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The COVID-19 pandemic, along with social distancing, has done many things to alter our lives. But in one respect it has merely accelerated a process begun many years ago. We were all spending more and more time online before the virus struck. But now, forced to work, study and socialize at home, the online digital world has become absolutely essential to our communications — and video conferencing apps have become our “face-to-face” window on the world.
The problem is that as users flock to these services, the bad guys are also lying in wait — to disrupt or eavesdrop on our chats, spread malware, and steal our data. Zoom’s problems have perhaps been the most widely publicized, because of its quickly rising popularity, but it’s not the only platform whose users have been potentially at risk. Cisco’s WebEx and Microsoft Teams have also had issues; while other platforms, such as Houseparty, are intrinsically less secure (almost by design for their target audience, as the name suggests).
Let’s take a look at some of the key threats out there and how you can stay safe while video conferencing.
Depending on the platform (designed for work or play) and the use case (business or personal), there are various opportunities for the online attacker to join and disrupt or eavesdrop on video conferencing calls. The latter is especially dangerous if you’re discussing sensitive business information.
Malicious hackers may also look to deliver malware via chats or shared files to take control of your computer, or to steal your passwords and sensitive personal and financial information. In a business context, they could even try to hijack your video conferencing account to impersonate you, in a bid to steal info from or defraud your colleagues or company.
The bad guys may also be able to take advantage of the fact that your home PCs and devices are less well-secured than those at work or school—and that you may be more distracted at home and less alert to potential threats.
To accomplish their goals, malicious hackers can leverage various techniques at their disposal. These can include:
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Zoom has in many ways become the victim of its own success. With daily meeting participants soaring from 10 million in December last year to 200 million by March 2020, all eyes have been focused on the platform. Unfortunately, that also includes hackers. Zoom has been hit by a number of security and privacy issues over the past several months, which include “Zoombombing” (meetings disrupted by uninvited guests), misleading encryption claims, a waiting room vulnerability, credential theft and data collection leaks, and fake Zoom installers. To be fair to Zoom, it has responded quickly to these issues, realigning its development priorities to fix the security and privacy issues discovered by its intensive use.
And Zoom isn’t alone. Earlier in the year, Cisco Systems had its own problem with WebEx, its widely-used enterprise video conferencing system, when it discovered a flaw in the platform that could allow a remote, unauthenticated attacker to enter a password-protected video conferencing meeting. All an attacker needed was the meeting ID and a WebEx mobile app for iOS or Android, and they could have barged in on a meeting, no authentication necessary. Cisco quickly moved to fix the high-severity vulnerability, but other flaws (also now fixed) have cropped up in WebEx’s history, including one that could enable a remote attacker to send a forged request to the system’s server.
More recently, Microsoft Teams joined the ranks of leading business videoconferencing platforms with potentially deadly vulnerabilities. On April 27 it surfaced that for at least three weeks (from the end of February till the middle of March), a malicious GIF could have stolen user data from Teams accounts, possibly across an entire company. The vulnerability was patched on April 20—but it’s a reminder to potential video conferencing users that even leading systems such as Zoom, WebEx, and Teams aren’t fool-proof and require periodic vulnerability and security fixes to keep them safe and secure. This is compounded during the COVID-19 pandemic when workers are working from home and connecting to their company’s network and systems via possibly unsecure home networks and devices.
So how do you choose the best, most secure, video conferencing software for your work-at-home needs? There are many solutions on the market today. In fact, the choice can be dizzying. Some simply enable video or audio meetings/calls, while others also allow for sharing and saving of documents and notes. Some are only appropriate for one-on-one connections or small groups, while others can scale to thousands.
In short, you’ll need to choose the video conferencing solution most appropriate to your needs, while checking if it meets a minimum set of security standards for working at home. This set of criteria should include end-to-end encryption, automatic and frequent security updates, the use of auto-generated meeting IDs and strong access controls, a program for managing vulnerabilities, and last but not least, good privacy practices by the company.
Some video conferencing options alongside Zoom, WebEx, and Teams include:
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Whatever video conferencing platform you use, it’s important to bear in mind that cyber-criminals will always be looking to take advantage of any security gaps they can find — in the tool itself or your use of it. So how do you secure your video conferencing apps? Some tips listed here are Zoom-specific, but consider their equivalents in other platforms as general best-practice tips. Depending on the use case, you might choose to not enable some of the options here.
