Western Digital Confirms Customer Data Stolen by Hackers in March Breach

Digital storage giant Western Digital confirmed that an "unauthorized third party" gained access to its systems and stole personal information belonging to the company's online store customers. "This information included customer names, billing and shipping addresses, email addresses and telephone numbers," the San Jose-based company said in a disclosure last week. "In addition, the database

Wanted Dead or Alive: Real-Time Protection Against Lateral Movement

Just a few short years ago, lateral movement was a tactic confined to top APT cybercrime organizations and nation-state operators. Today, however, it has become a commoditized tool, well within the skillset of any ransomware threat actor. This makes real-time detection and prevention of lateral movement a necessity to organizations of all sizes and across all industries. But the disturbing truth

RTM Locker's First Linux Ransomware Strain Targeting NAS and ESXi Hosts

The threat actors behind RTM Locker have developed a ransomware strain that's capable of targeting Linux machines, marking the group's first foray into the open source operating system. "Its locker ransomware infects Linux, NAS, and ESXi hosts and appears to be inspired by Babuk ransomware's leaked source code," Uptycs said in a new report published Wednesday. "It uses a combination of ECDH on

Microsoft Confirms PaperCut Servers Used to Deliver LockBit and Cl0p Ransomware

Microsoft has confirmed that the active exploitation of PaperCut servers is linked to attacks that are designed to deliver Cl0p and LockBit ransomware families. The tech giant's threat intelligence team is attributing a subset of the intrusions to a financially motivated actor it tracks under the name Lace Tempest (formerly DEV-0950), which overlaps with other hacking groups like FIN11, TA505,

Ransomware Hackers Using AuKill Tool to Disable EDR Software Using BYOVD Attack

Threat actors are employing a previously undocumented "defense evasion tool" dubbed AuKill that's designed to disable endpoint detection and response (EDR) software by means of a Bring Your Own Vulnerable Driver (BYOVD) attack. "The AuKill tool abuses an outdated version of the driver used by version 16.32 of the Microsoft utility, Process Explorer, to disable EDR processes before deploying

Fortra Sheds Light on GoAnywhere MFT Zero-Day Exploit Used in Ransomware Attacks

Fortra, the company behind Cobalt Strike, shed light on a zero-day remote code execution (RCE) vulnerability in its GoAnywhere MFT tool that has come under active exploitation by ransomware actors to steal sensitive data. The high-severity flaw, tracked as CVE-2023-0669 (CVSS score: 7.2), concerns a case of pre-authenticated command injection that could be abused to achieve code execution. The

LockBit Ransomware Now Targeting Apple macOS Devices

Threat actors behind the LockBit ransomware operation have developed new artifacts that can encrypt files on devices running Apple's macOS operating system. The development, which was reported by the MalwareHunterTeam over the weekend, appears to be the first time a big-game ransomware crew has created a macOS-based payload. Additional samples identified by vx-underground show that the macOS

FIN7 and Ex-Conti Cybercrime Gangs Join Forces in Domino Malware Attacks

A new strain of malware developed by threat actors likely affiliated with the FIN7 cybercrime group has been put to use by the members of the now-defunct Conti ransomware gang, indicating collaboration between the two crews. The malware, dubbed Domino, is primarily designed to facilitate follow-on exploitation on compromised systems, including delivering a lesser-known information stealer that

Vice Society Ransomware Using Stealthy PowerShell Tool for Data Exfiltration

Threat actors associated with the Vice Society ransomware gang have been observed using a bespoke PowerShell-based tool to fly under the radar and automate the process of exfiltrating data from compromised networks. "Threat actors (TAs) using built-in data exfiltration methods like [living off the land binaries and scripts] negate the need to bring in external tools that might be flagged by

RTM Locker: Emerging Cybercrime Group Targeting Businesses with Ransomware

Cybersecurity researchers have detailed the tactics of a "rising" cybercriminal gang called "Read The Manual" (RTM) Locker that functions as a private ransomware-as-a-service (RaaS) provider and carries out opportunistic attacks to generate illicit profit. "The 'Read The Manual' Locker gang uses affiliates to ransom victims, all of whom are forced to abide by the gang's strict rules,"

