cisco Blogs
For years, analysts, security specialists, and security architects alike have been encouraging organizations to become DMARC compliant. This involves deploying email authentication to ensure their… Read more on Cisco Blogs
There has been an exponential increase in breaches within enterprises despite the carefully constructed and controlled perimeters that exist around applications and data. Once an attacker can access… Read more on Cisco Blogs
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Join the guided tour outside the Security Operations Center, where we’ll discuss real time network traffic of the RSA Conference, as seen in the NetWitness platform. Engineers will be using Cisco S… Read more on Cisco Blogs
On Sunday, February 11, over 160 million viewers from around the globe watched Super Bowl LVIII, making it one of the most viewed annual sporting events. It is also a good bet that a record number of… Read more on Cisco Blogs
Cisco is honored to be this year’s winner of the Best Next Generation Firewall Award in the SE Labs 2023 Annual Report. This industry recognition validates Cisco’s continuous push towards harmonizing network, workload, and application security across hybrid and multicloud environments. I’m incredibly proud of the Cisco Secure Firewall team and am thankful for our amazing customers who continue to trust Cisco and develop their network security around our capabilities.
SE Labs, a cybersecurity testing and evaluation firm, provides impartial and independent assessments of various cybersecurity products and solutions. In their 2023 Annual Report, SE Labs states:
“Our Annual Security Awards recognizes security vendors that notonly do well in our tests, but perform well in the real world withreal customers. These awards are the only in the industry thatrecognize strong lab work combined with practical success.”
SE Labs performs tests on behalf of customers seeking independent proof-of-value assistance, as well as security vendors. At Cisco, we use third-party evaluations from multiple sources, including SE Labs, to augment our internal testing and to drive product improvement.
Winners were determined after months of in-depth testing, based on a combination of continual public testing, private assessments and feedback from corporate clients who use SE Labs to help choose security products and services. The award further validates that our customers can expect superior threat protection and performance with Cisco Secure Firewall.
SE Labs’ reports use the MITRE ATT&CK framework, employing both common “commodity” malware samples and sophisticated, targeted attacks. Their network security testing uses full attack chains to assess the detection and protection abilities of network devices and combinations of network and endpoint solutions. SE Labs publishes its testing methodologies and is BS EN ISO 9001: 2015 certified for The Provision of IT Security Product Testing.
As a worldwide leader in networking and security, Cisco is better positioned than any other security vendor to incorporate effective firewall controls into our customers’ infrastructure — anywhere data and applications reside. We offer a comprehensive threat defense with industry-leading Snort 3 IPS to protect users, applications, and data from continuously evolving threats. Our solutions also leverage machine learning and advanced threat intelligence from Cisco Talos, one of the world’s largest commercial threat intelligence teams.
In the constantly evolving world of cybersecurity, it is important to have access to the latest and most advanced technologies to stay ahead of threats. Whether you are an enterprise, government, healthcare, or a service provider organization, Cisco Secure Firewall provides top-ranked security.
When you invest in Cisco Secure Firewall, you are investing in award-winning threat defense with capabilities that are built for the real world. Learn more about SE Labs 2023 Annual Report, Cisco Secure Firewall and how you can refresh your firewall.
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Imagine this: Your CEO sends you an email asking for your help transferring $5,000 to a new vendor for an urgent project. You make the transfer, only to find out later that the email was actually from an imposter, and that money is now in the hands of cybercriminals. Oops, right? crickets
Business Email Compromise (BEC) is a type of cybercrime that involves compromising or imitating legitimate business email accounts to carry out fraudulent transactions or steal sensitive information. The goal of a BEC attack is typically to trick the victim into transferring money, clicking on a malicious link, or disclosing sensitive information such as login credentials. BEC attacks can have a devastating impact on organizations of all sizes and in all industries, making it essential for businesses to be aware of the threat, understand the business risk, and take the necessary steps to protect themselves.
According to the latest FBI IC3 report, BEC is “one of the most financially damaging online crimes” and in 2021 was accountable for $2.4 Billion in adjusted losses for businesses and consumers.
One of the most common types of BEC attacks is called impersonating or email spoofing. By pretending to be a trusted colleague or business partner to gain the victim’s trust, the attacker uses social engineering techniques to trick the victim into clicking on a link or attachment in an email that contains malware, takes the victim to a malicious website, and has them transfer funds or change payment information.
BEC attacks can be very sophisticated and are difficult to detect. Many times, what the end-user sees on their email client does not represent the true email address of that sender, or it shows one that has been spoofed.
Typically, the attacker tries to impersonate someone in the organization with enough authority to not be questioned about what he/she is asking to be done.
As with everything in security, to be able to succeed in stopping BEC attacks, additional security layers & techniques should be implemented. There are several options to mitigate or reduce the number of successful BEC attacks. Creating a list of the people who will be likely to be impersonated will provide the best results. Usually, with names from the CxO level, this is known as a High Impact Personnel list. It will be used along with other security analysis engines to make sure any impersonated/spoof emails, along with other threats, get stopped and will not reach the end user.
The Cisco Secure Email Threat Defense solution leverages hundreds of detection engines that utilize state-of-the-art artificial intelligence/machine learning and natural language processing to convict messages from the most creative attackers! On top of this, our customers can define their High Impact Personnel list, and together with the other detection engines, will be able to not only block malicious messages but also understand the reasons and categories of why a message is being convicted as malicious.
In summary, Business Email Compromise (BEC) is a serious threat to organizations of all sizes and in all industries. To protect against BEC attacks, businesses should implement multiple techniques including identifying their High Impact Personnel for their organization, educating employees about the threat, and relying on reporting to understand who is being targeted most frequently so their security policies can be adjusted.
See how Secure Email Threat Defense identifies specific business risk factors to protect your organization.
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Attackers specifically craft business email compromise (BEC) and phishing emails using a combination of malicious techniques, expertly selected from an ever-evolving bag of tricks. They’ll use these techniques to impersonate a person or business that’s well-known to the targeted recipient and hide their true intentions, while attempting to avoid detection by security controls.