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Fortunately, Trend Micro has a range of capabilities that can support your efforts to stay safe while using video conferencing services.
Trend Micro Home Network Security (HNS) protects every device in your home connected to the internet. That means it will protect you from malicious links and attachments in phishing emails spoofed to appear as if sent from video conferencing firms, as well as from those sent by hackers that may have covertly entered a meeting. Its Vulnerability Check can identify any vulnerabilities in your home devices and PCs, including work laptops, and its Remote Access Protection can reduce the risk of tech support scams and unwanted remote connections to your device. Finally, it allows parents to control their kids’ usage of video conferencing applications, to limit their exposure.
Trend Micro Security also offers protection against email, file, and web threats on your devices. Note too, that Password Manager is automatically installed with Maximum Security to help users create unique, strong passwords for each application/website they use, including video conferencing sites.
Finally, Trend Micro WiFi Protection (multi-platform) / VPN Proxy One (Mac and iOS) offer VPN connections from your home to the internet, creating secure encrypted tunnels for traffic to flow down. The VPN apps work on both Wi-Fi and Ethernet connections. This could be useful for users concerned their video conferencing app isn’t end-to-end encrypted, or for those wishing to protect their identity and personal information when interacting on these apps.
The post From Bugs to Zoombombing: How to Stay Safe in Online Meetings appeared first on .
The coronavirus pandemic—the infection officially designated as COVID-19—is causing upheaval across the globe. Aside from the serious economic and public health implications, one very practical impact of shelter-in-place dictums is to force many companies to support remote working where they can. The most recent data tells us that in 2017, eight million Americans worked from home at least some of the week — amounting to around 5% of US workers. However, the events of the past few weeks are driving what is being described in certain sectors as the biggest shift to home working since 9/11.
This will ensure that many companies can continue functioning while helping to achieve social distancing to minimise the spread of the virus. But there are challenges, particularly to smaller businesses who don’t have IT security teams to assist with the transition. Hackers are primed and ready to take advantage of home workers, whose machines and devices may not be as secure as those in the office. There’s also a risk that workers are more distracted by current events when working at home, creating more opportunities for cyber-criminals to strike.
This isn’t just about hackers stealing your personal log-ins and information to sell on the dark web. In a home-working context, corporate data and systems may also be at risk. It takes just one unsecured remote worker to let the bad guys in. The damage they end up doing may be particularly difficult for employers to weather given the extreme economic pressures already on many firms.
With that in mind, therefore, let’s take a look at some of the major threats to home workers and their organizations, and what can be done to keep the hackers at bay.
Phishing messages are by far the number one threat to home workers. Cyber-criminals are using widespread awareness of COVID-19, and a desire for more information on the outbreak, to trick users into clicking on malicious links or opening booby-trapped attachments. Many are spoofed to appear as if sent by trusted organizations such as the US Centers for Disease Control and Prevention (CDC) or the World Health Organization (WHO). They may claim to offer more information on the spread of the outbreak, tips on staying safe, and even provide details of how to get a non-existent vaccine online.
If you click through on a malicious link, the next stage of the attack could:
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Brute forcing is another way for hackers to hijack your cloud accounts. They use previously breached username/password combos and run them through automation software to try them across billions of websites and apps. Because users reuse passwords across numerous accounts, the bad guys often get lucky and are able to unlock additional accounts in this way. Home workers using Microsoft Teams, Slack, Zoom and other cloud platforms for collaboration and productivity may be targeted.
Malicious smartphone apps are another threat to home workers. These may be disguised to trick the user into believing they’re downloading a COVID-19 tracker, for example. In reality, it could infect the device with ransomware, info-stealers, or other malware. That device could then spread the same malware to the corporate network, if it is connected to it via the home network.