CISA Warns of 5 Actively Exploited Security Flaws: Urgent Action Required

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added five security flaws to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation in the wild. This includes three high-severity flaws in the Veritas Backup Exec Agent software (CVE-2021-27876, CVE-2021-27877, and CVE-2021-27878) that could lead to the execution of privileged commands

Taiwanese PC Company MSI Falls Victim to Ransomware Attack

Taiwanese PC company MSI (short for Micro-Star International) officially confirmed it was the victim of a cyber attack on its systems. The company said it "promptly" initiated incident response and recovery measures after detecting "network anomalies." It also said it alerted law enforcement agencies of the matter. That said, MSI did not disclose any specifics about when the attack took place

Iran-Based Hackers Caught Carrying Out Destructive Attacks Under Ransomware Guise

The Iranian nation-state group known as MuddyWater has been observed carrying out destructive attacks on hybrid environments under the guise of a ransomware operation. That's according to new findings from the Microsoft Threat Intelligence team, which discovered the threat actor targeting both on-premises and cloud infrastructures in partnership with another emerging activity cluster dubbed DEV-

Microsoft Takes Legal Action to Disrupt Cybercriminals' Illegal Use of Cobalt Strike Tool

Microsoft said it teamed up with Fortra and Health Information Sharing and Analysis Center (Health-ISAC) to tackle the abuse of Cobalt Strike by cybercriminals to distribute malware, including ransomware. To that end, the tech giant's Digital Crimes Unit (DCU) revealed that it secured a court order in the U.S. to "remove illegal, legacy copies of Cobalt Strike so they can no longer be used by

Protect Your Company: Ransomware Prevention Made Easy

Every year hundreds of millions of malware attacks occur worldwide, and every year businesses deal with the impact of viruses, worms, keyloggers, and ransomware. Malware is a pernicious threat and the biggest driver for businesses to look for cybersecurity solutions.  Naturally, businesses want to find products that will stop malware in its tracks, and so they search for solutions to do that.

Rorschach Ransomware Emerges: Experts Warn of Advanced Evasion Strategies

Cybersecurity researchers have taken the wraps off a previously undocumented ransomware strain called Rorschach that's both sophisticated and fast. "What makes Rorschach stand out from other ransomware strains is its high level of customization and its technically unique features that have not been seen before in ransomware," Check Point Research said in a new report. "In fact, Rorschach is one

IcedID Malware Shifts Focus from Banking Fraud to Ransomware Delivery

Multiple threat actors have been observed using two new variants of the IcedID malware in the wild with more limited functionality that removes functionality related to online banking fraud. IcedID, also known as BokBot, started off as a banking trojan in 2017. It's also capable of delivering additional malware, including ransomware. "The well-known IcedID version consists of an initial loader

Researchers Shed Light on CatB Ransomware's Evasion Techniques

The threat actors behind the CatB ransomware operation have been observed using a technique called DLL search order hijacking to evade detection and launch the payload. CatB, also referred to as CatB99 and Baxtoy, emerged late last year and is said to be an "evolution or direct rebrand" of another ransomware strain known as Pandora based on code-level similarities. It's worth noting that the use

LockBit 3.0 Ransomware: Inside the Cyberthreat That's Costing Millions

U.S. government agencies have released a joint cybersecurity advisory detailing the indicators of compromise (IoCs) and tactics, techniques, and procedures (TTPs) associated with the notorious LockBit 3.0 ransomware. "The LockBit 3.0 ransomware operations function as a Ransomware-as-a-Service (RaaS) model and is a continuation of previous versions of the ransomware, LockBit 2.0, and LockBit,"