As a result of the requisite expertise needed to combat these complex attacks, email security has traditionally been siloed away in disparate teams and security controls. Practitioners are buried under an ever-growing pile of RFCs, requiring extensive domain-specific knowledge, unending vigilance, and meticulous manual interventions, such as tweaking trust levels and cultivating allow/block lists with IPs, domains, senders, and vendors.
Cisco Secure Email Threat Defense is leading the industry forward with a major shift, elevating email security into a new era; where administration will consist of merely associating specific business risks with the appropriate due diligence response required to remediate against them.
Email Threat Defense has introduced a new Threat Profile that provides the customer with deep insights into the specific business risks of individual email threats and the confidence to act quickly. This new visualization is powered by a new patent-pending threat detection engine. This engine leverages intelligence distilled from Talos global-scale threat research across a massive volume of email traffic into machine learning, behavioral modeling, and natural language understanding.
The detection engine granularly identifies specific underlying threat techniques utilized in the message by the attacker. The identified techniques provide the full context of the threat message as the supporting foundation for the engine to determine threat categorization and the specific risk to the business. These malicious Techniques, together with the threat category and specific business risk, are used to populate the Threat Profile.
Each message’s Threat Profile is identified in real-time, automatically remediated per policy, and surfaced directly to the operator in the message detail views, providing deep contextual insights into the attacker’s intent and the associated risks to the business. As part of a larger Extended Detection and Response (XDR) strategy, the actionable intelligence in Email Threat Defense is integrated with the wider enterprise orchestration of security controls via SecureX, easing the operational burden by decreasing your mean time to remediation (MTTR).
Email Threat Defense delivers a distinct understanding of malicious messages, the most vulnerable targets within the organization, and the most effective means of protecting them from phishing, scams, and BEC attacks. With a clean design and core focus on simplifying administration, Email Threat Defense deploys in minutes to strengthen protection of your existing Microsoft 365 Exchange Online platform against the most advanced email threats.
For more information, visit the Cisco Secure Email product pages, read the Email Threat Defense data sheet, and view the demo video below.
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Nowadays, “cybersecurity” is the buzzword du jour, infiltrating every organization, invited or not. Furthermore, this is the case around the world, where an increasing proportion of all services now have an online presence, prompting businesses to reconsider the security of their systems. This, however, is not news to Cisco, as we anticipated it and were prepared to serve and assist clients worldwide.
Secure Cloud Analytics, part of the Cisco Threat, Detection, and Response (TD&R) portfolio, is an industry-leading tool for tackling core Network Detection and Response (NDR) use cases. These workflows focus primarily on threat detection and how security teams may recognize the most critical issues around hunting and forensic investigations to improve their mean-time-to-respond.
Over the last year, the product team worked tirelessly to strengthen the NDR offering. New telemetry sources, more advanced detections, and observations supplement the context of essential infrastructure aspects as well as usability and interoperability improvements. Additionally, the long-awaited solution Cisco Telemetry Broker is now available, providing a richer SecOps experience across the product.
As part of our innovation story on alerting capabilities, Secure Cloud Analytics now features new detections tied to the MITRE ATT&CK framework such as Worm Propagation, Suspicious User Agent, and Azure OAuth Bypass.
Additionally, various new roles and observations were added to the Secure Cloud Analytics to improve and change user alerts, that are foundational pieces of our detections. Alerts now include a direct link to AWS’ assets and their VPC, as well as direct access to Azure Security Groups, enabling further investigation capabilities through simplified workflows. In addition, the Public Cloud Providers are now included in coverage reports that provide a gap analysis to determine which accounts are covered. Alert Details offers new device information, such as host names, subnets, and role metrics that emphasize detection techniques. To better configure alerts, we are adding telemetry to gain contextual reference on their priority. Furthermore, the ingest process has grown more robust due to data from the Talos intelligence feed and ISE.
The highly anticipated SecureX integration is now available in a single click, with no API credentials required and smooth interaction between the two platforms. Most importantly, Secure Cloud Analytics alerts may now be configured to automatically publish as incidents to the SecureX Incident Manager. The Talos Intelligence Watchlist Hits Alert is on by default due to its prominence among the many alert types.
Among other enhancements to graphs and visualizations, the Encrypted Traffic widget allows for an hourly breakdown of data. Simultaneously, the Device Report contains traffic data for a specific timestamp, which may be downloaded as a CSV. Furthermore, the Event Viewer now displays bi-directional session traffic to provide even more context to Secure Cloud Analytics flows, as well as additional columns to help with telemetry log comprehension: Cloud Account, Cloud Region, Cloud VPC, Sensor and Exporter.
On-premises sensors now provide additional telemetry on the overview page and a dedicated page where users can look further into the telemetry flowing through them in Sensor Health. To optimize the Secure Cloud Analytics deployment and improve the user experience, sensors may now be deleted from the interface.
Regarding telemetry, Cisco Telemetry Broker can now serve as a sensor in Secure Cloud Analytics, so users can identify and respond to threats faster with additional context sent to Secure Cloud Analytics. In addition, there will soon be support for other telemetry types besides IPFIX and NetFlow.
As we can see from the vast number of new additions to Secure Cloud Analytics, the product team has been working hard to understand the latest market trends, listen to the customers’ requests, and build one of the finest SaaS products in the NDR industry segment. The efforts strongly underline how Secure Cloud Analytics can solve some of the most important challenges in the NDR space around visibility, fidelity of alerts and deployment complexity by providing a cloud hosted platform that can offer insights on-premise and on cloud environments simultaneously from the same dashboard. Learn more about new features that allow Secure Cloud Analytics to detect, analyze, and respond to the most critical dangers to their company much more quickly.
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Watch ThreatWise TV: Explorations in the spam folder
The spam folder: that dark and disregarded corner of every email account, full of too-good-to-be-true offers, unexpected shipments, and supposedly free giveaways.
You’re right to ignore this folder; few good things come from exploring it. But every once in a while one of these misleading, and sometimes malicious, emails manages to evade the filters that normally siphon them off, landing them in your inbox instead.
