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Hands-on Review: Myrror Security Code-Aware and Attack-Aware SCA

By The Hacker News
Introduction The modern software supply chain represents an ever-evolving threat landscape, with each package added to the manifest introducing new attack vectors. To meet industry requirements, organizations must maintain a fast-paced development process while staying up-to-date with the latest security patches. However, in practice, developers often face a large amount of security work

From Megabits to Terabits: Gcore Radar Warns of a New Era of DDoS Attacks

By The Hacker News
As we enter 2024, Gcore has released its latest Gcore Radar report, a twice-annual publication in which the company releases internal analytics to track DDoS attacks. Gcore’s broad, internationally distributed network of scrubbing centers allows them to follow attack trends over time. Read on to learn about DDoS attack trends for Q3–Q4 of 2023, and what they mean for developing a robust

New iShutdown Method Exposes Hidden Spyware Like Pegasus on Your iPhone

By Newsroom
Cybersecurity researchers have identified a "lightweight method" called iShutdown for reliably identifying signs of spyware on Apple iOS devices, including notorious threats like NSO Group's Pegasus, QuaDream's Reign, and Intellexa's Predator.  Kaspersky, which analyzed a set of iPhones that were compromised with Pegasus, said the infections left traces in a file

Decoy Microsoft Word Documents Used to Deliver Nim-Based Malware

By Newsroom
A new phishing campaign is leveraging decoy Microsoft Word documents as bait to deliver a backdoor written in the Nim programming language. "Malware written in uncommon programming languages puts the security community at a disadvantage as researchers and reverse engineers' unfamiliarity can hamper their investigation," Netskope researchers Ghanashyam Satpathy and Jan Michael Alcantara&nbsp

Chameleon Android Banking Trojan Variant Bypasses Biometric Authentication

By Newsroom
Cybersecurity researchers have discovered an updated version of an Android banking malware called Chameleon that has expanded its targeting to include users in the U.K. and Italy. "Representing a restructured and enhanced iteration of its predecessor, this evolved Chameleon variant excels in executing Device Takeover (DTO) using the accessibility service, all while expanding its targeted region,

New Pierogi++ Malware by Gaza Cyber Gang Targeting Palestinian Entities

By Newsroom
A pro-Hamas threat actor known as Gaza Cyber Gang is targeting Palestinian entities using an updated version of a backdoor dubbed Pierogi. The findings come from SentinelOne, which has given the malware the name Pierogi++ owing to the fact that it's implemented in the C++ programming language unlike its Delphi- and Pascal-based predecessor. "Recent Gaza Cybergang activities show

Iranian State-Sponsored OilRig Group Deploys 3 New Malware Downloaders

By Newsroom
The Iranian state-sponsored threat actor known as OilRig deployed three different downloader malware throughout 2022 to maintain persistent access to victim organizations located in Israel. The three new downloaders have been named ODAgent, OilCheck, and OilBooster by Slovak cybersecurity company ESET. The attacks also involved the use of an updated version of a known OilRig downloader

How to Analyze Malware’s Network Traffic in A Sandbox

By The Hacker News
Malware analysis encompasses a broad range of activities, including examining the malware's network traffic. To be effective at it, it's crucial to understand the common challenges and how to overcome them. Here are three prevalent issues you may encounter and the tools you'll need to address them. Decrypting HTTPS traffic Hypertext Transfer Protocol Secure (HTTPS), the protocol for secure

Microsoft Warns of Hackers Exploiting OAuth for Cryptocurrency Mining and Phishing

By Newsroom
Microsoft has warned that adversaries are using OAuth applications as an automation tool to deploy virtual machines (VMs) for cryptocurrency mining and launch phishing attacks. "Threat actors compromise user accounts to create, modify, and grant high privileges to OAuth applications that they can misuse to hide malicious activity," the Microsoft Threat Intelligence team said in an

Microsoft Warns of COLDRIVER's Evolving Evasion and Credential-Stealing Tactics

By The Hacker News
The threat actor known as COLDRIVER has continued to engage in credential theft activities against entities that are of strategic interests to Russia while simultaneously improving its detection evasion capabilities. The Microsoft Threat Intelligence team is tracking under the cluster as Star Blizzard (formerly SEABORGIUM). It's also called Blue Callisto, BlueCharlie (or TAG-53),

Agent Racoon Backdoor Targets Organizations in Middle East, Africa, and U.S.