The Prolificacy of LockBit Ransomware

Today, the LockBit ransomware is the most active and successful cybercrime organization in the world. Attributed to a Russian Threat Actor, LockBit has stepped out from the shadows of the Conti ransomware group, who were disbanded in early 2022. LockBit ransomware was first discovered in September 2019 and was previously known as ABCD ransomware because of the ".abcd virus" extension first

IceFire Ransomware Exploits IBM Aspera Faspex to Attack Linux-Powered Enterprise Networks

A previously known Windows-based ransomware strain known as IceFire has expanded its focus to target Linux enterprise networks belonging to several media and entertainment sector organizations across the world. The intrusions entail the exploitation of a recently disclosed deserialization vulnerability in IBM Aspera Faspex file-sharing software (CVE-2022-47986, CVSS score: 9.8), according to

Core Members of DoppelPaymer Ransomware Gang Targeted in Germany and Ukraine

Law enforcement authorities from Germany and Ukraine have targeted suspected core members of a cybercrime group that has been behind large-scale attacks using DoppelPaymer ransomware. The operation, which took place on February 28, 2023, was carried out with support from the Dutch National Police (Politie) and the U.S. Federal Bureau of Investigation (FBI), according to Europol. This encompassed

U.S. Cybersecurity Agency Raises Alarm Over Royal Ransomware's Deadly Capabilities

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released a new advisory about Royal ransomware, which emerged in the threat landscape last year. "After gaining access to victims' networks, Royal actors disable antivirus software and exfiltrate large amounts of data before ultimately deploying the ransomware and encrypting the systems," CISA said. The custom ransomware

PureCrypter Malware Targets Government Entities in Asia-Pacific and North America

Government entities in Asia-Pacific and North America are being targeted by an unknown threat actor with an off-the-shelf malware downloader known as PureCrypter to deliver an array of information stealers and ransomware. "The PureCrypter campaign uses the domain of a compromised non-profit organization as a command-and-control (C2) to deliver a secondary payload," Menlo Security researcher

How to Detect New Threats via Suspicious Activities

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'

ESXiArgs Ransomware Hits Over 500 New Targets in European Countries

More than 500 hosts have been newly compromised en masse by the ESXiArgs ransomware strain, most of which are located in France, Germany, the Netherlands, the U.K., and Ukraine. The findings come from attack surface management firm Censys, which discovered "two hosts with strikingly similar ransom notes dating back to mid-October 2022, just after ESXi versions 6.5 and 6.7 reached end of life."

Financially Motivated Threat Actor Strikes with New Ransomware and Clipper Malware

A new financially motivated campaign that commenced in December 2022 has seen the unidentified threat actor behind it deploying a novel ransomware strain dubbed MortalKombat and a clipper malware known as Laplas. Cisco Talos said it "observed the actor scanning the internet for victim machines with an exposed remote desktop protocol (RDP) port 3389." The attacks, per the cybersecurity company,

A CISOs Practical Guide to Storage and Backup Ransomware Resiliency

One thing is clear. The "business value" of data continues to grow, making it an organization's primary piece of intellectual property. From a cyber risk perspective, attacks on data are the most prominent threat to organizations.  Regulators, cyber insurance firms, and auditors are paying much closer attention to the integrity, resilience, and recoverability of organization data – as well as

New ESXiArgs Ransomware Variant Emerges After CISA Releases Decryptor Tool

After the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a decryptor for affected victims to recover from ESXiArgs ransomware attacks, the threat actors have bounced back with an updated version that encrypts more data. The emergence of the new variant was reported by a system administrator on an online forum, where another participant stated that files larger than 128MB

North Korean Hackers Targeting Healthcare with Ransomware to Fund its Operations

State-backed hackers from North Korea are conducting ransomware attacks against healthcare and critical infrastructure facilities to fund illicit activities, U.S. and South Korean cybersecurity and intelligence agencies warned in a joint advisory. The attacks, which demand cryptocurrency ransoms in exchange for recovering access to encrypted files, are designed to support North Korea's