Fortunately, it’s easy enough to spot these emails if you know what to look for. We’ve investigated this folder once before, showcasing a variety of scams. With the holiday season in full swing, we thought this would be a good time to revisit how scammers are trying to trick unsuspecting users.
The holiday season is traditionally a time when this type of activity increases, and this year is no different. According to research published by credit reporting agency TransUnion, the average daily number of suspected digital fraud attempts was up 82 percent globally between Thanksgiving and Cyber Monday (Nov 24–Nov 28) compared to the rest of the year (Jan 1–Nov 23) and 127 percent higher for transactions originating in the US.
This level of activity makes it all the more important to be aware of these scams. With that in mind, let’s dive into the spam folder to get a picture of the types of campaigns currently circulating.
While much of the spam circulating is innocuous, many emails are phishing attempts, and some are indeed malicious. To explore these scams, we used a dedicated computer, segmented from the rest of the network, and leveraged Cisco Secure Malware Analytics to safely open the emails before clicking on links or opening attachments. The point being, we do not recommend doing this at home.
By far, the largest category of spam we saw were surveys scams. According to these emails, if you fill out a simple survey you’ll receive “exclusive offers” such as gift cards, smartphones, smart watches, power drills, or even pots and pans.
There are even some campaigns that specifically target the holiday shopping season.
Clicking the links in these emails takes the recipient to sites where they are asked to fill out a survey.
These pages often include fake testimonials that say how easy the survey is and what they did with their free gift.
The surveys are straightforward, comprising 10-20 simple questions that cover demographic information and shopping habits.
After the survey is completed, these sites offer the choice of a handful of rewards. All the recipient must do is pay for shipping. They are then brought to a page where they can fill out shipping and payment information, and the reward is supposedly shipped.
However, the attempts to make payment often appear to fail, or the recipient is informed that the prize is no longer available.
An unsuspecting user may simply give up at this point, disappointed that they won’t be getting their free gift. What they may not be aware of, is that they have just given their credit card details away in a phishing scam.
In their 2021 Internet Crime Report, the Internet Crime Complaint Center (IC3) said that Non-Payment / Non-Delivery scams such as these led to more than $337 million in losses, up from $265 million in 2020. Credit card fraud amounted to $172 million in 2021 and has been climbing continuously at a conservative rate of 15-20 percent since 2019.
According to Cisco Umbrella, many of the sites asking for credit card details are known phishing sites, or worse, host malware.
Another topic that we covered the last time we explored these types of scams was package delivery spam. These continue to circulate today. There are a variety of shipping companies impersonated in these campaigns, and some generic ones as well.
Many of these campaigns claim that a package could not be delivered. If the recipient clicks on a link in an email, they’re brought to a web page that explains that there are outstanding delivery fees that need to be paid.
The recipient is further enticed by suggestions that the package contains a big-ticket item, such as an iPhone or iPad Pro. All the recipient is required to do is enter their credit card details to cover the shipping.
While no outright malicious activity was detected while examining these emails in Secure Malware Analytics, several suspicious behaviors were flagged. Chances are the bad actors behind these campaigns are phishing for credit card details.
Sometimes the simplest approaches can work just as well as the flashiest. This certainly holds true with spam campaigns, given the prominence of plain-text messages.
The topics covered in such emails run the gamut, including medical cures, 419 scams, romance and dating, pharmaceuticals, weight loss, and many of the scam types we’ve already covered. Many of these link to phishing sites, though some attempt to establish a dialog with the recipient, tricking them into sending the scammers money.
The IC3 report says that victims of confidence fraud and romance scams lost $956 million collectively, which is up from $600 million in 2020. Healthcare fraud, such as the miracle pills and prescriptions scams, resulted in $7 million in losses in 2021, but nearly $30 million in 2020. While these types of scams seem generic and easily spotted, they still work, and so it’s important to be aware and avoid them.
Many emails hitting the spam box attempt to trick users of various services into believing that there is a problem with their account. The problems cover all sorts of services, including streaming platforms, email providers, antivirus subscriptions, and even public records.
If the links are clicked, the recipient is presented with landing pages that mimic the respective services. Any details that are entered will likely be phished, leading to account takeover and/or access to personal records. However, some domains encountered in these cases may do more than just steal information, they could deliver malware too.
Another frequently encountered scam surrounds billing. Many of these appear to be unexpected bills for services the recipient never purchased.
These emails include attachments that are designed to look like official invoices. Interestingly, most of the attachments that we looked at this time were harmless. The goal is to get the recipient to call what appears to be a toll-free number.
While we haven’t called any of these numbers, the experience usually unfolds like a standard customer service call. In the end the “agents” simply claim the charges—which never existed in the first place—have been removed. Meanwhile the scammers steal any personal or financial information provided during the call.
While most billing scams we encountered played out as described above, a few did indeed contain malware.
In this example, the email appears to come from an internet service provider, informing us that our monthly bill is ready.
An invoice appears to be attached, stored within a .zip file. If the recipient opens it and double clicks the file within, a command prompt appears.
This may seem unusual to the recipient, especially since no invoice appears, but by this point it’s too late. The file contains a script that launches PowerShell and attempts to download a remote file.
While the remote file was no longer available at the time of analysis, there is a high likelihood it was malicious. But even though we were unable to determine its contents, Secure Malware Analytics flagged the script execution as malicious.
Knowing about prevalent scams, especially during the holiday season, is a first step in guarding against them. Granted the bad actors who distribute these spam campaigns do everything they can to make their scams look legitimate.
Fortunately, there are several things that you can do to identify scams and defend against them:
But even the best of us can be fooled, and when overseeing a large operation it’s more a matter of when, rather than if, someone clicks on the wrong link. There are elements of the Cisco Secure portfolio that can help for when the inevitable happens.
Cisco Secure Malware Analytics is the malware analysis and malware threat intelligence engine behind all products across the Cisco Security Architecture. The system delivers enhanced, in-depth, advanced malware analysis and context-rich intelligence to help better understand and fight malware within your environments. Secure Malware Analytics is available as a standalone solution, as a component in other Cisco Security solutions, and through software-as-a-service (SaaS) in the cloud, on-premises, and hybrid delivery models.