By Newsroom
Organizations in the Middle East, Africa, and the U.S. have been targeted by an unknown threat actor to distribute a new backdoor called Agent Racoon. "This malware family is written using the .NET framework and leverages the domain name service (DNS) protocol to create a covert channel and provide different backdoor functionalities," Palo Alto Networks Unit 42 researcher Chema Garcia 

Zero-Day Alert: Apple Rolls Out iOS, macOS, and Safari Patches for 2 Actively Exploited Flaws

By Newsroom
Apple has released software updates for iOS, iPadOS, macOS, and Safari web browser to address two security flaws that it said have come under active exploitation in the wild on older versions of its software. The vulnerabilities, both of which reside in the WebKit web browser engine, are described below - CVE-2023-42916 - An out-of-bounds read issue that could be exploited to

7 Uses for Generative AI to Enhance Security Operations

By The Hacker News
Welcome to a world where Generative AI revolutionizes the field of cybersecurity. Generative AI refers to the use of artificial intelligence (AI) techniques to generate or create new data, such as images, text, or sounds. It has gained significant attention in recent years due to its ability to generate realistic and diverse outputs. When it comes to security operations, Generative AI can

Zero-Day Alert: Google Chrome Under Active Attack, Exploiting New Vulnerability

By Newsroom
Google has rolled out security updates to fix seven security issues in its Chrome browser, including a zero-day that has come under active exploitation in the wild. Tracked as CVE-2023-6345, the high-severity vulnerability has been described as an integer overflow bug in Skia, an open source 2D graphics library. Benoît Sevens and Clément Lecigne of Google's Threat Analysis Group (TAG) have

Cybercriminals Using Telekopye Telegram Bot to Craft Phishing Scams on a Grand Scale

By Newsroom
More details have emerged about a malicious Telegram bot called Telekopye that's used by threat actors to pull off large-scale phishing scams. "Telekopye can craft phishing websites, emails, SMS messages, and more," ESET security researcher Radek Jizba said in a new analysis. The threat actors behind the operation – codenamed Neanderthals – are known to run the criminal enterprise as a

Alert: New WailingCrab Malware Loader Spreading via Shipping-Themed Emails

By Newsroom
Delivery- and shipping-themed email messages are being used to deliver a sophisticated malware loader known as WailingCrab. "The malware itself is split into multiple components, including a loader, injector, downloader and backdoor, and successful requests to C2-controlled servers are often necessary to retrieve the next stage," IBM X-Force researchers Charlotte Hammond, Ole Villadsen, and Kat

ClearFake Campaign Expands to Target Mac Systems with Atomic Stealer

By Newsroom
The macOS information stealer known as Atomic is now being delivered to target via a bogus web browser update chain tracked as ClearFake. "This may very well be the first time we see one of the main social engineering campaigns, previously reserved for Windows, branch out not only in terms of geolocation but also operating system," Malwarebytes' Jérôme Segura said in a Tuesday analysis. Atomic

LockBit Ransomware Exploiting Critical Citrix Bleed Vulnerability to Break In

By Newsroom
Multiple threat actors, including LockBit ransomware affiliates, are actively exploiting a recently disclosed critical security flaw in Citrix NetScaler application delivery control (ADC) and Gateway appliances to obtain initial access to target environments. The joint advisory comes from the U.S. Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI),

How Multi-Stage Phishing Attacks Exploit QRs, CAPTCHAs, and Steganography

By The Hacker News
Phishing attacks are steadily becoming more sophisticated, with cybercriminals investing in new ways of deceiving victims into revealing sensitive information or installing malicious software. One of the latest trends in phishing is the use of QR codes, CAPTCHAs, and steganography. See how they are carried out and learn to detect them. Quishing Quishing, a phishing technique resulting from the

Malicious Apps Disguised as Banks and Government Agencies Targeting Indian Android Users

By Newsroom
Android smartphone users in India are the target of a new malware campaign that employs social engineering lures to install fraudulent apps that are capable of harvesting sensitive data. “Using social media platforms like WhatsApp and Telegram, attackers are sending messages designed to lure users into installing a malicious app on their mobile device by impersonating legitimate organizations,