3 Overlooked Cybersecurity Breaches

Here are three of the worst breaches, attacker tactics and techniques of 2022, and the security controls that can provide effective, enterprise security protection for them. #1: 2 RaaS Attacks in 13 Months Ransomware as a service is a type of attack in which the ransomware software and infrastructure are leased out to the attackers. These ransomware services can be purchased on the dark web from

U.K. and U.S. Sanction 7 Russians for TrickBot, Ryuk, and Conti Ransomware Attacks

In a first-of-its-kind coordinated action, the U.K. and U.S. governments on Thursday levied sanctions against seven Russian nationals for their affiliation to the TrickBot, Ryuk, and Conti cybercrime operation. The individuals designated under sanctions are Vitaly Kovalev (aka Alex Konor, Bentley, or Bergen), Maksim Mikhailov (aka Baget), Valentin Karyagin (aka Globus), Mikhail Iskritskiy (aka

Russian Hacker Pleads Guilty to Money Laundering Linked to Ryuk Ransomware

A Russian national on February 7, 2023, pleaded guilty in the U.S. to money laundering charges and for attempting to conceal the source of funds obtained in connection with Ryuk ransomware attacks. Denis Mihaqlovic Dubnikov, 30, was arrested in Amsterdam in November 2021 before he was extradited from the Netherlands in August 2022. He is awaiting sentencing on April 11, 2023. "Between at least

Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

The first-ever Linux variant of the Clop ransomware has been detected in the wild, but with a faulty encryption algorithm that has made it possible to reverse engineer the process. "The ELF executable contains a flawed encryption algorithm making it possible to decrypt locked files without paying the ransom," SentinelOne researcher Antonis Terefos said in a report shared with The Hacker News.

VMware Finds No Evidence of 0-Day in Ongoing ESXiArgs Ransomware Spree

VMware on Monday said it found no evidence that threat actors are leveraging an unknown security flaw, i.e., a zero-day, in its software as part of an ongoing ransomware attack spree worldwide. "Most reports state that End of General Support (EoGS) and/or significantly out-of-date products are being targeted with known vulnerabilities which were previously addressed and disclosed in VMware

New Wave of Ransomware Attacks Exploiting VMware Bug to Target ESXi Servers

VMware ESXi hypervisors are the target of a new wave of attacks designed to deploy ransomware on compromised systems. "These attack campaigns appear to exploit CVE-2021-21974, for which a patch has been available since February 23, 2021," the Computer Emergency Response Team (CERT) of France said in an advisory on Friday. VMware, in its own alert released at the time, described the issue as an 

Hive Ransomware Infrastructure Seized in Joint International Law Enforcement Effort

In what's a case of hacking the hackers, the darknet infrastructure associated with the Hive ransomware-as-a-service (RaaS) operation has been seized as part of a coordinated law enforcement effort involving 13 countries. "Law enforcement identified the decryption keys and shared them with many of the victims, helping them regain access to their data without paying the cybercriminals," Europol 

Bitzlato Crypto Exchange Founder Arrested for Aiding Cybercriminals

The U.S. Department of Justice (DoJ) on Wednesday announced the arrest of Anatoly Legkodymov (aka Gandalf and Tolik), the cofounder of Hong Kong-registered cryptocurrency exchange Bitzlato, for allegedly processing $700 million in illicit funds. The 40-year-old Russian national, who was arrested in Miami, was charged in a U.S. federal court with "conducting a money transmitting business that

New Analysis Reveals Raspberry Robin Can be Repurposed by Other Threat Actors

A new analysis of Raspberry Robin's attack infrastructure has revealed that it's possible for other threat actors to repurpose the infections for their own malicious activities, making it an even more potent threat. Raspberry Robin (aka QNAP worm), attributed to a threat actor dubbed DEV-0856, is a malware that has increasingly come under the radar for being used in attacks aimed at finance,

Microsoft Reveals Tactics Used by 4 Ransomware Families Targeting macOS

Microsoft has shed light on four different ransomware families – KeRanger, FileCoder, MacRansom, and EvilQuest – that are known to impact Apple macOS systems. "While these malware families are old, they exemplify the range of capabilities and malicious behavior possible on the platform," the tech giant's Security Threat Intelligence team said in a Thursday report. The initial vector for these