Smart device threats are also a concern for home workers. More and more of us are investing in smart home devices. From voice assistants to smart speakers, connected refrigerators to smart TVs, it’s estimated that there’ll be as many as 128 million smart homes in the US by the end of this year. However, often these consumer-grade devices don’t have strong built-in protection. They may use weak, factory default passwords and/or contain multiple software vulnerabilities which are rarely patched by the manufacturer, if at all. The risk is that hackers could hijack one or more of these devices and use them as a stepping stone into the home and then corporate network – as we’ve demonstrated in previous research.
Friends and family could also introduce new cyber-threats, as they will also be confined largely to the home. That means they’ll be logging on to the home network with their own mobile devices, which may not be as well protected from threats as they should be. Once again, such threats could spread quickly from the home network to infect the enterprise network if it’s connected without adequate security controls. Another risk is of children using unsecured remote learning platforms, which may offer cybercriminals opportunities to hijack accounts, steal information and spread malware onto the network.
Home workers represent an attractive target in their own right. After all, personal information and log-ins (home banking, Netflix, webmail etc) can be easily sold for a profit on dark web marketplaces. However, organizations represent a much bigger, potentially more lucrative pay day for cyber-criminals. While corporate PCs and networks might be fairly well secured, the rush to support home working may have left gaps the bad guys are keen to exploit.
By first compromising the home worker, and then pivoting through unsecured channels to the corporate network, hackers could spread ransomware, steal sensitive company IPs, infect work networks with crypto-mining malware, or steal large volumes of customer data. They may also look to hijack employees’ corporate email or other accounts as the first part of a multi-stage information-stealing attack. There have even been new warnings of Business Email Compromise (BEC) attacks in which employees (usually those working in the finance department) are contacted by someone posing as a senior exec and ordered to wire business funds to a new bank account.
With so many techniques at their disposal, it’s easy to imagine that the bad guys have the upper hand. But by putting a few best practices in place, there are things businesses and employees can do today to reduce home working security risks.
Consider the following:
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We don’t know how long COVID-19 will last. But by adapting to the new reality as quickly as possible, businesses and their home workers can at least close down any security gaps, enabling them to be as productive as possible — while most importantly, staying safe and healthy.
The post COVID-19: How Do I Work from Home Securely? appeared first on .
So you suddenly have a lot of staff working remotely. Telework is not new and a good percentage of the workforce already does so. But the companies who have a distributed workforce had time to plan for it, and to plan for it securely.
A Lot of New Teleworkers All At Once
This event can’t be treated like a quick rollout of an application: there are business, infrastructure, and customer security impacts. There will be an increase of work for help desks as new teleworkers wrestle with remote working.
Additionally, don’t compound the problem. There is advice circulating to reset all passwords for remote workers. This opens the door for increased social engineering to attempt to lure overworked help desk staff into doing password resets that don’t comply with policy. Set expectations for staff that policy must be complied with, and to expect some delays while the help desk is overloaded.
Business continuity issues will arise as limited planning for remote workers could max out VPN licenses, firewall capacity, and application timeouts as many people attempt to use the same apps through a narrower network pipe.
Help Staff Make A Secure Home Office
In the best of times, remote workers are often left to their own devices (pun intended) for securing their work at home experience. Home offices are already usually much less secure than corporate offices: weak routers, unmanaged PCs, and multiple users means home offices become an easier attack path into the enterprise.
It doesn’t make sense to have workers operate in a less secure environment in this context. Give them the necessary security tools and operational tools to do their business. Teleworkers, even with a company-issued device, are likely to work on multiple home devices. Make available enterprise licensed storage and sharing tools, so employees don’t have to resort to ‘sketchy’ or weak options when they exceed the limits for free storage on Dropbox or related services.
A Secure Web Gateway as a service is a useful option considering that teleworkers using a VPN will still likely be split tunneling (i.e. not going through corporate security devices when browsing to non-corporate sites, etc.), unlike when they are in the corporate office and all connections are sanitized. That is especially important in cases where a weak home router gets compromised and any exfiltration or other ‘phone home’ traffic from malware needs to be spotted.
A simple way to get this information out to employees is to add remote working security tips to any regularly occurring executive outreach.
Operational Issues
With a large majority of businesses switching to a work-from-home model with less emphasis on in-person meetings, we also anticipate that malicious actors will start to impersonate digital tools, such as ‘free’ remote conferencing services and other cloud computing software.