Zero-Day Flaw in Zimbra Email Software Exploited by Four Hacker Groups

By Newsroom
A zero-day flaw in the Zimbra Collaboration email software was exploited by four different groups in real-world attacks to pilfer email data, user credentials, and authentication tokens. "Most of this activity occurred after the initial fix became public on GitHub," Google Threat Analysis Group (TAG) said in a report shared with The Hacker News. The flaw, tracked as CVE-2023-37580 (CVSS score:

Experts Uncover DarkCasino: New Emerging APT Threat Exploiting WinRAR Flaw

By Newsroom
A hacking group that leveraged a recently disclosed security flaw in the WinRAR software as a zero-day has now been categorized as an entirely new advanced persistent threat (APT). Cybersecurity company NSFOCUS has described DarkCasino as an "economically motivated" actor that first came to light in 2021. "DarkCasino is an APT threat actor with strong technical and learning ability, who is good

Three Ways Varonis Helps You Fight Insider Threats

By The Hacker News
What do basketball teams, government agencies, and car manufacturers have in common? Each one has been breached, having confidential, proprietary, or private information stolen and exposed by insiders. In each case, the motivations and methods varied, but the risk remained the same: insiders have access to too much data with too few controls. Insider threats continue to prove difficult for

New BiBi-Windows Wiper Targets Windows Systems in Pro-Hamas Attacks

By Newsroom
Cybersecurity researchers have warned about a Windows version of a wiper malware that was previously observed targeting Linux systems in cyber attacks aimed at Israel. Dubbed BiBi-Windows Wiper by BlackBerry, the wiper is the Windows counterpart of BiBi-Linux Wiper, which has been put to use by a pro-Hamas hacktivist group in the wake of the Israel-Hamas war last month. "The Windows variant [...

New Apple Zero-Days Exploited to Target Egyptian ex-MP with Predator Spyware

By THN
The three zero-day flaws addressed by Apple on September 21, 2023, were leveraged as part of an iPhone exploit chain in an attempt to deliver a spyware strain called Predator targeting former Egyptian member of parliament Ahmed Eltantawy between May and September 2023. "The targeting took place after Eltantawy publicly stated his plans to run for President in the 2024 Egyptian elections," the

Inside the Code of a New XWorm Variant

By The Hacker News
XWorm is a relatively new representative of the remote access trojan cohort that has already earned its spot among the most persistent threats across the globe.  Since 2022, when it was first observed by researchers, it has undergone a number of major updates that have significantly enhanced its functionality and solidified its staying power.  The analyst team at ANY.RUN came across the newest

LimeRAT Malware Analysis: Extracting the Config

By The Hacker News
Remote Access Trojans (RATs) have taken the third leading position in ANY. RUN's Q1 2023 report on the most prevalent malware types, making it highly probable that your organization may face this threat. Though LimeRAT might not be the most well-known RAT family, its versatility is what sets it apart. Capable of carrying out a broad spectrum of malicious activities, it excels not only in data

How to Build a Research Lab for Reverse Engineering — 4 Ways

By The Hacker News
Malware analysis is an essential part of security researcher's work. But working with malicious samples can be dangerous — it requires specialized tools to record their activity, and a secure environment to prevent unintended damage. However, manual lab setup and configuration can prove to be a laborious and time-consuming process. In this article, we'll look at 4 ways to create a reverse

How to Detect New Threats via Suspicious Activities

By The Hacker News
Unknown malware presents a significant cybersecurity threat and can cause serious damage to organizations and individuals alike. When left undetected, malicious code can gain access to confidential information, corrupt data, and allow attackers to gain control of systems. Find out how to avoid these circumstances and detect unknown malicious behavior efficiently.  Challenges of new threats'

3 Lifehacks While Analyzing Orcus RAT in a Malware Sandbox

By The Hacker News
Orcus is a Remote Access Trojan with some distinctive characteristics. The RAT allows attackers to create plugins and offers a robust core feature set that makes it quite a dangerous malicious program in its class. RAT is quite a stable type that always makes it to the top. ANY.RUN’s top malware types in 2022 That's why you'll definitely come across this type in your practice, and the Orcus

Google Takes Down 50,000 Instances of Pro-Chinese DRAGONBRIDGE Influence Operation

By Ravie Lakshmanan
Google on Thursday disclosed it took steps to dismantle over 50,000 instances of activity orchestrated by a pro-Chinese influence operation known as DRAGONBRIDGE in 2022. "Most DRAGONBRIDGE activity is low quality content without a political message, populated across many channels and blogs," the company's Threat Analysis Group (TAG) said in a report shared with The Hacker News. "However, a

Deep Packet Inspection vs. Metadata Analysis of Network Detection & Response (NDR) Solutions

By The Hacker News
Today, most Network Detection and Response (NDR) solutions rely on traffic mirroring and Deep Packet Inspection (DPI). Traffic mirroring is typically deployed on a single-core switch to provide a copy of the network traffic to a sensor that uses DPI to thoroughly analyze the payload. While this approach provides detailed analysis, it requires large amounts of processing power and is blind when

How to Do Malware Analysis?