Rackspace Confirms Play Ransomware Gang Responsible for Recent Breach

Cloud services provider Rackspace on Thursday confirmed that the ransomware gang known as Play was responsible for last month's breach. The security incident, which took place on December 2, 2022, leveraged a previously unknown security exploit to gain initial access to the Rackspace Hosted Exchange email environment. "This zero-day exploit is associated with CVE-2022-41080," the Texas-based

The FBI's Perspective on Ransomware

Ransomware: contemporary threats, how to prevent them and how the FBI can help In April 2021, Dutch supermarkets faced a food shortage. The cause wasn't a drought or a sudden surge in the demand for avocados. Rather, the reason was a ransomware attack. In the past years, companies, universities, schools, medical facilities and other organizations have been targeted by ransomware threat actors,

Vice Society Ransomware Attackers Adopt Robust Encryption Methods

The Vice Society ransomware actors have switched to yet another custom ransomware payload in their recent attacks aimed at a variety of sectors. "This ransomware variant, dubbed 'PolyVice,' implements a robust encryption scheme, using NTRUEncrypt and ChaCha20-Poly1305 algorithms," SentinelOne researcher Antonio Cocomazzi said in an analysis. Vice Society, which is tracked by Microsoft under the

FIN7 Cybercrime Syndicate Emerges as a Major Player in Ransomware Landscape

An exhaustive analysis of FIN7 has unmasked the cybercrime syndicate's organizational hierarchy, alongside unraveling its role as an affiliate for mounting ransomware attacks. It has also exposed deeper associations between the group and the larger threat ecosystem comprising the now-defunct ransomware DarkSide, REvil, and LockBit families. The highly active threat group, also known as Carbanak,

Raspberry Robin Worm Strikes Again, Targeting Telecom and Government Systems

The Raspberry Robin worm has been used in attacks against telecommunications and government office systems across Latin America, Australia, and Europe since at least September 2022. "The main payload itself is packed with more than 10 layers for obfuscation and is capable of delivering a fake payload once it detects sandboxing and security analytics tools," Trend Micro researcher Christopher So 

Ransomware Hackers Using New Way to Bypass MS Exchange ProxyNotShell Mitigations

Threat actors affiliated with a ransomware strain known as Play are leveraging a never-before-seen exploit chain that bypasses blocking rules for ProxyNotShell flaws in Microsoft Exchange Server to achieve remote code execution (RCE) through Outlook Web Access (OWA). "The new exploit method bypasses URL rewrite mitigations for the Autodiscover endpoint," CrowdStrike researchers Brian Pitchford,

Cybercrime (and Security) Predictions for 2023

Threat actors continue to adapt to the latest technologies, practices, and even data privacy laws—and it's up to organizations to stay one step ahead by implementing strong cybersecurity measures and programs.  Here's a look at how cybercrime will evolve in 2023 and what you can do to secure and protect your organization in the year ahead.  Increase in digital supply chain attacks  With the

New Agenda Ransomware Variant, Written in Rust, Aiming at Critical Infrastructure

A Rust variant of a ransomware strain known as Agenda has been observed in the wild, making it the latest malware to adopt the cross-platform programming language after BlackCat, Hive, Luna, and RansomExx. Agenda, attributed to an operator named Qilin, is a ransomware-as-a-service (RaaS) group that has been linked to a spate of attacks primarily targeting manufacturing and IT industries across

Ransomware Attackers Use Microsoft-Signed Drivers to Gain Access to Systems

Microsoft on Tuesday disclosed it took steps to implement blocking protections and suspend accounts that were used to publish malicious drivers that were certified by its Windows Hardware Developer Program. The tech giant said its investigation revealed the activity was restricted to a number of developer program accounts and that no further compromise was detected. Cryptographically signing