Cisco Secure Email protects against fraudulent senders, malware, phishing links, and spam. Its advanced threat detection capabilities can uncover known, emerging, and targeted threats. In addition, it defends against phishing by using advance machine learning techniques, real time behavior analytics, relationship modeling, and telemetry that protects against identity deception–based threats.
Cisco Umbrella unifies multiple security functions in a single cloud service to secure internet access. By enforcing security at the DNS layer, Umbrella blocks requests to malware before a connection is even established—before they reach your network or endpoints. In addition, the secure web gateway logs and inspects all web traffic for greater transparency, control, and protection, while the cloud-delivered firewall helps to block unwanted traffic.
Cisco Secure Endpoint is a single-agent solution that provides comprehensive protection, detection, response, and user access coverage to defend against threats to your endpoints. The SecureX platform is built into Secure Endpoint, as are Extended Detection and Response (XDR) capabilities. With the introduction of Cisco Secure MDR for Endpoint, we have combined Secure Endpoint’s superior capabilities with security operations to create a comprehensive endpoint security solution that dramatically decreases the mean time to detect and respond to threats while offering the highest level of always-on endpoint protection.
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Cyber security implies protecting the confidentiality, availability and integrity of computer systems and networks. Often security researchers and security teams focus on threats to software and the risks associated with authenticating and managing users. However, computing systems are built upon a tall stack of computing resources.
Each layer within the stack is exposed to specific threats which need to be considered as part of a cyber security strategy. As the threat landscape evolves and exposure to risk changes, organizations need to review their threat exposure and consider if current mitigations are sufficient for their needs.
The recent disruption of the Nord Stream submarine gas pipeline in the Baltic Sea by an apparent act of sabotage highlights the risks to infrastructure located beneath the waves. The telecommunications infrastructure that carries internet traffic between countries and continents is often provided by submarine cables. These cables are relatively few in number but carry vast amounts of internet and enterprise traffic, potentially from many different service providers.
The seabed is a challenging environment for infrastructure. Sea water is corrosive, the pressure on the ocean floor can be extreme, while earthquakes, ship’s anchors and dredging provide additional risks to may result in the severing of a cable. Submarine cables are only expected to achieve a lifespan in the region of 25 years before failure.
Repairing or replacing a submarine cable is expensive and time consuming. It may be many months before a failed cable can be repaired or replaced. In the absence of a functioning cable, internet connections must be rerouted to avoid disruption. However, this risks saturating the remaining infrastructure and adversely affecting the quality of connections.
Organizations that require high availability international or intercontinental network connections should review their exposure to the risk of submarine cables failure. The nature of this risk will depend on how services are currently delivered.
At the time of writing there is no specific threat to undersea infrastructure. Other than attacks against terrestrial cables, no cable damage has been shown to be due to sabotage. Nevertheless, the Secretary General of NATO has stressed the importance of undersea cables to civilian society and military capability [1]. The British Chief of Defense Staff has warned how seriously intentional damage to telecommunications cables would be taken [2].
Physical infrastructure can not be taken for granted. Organizations would do well to review the impact of one or more submarine cables being taken out of service. Preparing response plans and contingencies in advance ensures that disruption is kept to a minimum in the event that such a scenario occurs.
[1]. Press Conference (22 Oct 2020), NATO Secretary General Jens Stoltenberg.
https://www.nato.int/cps/en/natohq/opinions_178946.htm?selectedLocale=en
[2]. “Chief of Defence Staff: Russia cutting underwater cables could be ‘an act of war’” (8 Jan 2022), Forces.net.
https://www.forces.net/news/chief-defence-staff-russia-cutting-underwater-cables-could-be-act-war
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Today we’re examining some of the revelations in the Q3 Cisco Talos Incident Response Trends Report. This document is an anonymized look at of all the engagements that the Cisco Talos Incident Response team have been involved in over the previous three months. It also features threat intelligence from our team of researchers and analysts.
To start, take a watch of this episode of ThreatWise TV which explores how these trends have evolved since the previous quarter. Our guests also talk about incidents and cyber-attacks that they themselves have consulted on recently, including a particularly interesting insider threat case.
Ransomware returned as the top threat this quarter, after commodity trojans narrowly surpassed ransomware last quarter. Ransomware made up nearly 18 percent of all threats observed, up from 15 percent last quarter. Cisco Talos Incident Response (CTIR) observed high-profile families, such as Vice Society and Hive, as well as the newer family Blast Basta, which first emerged in April of this year.
Also noteworthy is the fact that CTIR saw an equal number in ransomware and pre- ransomware engagements this quarter, totalling nearly 40 percent of threats observed. Pre-ransomware is when we have observed a ransomware attack is about to happen, but the encryption of files has not yet taken place.
Pre-ransomware comprised 18 percent of threats this quarter, up from less than 5 percent previously. While it’s difficult to determine an adversary’s motivations if encryption does not take place, several behavioral characteristics bolster Talos’ confidence that ransomware may likely be the final objective. In these engagements adversaries were observed deploying frameworks such as Cobalt Strike and Mimikatz, alongside numerous enumeration and discovery techniques.
Commodity malware, such as the Qakbot banking trojan, was observed in multiple engagements this quarter. In one engagement, several compromised endpoints were seen communicating with IP addresses associated with Qakbot C2 traffic. This activity coincides with a general resurgence of Qakbot and its delivery of emerging ransomware families and offensive security frameworks that we have not previously observed Qakbot deploy. This comes at a time where competing email-based botnets like Emotet and Trickbot have suffered continued setbacks from law enforcement and tech companies.
Other threats this quarter include infostealers like Redline Stealer and Raccoon Stealer. Redline Stealer was observed across three engagements this quarter, two of which involved ransomware. The malware operators behind Raccoon introduced new functionality to the malware at the end of June, which likely contributed to its increased presence in engagements this quarter.
As infostealers have continued to rank highly in CTIR engagements, let’s explore them in a bit more detail.