By The Hacker News
Based on the findings of Malwarebytes' Threat Review for 2022, 40 million Windows business computers' threats were detected in 2021. In order to combat and avoid these kinds of attacks, malware analysis is essential. In this article, we will break down the goal of malicious programs' investigation and how to do malware analysis with a sandbox. What is malware analysis?  Malware analysis is a

Conti’s Ransomware Toll on the Healthcare Industry

By BrianKrebs

Conti — one of the most ruthless and successful Russian ransomware groups — publicly declared during the height of the COVID-19 pandemic that it would refrain from targeting healthcare providers. But new information confirms this pledge was always a lie, and that Conti has launched more than 200 attacks against hospitals and other healthcare facilities since first surfacing in 2018 under its earlier name, “Ryuk.”

On April 13, Microsoft said it executed a legal sneak attack against Zloader, a remote access trojan and malware platform that multiple ransomware groups have used to deploy their malware inside victim networks. More specifically, Microsoft obtained a court order that allowed it to seize 65 domain names that were used to maintain the Zloader botnet.

Microsoft’s civil lawsuit against Zloader names seven “John Does,” essentially seeking information to identify cybercriminals who used Zloader to conduct ransomware attacks. As the company’s complaint notes, some of these John Does were associated with lesser ransomware collectives such as Egregor and Netfilim.

But according to Microsoft and an advisory from the U.S. Cybersecurity & Infrastructure Security Agency (CISA), Zloader had a special relationship with Ryuk/Conti, acting as a preferred distribution platform for deploying Ryuk/Conti ransomware.

Several parties backed Microsoft in its legal efforts against Zloader by filing supporting declarations, including Errol Weiss, a former penetration tester for the U.S. National Security Agency (NSA). Weiss now serves as the chief security officer of the Health Information Sharing & Analysis Center (H-ISAC), an industry group that shares information about cyberattacks against healthcare providers.

Weiss said ransomware attacks from Ryuk/Conti have impacted hundreds of healthcare facilities across the United States, including facilities located in 192 cities and 41 states and the District of Columbia.

“The attacks resulted in the temporary or permanent loss of IT systems that support many of the provider delivery functions in modern hospitals resulting in cancelled surgeries and delayed medical care,” Weiss said in a declaration (PDF) with the U.S. District Court for the Northern District of Georgia.

“Hospitals reported revenue losses due to Ryuk infections of nearly $100 million from data I obtained through interviews with hospital staff, public statements, and media articles,” Weiss wrote. “The Ryuk attacks also caused an estimated $500 million in costs to respond to the attacks – costs that include ransomware payments, digital forensic services, security improvements and upgrading impacted systems plus other expenses.”

The figures cited by Weiss appear highly conservative. A single attack by Ryuk/Conti in May 2021 against Ireland’s Health Service Executive, which operates the country’s public health system, resulted in massive disruptions to healthcare in Ireland. In June 2021, the HSE’s director general said the recovery costs for that attack were likely to exceed USD $600 million.

Conti ravaged the healthcare sector throughout 2020, and leaked internal chats from the Conti ransomware group show the gang had access to more than 400 healthcare facilities in the U.S. alone by October 2020.

On Oct. 28, 2020, KrebsOnSecurity broke the news that FBI and DHS officials had seen reliable intelligence indicating the group planned to ransom many of these care facilities simultaneously. Hours after that October 2020 piece ran, I heard from a respected H-ISAC security professional who questioned whether it was worth getting the public so riled up. The story had been updated multiple times throughout the day, and there were at least five healthcare organizations hit with ransomware within the span of 24 hours.

“I guess it would help if I understood what the baseline is, like how many healthcare organizations get hit with ransomware on average in one week?” I asked the source.

“It’s more like one a day,” the source confided.