Having a policy on respecting telework privacy is a good preventative step to minimize the risk of this type of attack being successful. Remote workers may be concerned about their digital privacy when working from home, so any way to inform them about likely attack methods can help.
Any steps to prevent staff trying to evade security measures out of a concern over privacy are likely a good investment.
Crisis Specific Risks
During any major event or crisis, socially engineered attacks and phishing will increase. Human engineering means using any lever to make it a little bit easier for targets to click on a link.
We’re seeing targeted email attacks taking advantage of this. Some will likely use tactics such as attachments named “attached is your Work At Home Allowance Voucher,” spoofed corporate guidelines, or HR documents.
Sadly, we expect hospitals and local governments will see increased targeting by ransomware due the expectation that payouts are likelier during an emergency.
But Hang On – It Is Not All Bad News
The good news is that none of these attacks are new and we already have playbooks to defend against them. Give a reminder to all staff during this period to be more wary of phishing, but don’t overly depend on user education – back it up with security technology measures. Here are a few ways to do that.
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The post Suddenly Teleworking, Securely appeared first on .
Cybercriminals are often seen as having the upper hand over the “white hat” community. After all, they’re anonymous, can launch attacks from virtually anywhere in the world, and usually have the element of surprise. But there’s one secret weapon the good guys have: Collaboration. That’s why Trend Micro has always prioritized its partnerships with law enforcement, academia, governments and other cybersecurity businesses.
We’re proud to have contributed to yet another successful collaborative operation with INTERPOL Global Complex for Innovation (IGCI) in Singapore that’s helped to reduce the number of users infected by cryptomining malware by 78%.
Cryptomining On The Rise
Also known as cryptojacking, these attacks have become an increasingly popular way for cybercriminals to make money.
Why?
Because victims don’t know they’ve been infected. The malware sits on their machine in the background mining for digital currency 24/7/365. Increasingly, hackers have taken to launching sophisticated attacks against enterprise IT systems and cloud servers to increase their mining and earning potential. But many still target home computer systems like routers, as these are often left relatively unprotected. Stitch enough of these devices together in a botnet and they have a ready-made cash cow.
That’s why cryptojacking remained the most detected threat in the first half of 2019 in terms of file-based threat components, according to our data.
Unlike serious data breaches, phishing attacks, ransomware and banking Trojans, cryptojacking doesn’t have major impact on the victim. They don’t lose sensitive personal data, there’s no risk of follow-on identity fraud and they’re not extorted for funds by being locked out of their PC.
However, it’s not without consequences: Cryptomining malware can slow your home network to a crawl while running up serious energy bills. It may even bring your home computers to a premature end. Also, there’s always the risk with any kind of malware infection that hackers may switch tactics and use their footprint on your home machines to launch other attacks in the future.
Enter Operation Goldfish Alpha
That’s why we were keen to offer our assistance to INTERPOL during this year’s Operation Goldfish Alpha. Thanks to our broad global visibility into attack trends and infection rates, we were able to articulate the scale of the cryptojacking threat and key mitigation steps, at a pre-operation meeting with ASEAN law enforcement officers in June.
A few months later, we developed and disseminated a key Cryptojacking Mitigation and Prevention guidance document. It details how a vulnerability in MikroTik routers had exposed countless users in the region to the risk of compromise by cryptomining malware. The document explains how to scan for this flaw using Trend Micro HouseCall for Home Networks, and how HouseCall can be used to detect and delete the Coinhive JavaScript that hackers were using to mine for digital currency on infected PCs.
Spectacular Success
Over the five months of Operation Goldfish Alpha, experts from national Computer Emergency Response Teams (CERTs) and police across 10 countries in the region worked to locate the infected routers, notify the victims and use our guidance document to patch the bugs and kick out the hackers.
Having helped to identify over 20,000 routers in the region that were hacked in this way, we’re delighted to say that by November, the number had reduced by at least 78%.
That’s the value of partnerships between law enforcement and private cybersecurity companies: They combine the power of investigative policing with the detailed subject matter expertise, visibility and resources of industry experts like us. We’ll continue to lend a hand wherever we can to make our connected, digital world a safer place.
The post INTERPOL Collaboration Reduces Cryptojacking by 78% appeared first on .
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