Throughout the incidents discussed over the last few quarters, and CTIR engagements in general, information stealing plays a big part of the attackers’ TTPs.
From a high level, infostealers can be used to gain access a variety of sensitive information, such as contact information, financial details, and even intellectual property. The adversaries involved often proceed to exfiltrate this information and may then attempt to sell it in dark web forums, threaten to release it if a ransom isn’t paid, among other things.
While these instances can and do crop up in CTIR engagements, many of the infostealers seen in this space are used for accessing and collecting user credentials. Once an attacker has gained an initial foothold on a system, there are many places within an operating system that they can look for and collect credentials through the practice of credential dumping.
These stolen credentials may be offered up for sale on the dark web, alongside the stolen information mentioned above, but they can also prove to be a key weapon in an attacker’s arsenal. Their usefulness lies in one simple concept—why force your way into a system when you can just log in?
There are several advantages for bad actors that use this approach. Probably the most oblivious of these is that using pre-existing credentials is far more likely to go unnoticed than other more flagrant tactics an attacker can use. If part of the goal of an attack is to remain under the radar, activities carried out by “known users” are less likely to trigger security alerts when compared to tactics such as exploiting vulnerabilities or downloading malware binaries.
Adversaries tend to seek credentials with higher privileges, allowing them further control over the systems they compromise, with those including administrative access being the crown jewels.
User credentials can not only provide an attacker with means to elevate privileges and establish persistence on a system, but also to move laterally through a network. Some credentials, especially those with administrative privileges, can offer access to multiple systems throughout a network. By obtaining them, many more options become available to further an attack.
There are several threats involved in information stealing that appear repeatedly in CTIR engagements over the last few quarters.
Perhaps the most notorious is Mimikatz—a tool used to pull credentials from operating systems. Mimikatz is not malware per-se and can be useful for penetration testing and red team activities. But bad actors leverage it as well, and over the last few quarters CTIR has observed it being used in ransomware-as-a-service attacks, as well as pre-ransomware incidents.
CTIR has also observed Redline Stealer being utilized by adversaries in CTIR engagements across quarters. This infostealer has grown in popularity as a supplementary tool used alongside other malware. On more than one occasion, CTIR has identified stolen credentials on the dark web that claimed to have been obtained via Redline Stealer.
Other information stealers seen across the last few quarters include the Vidar information stealer, Raccoon Stealer, and SolarMaker, all of which have been used to further an adversary’s attacks.
Over the last several months, Talos has seen an increasing number of engagements involving insider threats. In one engagement this quarter, passwords were reset through a management console of a perimeter firewall that a disgruntled employee had access to.
The organization’s team changed all associated passwords but overlooked one administrative account. On the following day, someone logged in using that account, deleted all other accounts and firewall rules, and created one local account, likely to provide persistence.
You’ll hear Alexis Merritt, Incident Response Consultant for Cisco Talos, talk about this more in the ThreatWise TV episode.
To help protect against this threat when an individual leaves an organization, steps like disabling accounts and ensuring that connections to the enterprise remotely through VPN has been removed can be very valuable. Implementing a mechanism to wipe systems, especially for remote employees, is important as well.
For more on this topic, Cisco Secure recently put together a white paper on the Insider Threat Maturity FrameWork.
In several incidents over the last few quarters that involved information stealers, multi-factor authentication (MFA) was not properly implemented by the organizations impacted, providing adversaries an opportunity to infiltrate the networks. MFA tools like Cisco Secure Access by Duo can prevent attackers from successfully gaining access.
And finally, Cisco Advisory CISO Wolfgang Goerlich has created this storytelling video, to help people think about incident response in a new way:
Join the Cisco Talos Incident Response team for a live debrief of the Q3 report on 27th October.
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I’m sure you’ve seen them — emails or messages that sound alarming and ask you to act quickly. We live in a digital world that produces hundreds of messages and alerts every day. It’s often hard to determine the validity of a suspicious message or phishing email. Whether you are an administrator, or an end-user, it can be overwhelming to accurately identify a malicious message. When in doubt, here are some questions you should ask yourself:
Is the message from a legitimate sender?
Do I normally receive messages from this person?
If there’s a link, can I tell where it’s sending me?
Attackers continue to evolve their methods, and they’re highly educated on the defenses they come up against in the wild. They’ll craft messages that do not involve any traditional indicators of compromise, such as domains, IP address, or URL links. They’ll also start their attacks by sending messages as an initial lure to establish trust, before sending an email with altered invoice or one claiming to be a helpless employee attempting to get their payroll fixed.
Phishing is a socially-based attack type, one where the threat actors focus on human behavior. When these attacks target organizations, there are multiple levels of attack at play. One that focuses on behavioral patterns and workflow, and the other centers on the victim’s emotional boundaries, such as targeting their desire to help others. You see this pattern frequently in Business Email Compromise (BEC) attacks.
Below, we’ve placed an example of a lure, which will test the victim to see if there is a means to quickly establish trust. Here, the threat actor is pretending to be the Chief Financial Officer (CFO) of the victim’s organization. If the lure is successful, then the threat actor will progress the attack, and often request sensitive records or wire transfers. Notice that in the email headers, the person pretending to be the CFO is using a Gmail account, one that was likely created just for this attack. The message is brief, stresses importance and urgency, and requests assistance, playing on the victim’s workflow and desire to help an executive or someone with authority.
The example below is a simplified one, to be sure, but the elements are legitimate. Daily, emails like this hit the inboxes of organizations globally, and the attackers only need to locate a single victim to make their efforts payout.
In the FBI / IC3 2021 Internet Crime Report, there were nearly 20,000 Business Email Compromise complaints filed, with an adjusted loss of nearly 2.4 billion dollars. While spoofing the identity of an executive is certainly one way to conduct a BEC attack, the FBI says that threat actors have started leveraging the normality of hybrid-work to target meeting platforms to establish trust and conduct their crimes. When successful, the funds from the fraudulent wire transfers are moved to crypto wallets and the funds dispersed, making recovery harder.