A report in February 2022 from Sophos found Conti orchestrated a cyberattack against a Canadian healthcare provider in late 2021. Security software firm Emsisoft found that at least 68 healthcare providers suffered ransomware attacks last year.

While Conti is just one of many ransomware groups threatening the healthcare industry, it seems likely that ransomware attacks on the healthcare sector are underreported. Perhaps this is because a large percentage of victims are paying a ransom demand to keep their data (and news of their breach) confidential. A survey published in February by email security provider Proofpoint found almost 60 percent of victims hit by ransomware paid their extortionists.

Or perhaps it’s because many crime groups have shifted focus away from deploying ransomware and toward stealing data and demanding payment not to publish the information. Conti shames victims who refuse to pay a ransom by posting their internal data on their darkweb blog.

Since the beginning of 2022, Conti has claimed responsibility for hacking a cancer testing lab, a medical prescription service online, a biomedical testing facility, a pharmaceutical company, and a spinal surgery center.

The Healthcare Information and Management Systems Society recently released its 2021 HIMSS Healthcare Cybersecurity Survey (PDF), which interviewed 167 healthcare cybersecurity professionals and found 67 percent had experienced a “significant security incident” in the past year.

The survey also found that just six percent or less of respondent’s information technology budgets were devoted to cybersecurity, although roughly 60 percent of respondents said their cybersecurity budgets would increase in 2022. Last year, just 79 percent of respondents said they’d fully implemented antivirus or other anti-malware systems; only 43 percent reported they’d fully implemented intrusion detection and prevention technologies.

The FBI says Conti typically gains access to victim networks through weaponized malicious email links, attachments, or stolen Remote Desktop Protocol (RDP) credentials, and that it weaponizes Microsoft Office documents with embedded Powershell scripts — initially staging Cobalt Strike via the Office documents and then dropping Emotet onto the network — giving them the ability to deploy ransomware. The FBI said Conti has been observed inside victim networks between four days and three weeks on average before deploying Conti ransomware.

Troystealer malware: What it is, how it works and how to prevent it | Malware spotlight

By Pedro Tavares

We are living in an era where malware is part of our daily lives. Emergent campaigns are increasing, each more sophisticated and harder to detect than the last. Malware can reveal itself through different abnormal behaviors, including a giant wave of annoying ads flooding your screen, your system crashing, blocks or repeatedly showing a BSOD […]

The post Troystealer malware: What it is, how it works and how to prevent it | Malware spotlight appeared first on Infosec Resources.


Troystealer malware: What it is, how it works and how to prevent it | Malware spotlight was first posted on October 15, 2020 at 8:03 am.
©2017 "InfoSec Resources". Use of this feed is for personal non-commercial use only. If you are not reading this article in your feed reader, then the site is guilty of copyright infringement. Please contact me at darren.dalasta@infosecinstitute.com

Fake STOP/DJVU decryptor malware: What it is, how it works and how to prevent it

By Greg Belding

Introduction Imagine a situation where criminals steal access to your property. They offer you a seemingly valid solution in the way of a tool that will give you your access back. But you use that solution and yet you still do not have access? Welcome to the nightmarish world of STOP/DJVU — a ransomware that […]

The post Fake STOP/DJVU decryptor malware: What it is, how it works and how to prevent it appeared first on Infosec Resources.


Fake STOP/DJVU decryptor malware: What it is, how it works and how to prevent it was first posted on October 14, 2020 at 8:00 am.
©2017 "InfoSec Resources". Use of this feed is for personal non-commercial use only. If you are not reading this article in your feed reader, then the site is guilty of copyright infringement. Please contact me at darren.dalasta@infosecinstitute.com

Tycoon malware: What it is, how it works and how to prevent it | Malware spotlight

By Greg Belding

Introduction It has been said that a picture is worth a thousand words. In the world of malware, a picture is worth an infection — in other words, a picture can actually be the malware (ransomware, specifically in this case) that initially infects the compromised machine. This malware is called Tycoon and it uses an […]

The post Tycoon malware: What it is, how it works and how to prevent it | Malware spotlight appeared first on Infosec Resources.


Tycoon malware: What it is, how it works and how to prevent it | Malware spotlight was first posted on October 1, 2020 at 8:03 am.
©2017 "InfoSec Resources". Use of this feed is for personal non-commercial use only. If you are not reading this article in your feed reader, then the site is guilty of copyright infringement. Please contact me at darren.dalasta@infosecinstitute.com
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