So as an end user what can you do to protect your organization? Be mindful anytime you receive an urgent call to action, especially when the subject involves money. If your workflow means that you regularly receive these types of requests from the specific individual, verify their identity and the validity of the request using another channel of communication, such as in person or via phone. If you do validate their identity via the phone, take care to avoid calling any numbers listed in the email.
Cisco Secure Email helps stop these types of attacks by tracking user relationships and threat techniques. These techniques often include account takeover, spoofing and many more. Using an intent-based approach allows Secure Email to detect and classify business email compromises and other attacks, so administrators are empowered to take a risk-based approach to stopping these threats.
Find out more about how Cisco Secure Email can help keep your organization safe from phishing.
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Written by Martin Lee and Richard Archdeacon.
Lloyds of London have recently published a Market Bulletin1 addressing the wording of cyber insurance policies to exclude losses arising from:
“state backed cyber-attacks that (a) significantly impair the ability of a state to function or (b) that significantly impair the security capabilities of a state.”
The concern raised is that this sort of attack will produce losses that the market cannot absorb. Most insurance policies already include provisions that exclude the consequences of armed conflict. Applying these to potential cyber warfare is a logical step.
The bulletin includes the tenet to:
“set out a robust basis by which the parties agree on how any state backed cyber- attack will be attributed to one or more states.”
What should the CISO be thinking of when reviewing such an exclusion clause, how can we clearly define this key term and what issues may arise?
Attribution is the science of identifying the perpetrator of a crime. In cyber attacks, this is arrived at by comparing the evidence gathered from an attack with evidence gathered from previous attacks that have been attributed to known perpetrators to identify similarities.
In practice, statements of attributions are carefully phrased. Rarely is evidence clear-cut. Frequently attribution is labelled as being ‘consistent with’ a threat actor, or wrapped in words of estimative probability such as ‘highly likely’, ‘probably’, ‘possibly’ etc.
The malicious actors who conduct cyber attacks are referred to as threat actors. The cyber research community identifies and keeps track of the actions of these threat actors, publishing compendia of known actors such as those made available by MITRE2 or Malpedia3.
Rarely do threat actors identify their true identities, they may actively try to confuse or frustrate attribution. Many of the named groups may be synonyms of other groups, equally many of the chains of evidence used to attribute groups may be incorrect. The compendia of threat actors should not be considered as reaching the evidence threshold of “beyond reasonable doubt”.
Some identified threat actor groups are assumed to be criminal gangs due to the nature of their activity. Others appear to be conducting attacks solely to further the geopolitical aims of a nation state and are assumed as being state sponsored or state backed. Some of these groups have been able to be associated with specific national intelligence agencies or state apparatus.
The following are four practical factors to consider when setting out a robust basis for attribution of attacks in a contractual basis.
Step 1 – Collect forensic evidence.
No attribution of an attack can be made without forensic evidence. CISOs should ensure that they are able to gather forensic evidence from attacks to identify as much information as possible regarding how an attack was carried out, and the infrastructure used by the attacker. This requires a basic level of security telemetry gathering with the ability to secure and query this data.
This forensic capability, how evidence will be gathered and preserved, should be agreed with the insurer. However, both parties must bear in mind that attackers may destroy or tamper with evidence, and in the urgency of halting an attack, forensic evidence may be compromised or omitted.
The CISO should be prepared to discuss internally with senior executives the possibly competing priorities of stopping an attack versus collecting good forensic evidence.
Step 2 – Define how attribution will be made.
The attribution of a specific attack must be made by comparing evidence gathered from the attack with that of previous attacks. CISOs should agree the process by which forensic artifacts are used to attribute attacks and the degree of certitude necessary to declare an attack as having been carried out by a specific group.
The set of organisations trusted to assert attribution should be agreed. Attribution made by national bodies such as NCSC, CISA or ENISA may be assumed to be reliable, as may those made by major security vendors (such as Cisco) with expertise and resources that a CISO will never have inhouse. However, anyone can suggest attribution. CISOs should be certain to insist on the exclusion of assertions that have not been confirmed by a trusted entity.
This raises the question as to whether a trusted organisation would be prepared to support their attribution in a scenario where they would have to expose their intelligence sources and methodologies to examination. Attribution may be based on classified intelligence, or made according to ‘fair efforts’ that fall below the legal threshold of “on the balance of probabilities.”
Step 3 – Consider the volatility of attribution.
The gathering of evidence and intelligence is a continuing process. Information previously assumed to be fact may be subsequently identified as incorrect or a purposeful red herring. New evidence may be identified months or years after an attack that changes the estimated attribution of prior attacks.
CISOs must determine a period after which the attribution of attack (if made) will not be changed even if subsequent evidence is uncovered.
Step 4 – Define the nature of state backing.
CISOs should agree what constitutes state backing. Ideally CISOs should agree with their insurers the set of threat actor groups (and their synonyms) which are considered to be ‘state backed’.
State involvement in cyber attacks is a spectrum of activity. Criminal threat actors may be under various degrees of state tolerance or encouragement without being fully backed by a nation state. Some criminal groups may be under partial state direction, acting in a manner akin to privateers. Some state backed actors may indulge in criminal style attacks to boost their coffers.
In any case, criminal and state sponsored actors can easily be confused. They may choose to use the same tools or apply the same techniques to conduct their activities. Non-state threat actors may come into possession of state developed tools which may have been stolen or traded without permission.
Some threat actors may actively resort to influence attribution, either through choice of tooling, or through sock puppet accounts attesting attribution, to increase pressure on CISOs to pay ransoms by influencing if insurance is paid out or not.
The decision line where an attack can be referred to a ‘state backed’ is a fine one that requires consideration and agreement.
Changes bring opportunities, the need for this robust process may cause complications for CISOs. But it is an opportunity for CISOs to review the details of cyber insurance contracts and to hammer out the details of how issues of attribution will be determined.
Lloyd’s Market Association provide sample clauses for insurers4, we intend to consider these in a subsequent blog.
One thing is certain, there will be many opportunities for the legal profession.
The information provided here does not, and is not intended to, constitute legal advice. When negotiating a specific matter, readers should confer with their own legal adviser to obtain advice appropriate for a specific insurance contract issue.
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Security tools are only as good as the intelligence and expertise that feeds them. We’re very fortunate to have our security technologies powered by Cisco Talos, one of the largest and most trusted threat intelligence groups in the world. Talos is comprised of highly skilled researchers, analysts, and engineers who provide industry-leading visibility, actionable intelligence, and vulnerability research to protect both our customers and the internet at large.
The Talos team serves as a crucial pillar of our innovation — alerting customers and the public to new threats and mitigation tactics, enabling us to quickly incorporate protection into our products, and stepping in to help organizations with incident response, threat hunting, compromise assessments and more. Talos can also be found securing large-scale events such as the Super Bowl, and working with government and law enforcement organizations across the globe to share intelligence.
With Cisco’s vast customer base and broad portfolio — from routers and switches to email and endpoints — Talos has visibility into worldwide telemetry. Once a threat is seen, whether it’s a phishing URL or an IP address hosting malware, detections are created and indicators of compromise are categorized and blocked across our Cisco Secure portfolio.
Talos also leverages its unique insights to help society as a whole better understand and combat the cyberattacks facing us daily. During the war in Ukraine, the group has taken on the additional task of defending over 30 critical infrastructure providers in the country by directly managing and monitoring their endpoint security.
The reality of security today is that organizations must be constantly ready to detect and contain both known and unknown threats, minimize impact, and keep business going no matter what happens in the cyber realm. In light of hybrid work, evolving network architectures, and increasingly insidious attacks, all organizations must also be prepared to rapidly recover if disaster strikes, and then emerge stronger. We refer to this as security resilience, and Talos plays a critical role in helping our customers achieve it.
For several years, our integrated, cloud-native Cisco SecureX platform has been delivering extended detection and response (XDR) capabilities and more. SecureX allows customers to aggregate, analyze, and act on intelligence from disparate sources for a coordinated response to cyber threats.
Through the SecureX platform, intelligence from Talos is combined with telemetry from our customers’ environments — including many third-party tools — to provide a more complete picture of what’s going on in the network. Additionally, built-in, automated response functionality helps to speed up and streamline mitigation. This way, potential attacks can be identified, prioritized, and remediated before they lead to major impact.
For XDR to be successful, it must not only aggregate data, but also make sense of it. Through combined insights from various resources, SecureX customers obtain the unified visibility and context needed to rapidly prioritize the right threats at the right time. With SecureX, security analysts spend up to 90 percent less time per incident.
One of Australia’s largest universities, Deakin University, needed to improve its outdated security posture and transition from ad hoc processes to a mature program. Its small security team sought an integrated solution to simplify and strengthen threat defense.
With a suite of Cisco security products integrated through SecureX, Deakin University was able to reduce the typical investigation and response time for a major threat down from over a week to just an hour. The university was also able to decrease its response time for malicious emails from an hour to as little as five minutes.
“The most important outcome that we have achieved so far is that security is now a trusted function.”
– Fadi Aljafari, Information Security and Risk Manager, Deakin University
Also in the education space, AzEduNet provides connectivity and online services to 1.5 million students and 150,000 teachers at 4,300 educational institutions in Azerbaijan. “We don’t have enough staff to monitor every entry point into our network and correlate all the information from our security solutions,” says Bahruz Ibrahimov, senior information security engineer at AzEduNet.
The organization therefore implemented Cisco SecureX to accelerate investigations and incident management, maximize operational efficiency with automated workflows, and decrease threat response time. With SecureX, AzEduNet has reduced its security incidents by 80 percent.
“The integration with all our Cisco Secure solutions and with other vendors saves us response and investigation time, as well as saving time for our engineers.”
– Bahruz Ibrahimov, Senior Information Security Engineer, AzEduNet
The sophistication of attackers and sheer number of threats out there today make it extremely challenging for most cybersecurity teams to effectively stay on top of alerts and recognize when something requires their immediate attention. According to a survey by ESG, 81 percent of organizations say their security operations have been affected by the cybersecurity skills shortage.
That’s why Talos employs hundreds of researchers around the globe — and around the clock — to collect and analyze massive amounts of threat data. The group uses the latest in machine learning logic and custom algorithms to distill the data into manageable, actionable intelligence.
“Make no mistake, this is a battle,” said Nick Biasini, head of outreach for Cisco Talos, who oversees a team of global threat hunters. “In order to keep up with the adversaries, you really need a deep technical understanding of how these threats are constructed and how the malware operates to quickly identify how it’s changing and evolving. Offense is easy, defense is hard.”
Earlier this year, we unveiled our strategic vision for the Cisco Security Cloud to deliver end-to-end security across hybrid, multicloud environments. Talos will continue to play a pivotal role in our technology as we execute on this vision. In addition to driving protection in our products, Talos also offers more customized and hands-on expertise to customers when needed.
Cisco Talos Incident Response provides a full suite of proactive and emergency services to help organizations prepare for, respond to, and recover from a breach — 24 hours a day. Additionally, the recently released Talos Intel on Demand service delivers custom research unique to your organization, as well as direct access to Talos security analysts for increased awareness and confidence.
Visit our dedicated Cisco Talos web page to learn more about the group and the resources it offers to help keep global organizations cyber resilient. Then, discover how XDR helps Security Operations Center (SOC) teams hunt for, investigate, and remediate threats.
Watch video: What it means to be a threat hunter
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Cisco Talos has a long-standing relationship with Ukraine, so when Russia invaded the country earlier this year, things hit close to home. Cisco Talos leaders rallied together to provide cybersecurity threat hunting to vital infrastructure, humanitarian support and goods and services to employees and their families in the region.
Ashlee Benge, Amy Henderson and Sammi Seaman spearheaded initiatives to support and sustain Ukrainian employees and threat hunters working around-the-clock to prevent cyberattacks and remember the human element. Even in the midst of crisis, they’ve facilitated open communication, emphasized mental health and cultivated connection.
Given Ukraine’s unique position on the front lines of cyberwarfare, Cisco Talos has had a very close partnership with Ukraine. The threat intelligence team has worked with several partners in the country from a cyber threat perspective. That long standing connection is part of why Russia’s invasion of Ukraine has been felt so deeply. “Some Ukrainian team members evacuated before the invasion, others did not,” said Amy Henderson, head of strategic planning & communications. “Our teams of threat hunters have been around-the-clock hunting in the data since the invasion. They’re stopping attacks from happening.”
Cisco Talos set up Cisco Secure Endpoint on about thirty partners’ organizations and extended the offering to critical infrastructure organizations in Ukraine such as hospitals, directly monitoring Cisco Secure Endpoint, “because their people are busy doing other things right now. They can’t sit at a screen,” Henderson said.
Lead of Strategic Business Intelligence Ashlee Benge directs the Ukraine Threat Hunting Task Unit which requires empathy, compassion and an awareness of the needs of forty-five threat hunters. Veteran threat hunters with decades of experience have volunteered to contribute to the team while other members of Cisco Talos have also volunteered their skill sets to the work. Benge values the distinct contributions of her team members and describes them as, “quite brilliant and very good at their jobs. Talos does a really good job of hiring good people, and so the worst thing that I could do is get in their way.” Getting in their way looks different for different team members which is why Benge has established trainings and consistent ways to evaluate that the needs of her team are being met.
The nature of such a demanding, on-going situation coupled with the team’s dedication can lead employees to work themselves into the ground. To combat this, leaders maintain weekly check-ins that include asking employees how they’re taking care of themselves and checking for signs of burnout. “When you have rest you’re at peak performance and can problem solve. But when you start burning out and get to be irritable and snappy, you’re not able to problem solve. Just step back. You’ll be in a much better head space,” Henderson advises.
Stepping back has meant rotating projects to level out activity levels and urgency. Leaders have also stepped in to ensure employees take time off and that when they’re away, they’re fully away. “When you’re in such a high intensity environment it takes two to three days just to come off of that. If you’re only taking a day here or day there, you’re not even scratching the surface of coming down. So I’ll suggest maybe you need to take a week and completely recharge,” Henderson says.
Team Lead of Employee Experience Sammi Seaman was heartened by Cisco’s support of Ukrainian employees including helping employees and their families out of cities and into new housing. The humanitarian focus led Seaman to ask “How else can we help? Our colleagues have had to leave their homes and they’re still trying to do work. How do I get them necessities like medicine and shampoo?”
Seaman’s empathy and collaboration within her team and with Cisco Talos leadership led to determining the highest needs including more stable internet and navigating the transport of goods directly to employees and their families through freight mail. Seaman worked with her team to ensure necessary items like medical kits could get directly to people who needed them as quickly as possible. There are also pages available coordinating housing, transportation and other forms of support.
“It’s been interesting to think about people needing medicine for various reasons and that I’m also buying Legos and castles so that the children who have been displaced have toys and things that bring them joy and allow them to be kids in this situation,” Seaman said.
As Seaman prepared more boxes to ship, an employee shared a photograph of his daughter with some of the things Seaman had sent. “I just started crying. It was such a relief.” A relief she wanted to share, leaving the boxes for a moment to connect with other team members around the positive impact of their hard work.
“Despite all of these things that are happening around us that are horrific and awful and things that shouldn’t be happening, there are still things that we can celebrate. We’re still humans who have feelings, relationships, milestones and holidays.” – Sammi Seaman
Remembering children also became important during spring holidays. Through asking employees if they celebrated Easter and if they’d like Easter baskets, she learned that many employees celebrated traditional Orthodox Ukrainian Easter and would appreciate the baskets.
Seaman’s colleague researched what people in Ukraine typically put in their Easter baskets and together they made the baskets, boxed them up and shipped them. “The baskets weren’t a necessity but were nice to remind people that despite all of these things that are happening around us that are horrific and awful and things that shouldn’t be happening, there are still things that we can celebrate. We’re still humans who have feelings, relationships, milestones and holidays.”
Outside of work, Benge competes as an Olympic weightlifter. After months of training, her first national level meet was scheduled to happen early into the war in Ukraine. She considered withdrawing given the 24/7 nature of Cisco Talos’ response. However, “only because of the support of those around me,” Benge decided to compete—while working from her phone in the warm up room between lifts. The physical movement allows Benge to manage her mental health and stress while modeling self-care for the team: “If I can’t be my own best self, then the people around me can hardly be expected to do the same.”
Self-care and mental health are so important to the team that Henderson and Benge recently joined their colleagues, Matt Olney, the director of threat intelligence and interdiction, and Strategic Communications Leader Mitch Neff on a Cisco Secure podcast about mental health. The conversation illuminated the importance of reaching out for help, utilizing support systems such as those provided by Cisco and talking to someone including a therapist.
“Using those types of resources is a valuable thing, particularly when managing very high levels of stress and anxiety that come with cybersecurity. No matter what kind of support it is that we need, it’s important to take that time and recognize that it’s valuable to invest in your own mental health,” Benge stated.
Seaman shared that because it can be hard to ask for help or delegate, when she does, she gives herself a pat on the back. She advises that especially in crisis situations it’s important to remember that while things need to get done, it’s not entirely on you to get those things done. “The leadership at Cisco Talos has really emphasized that you’re not alone. The employee assistance program has been a great resource and I’ve got a therapist that I talk to about these things and make sure that I’m taking care of myself so that I can continue to take care of others.”
The team’s bond and purpose run deep. “We care deeply about everyone that we work with. It’s okay to not be on at all times. It’s okay to feel sad and it’s okay to feel anxious. One of the things that I’ve loved about working with Cisco Talos, especially during these more difficult things, is that everybody’s got your back and they make it a safe space to share those feelings. I truly feel like the people I work with are like my family. We’re curated an environment where we can all talk about what we’re going through.”
To learn more about Cisco Talos, Cisco Secure and Duo Security and how you can apply your empathy, skills and passion to make a difference in cybersecurity, check out open roles.
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