Cybersecurity Experts Uncover Inner Workings of Destructive Azov Ransomware

Cybersecurity researchers have published the inner workings of a new wiper called Azov Ransomware that's deliberately designed to corrupt data and "inflict impeccable damage" to compromised systems. Distributed through another malware loader known as SmokeLoader, the malware has been described as an "effective, fast, and unfortunately unrecoverable data wiper," by Israeli cybersecurity company

Malware Strains Targeting Python and JavaScript Developers Through Official Repositories

An active malware campaign is targeting the Python Package Index (PyPI) and npm repositories for Python and JavaScript with typosquatted and fake modules that deploy a ransomware strain, marking the latest security issue to affect software supply chains. The typosquatted Python packages all impersonate the popular requests library: dequests, fequests, gequests, rdquests, reauests, reduests,

Royal Ransomware Threat Takes Aim at U.S. Healthcare System

The U.S. Department of Health and Human Services (HHS) has cautioned of ongoing Royal ransomware attacks targeting healthcare entities in the country. "While most of the known ransomware operators have performed Ransomware-as-a-Service, Royal appears to be a private group without any affiliates while maintaining financial motivation as their goal," the agency's Health Sector Cybersecurity

Iranian Hackers Strike Diamond Industry with Data-Wiping Malware in Supply-Chain Attack

An Iranian advanced persistent threat (APT) actor known as Agrius has been attributed as behind a set of data wiper attacks aimed at diamond industries in South Africa, Israel, and Hong Kong. The wiper, referred to as Fantasy by ESET, is believed to have been delivered via a supply-chain attack targeting an Israeli software suite developer as part of a campaign that began in February 2022.

Vice Society Ransomware Attackers Targeted Dozens of Schools in 2022

The Vice Society cybercrime group has disproportionately targeted educational institutions, accounting for 33 victims in 2022 and surpassing other ransomware families like LockBit, BlackCat, BianLian, and Hive. Other prominent industry verticals targeted include healthcare, governments, manufacturing, retail, and legal services, according to an analysis of leak site data by Palo Alto Networks

Understanding NIST CSF to assess your organization's Ransomware readiness

Ransomware attacks keep increasing in volume and impact largely due to organizations' weak security controls. Mid-market companies are targeted as they possess a significant amount of valuable data but lack the level of protective controls and staffing of larger organizations. According to a recent RSM survey, 62% of mid-market companies believe they are at risk of ransomware in the next 12

Open Source Ransomware Toolkit Cryptonite Turns Into Accidental Wiper Malware

A version of an open source ransomware toolkit called Cryptonite has been observed in the wild with wiper capabilities due to its "weak architecture and programming." Cryptonite, unlike other ransomware strains, is not available for sale on the cybercriminal underground, and was instead offered for free by an actor named CYBERDEVILZ until recently through a GitHub repository. The source code and

Russian Courts Targeted by New CryWiper Data Wiper Malware Posing as Ransomware

A new data wiper malware called CryWiper has been found targeting Russian government agencies, including mayor's offices and courts. "Although it disguises itself as a ransomware and extorts money from the victim for 'decrypting' data, [it] does not actually encrypt, but purposefully destroys data in the affected system," Kaspersky researchers Fedor Sinitsyn and Janis Zinchenko said in a

Cuba Ransomware Extorted Over $60 Million in Ransom Fees from More than 100 Entities

The threat actors behind Cuba (aka COLDDRAW) ransomware have received more than $60 million in ransom payments and compromised over 100 entities across the world as of August 2022. In a new advisory shared by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI), the agencies highlighted a "sharp increase in both the number of compromised

Russia-based RansomBoggs Ransomware Targeted Several Ukrainian Organizations

Ukraine has come under a fresh onslaught of ransomware attacks that mirror previous intrusions attributed to the Russia-based Sandworm nation-state group. Slovak cybersecurity company ESET, which dubbed the new ransomware strain RansomBoggs, said the attacks against several Ukrainian entities were first detected on November 21, 2022. "While the malware written in .NET is new, its deployment is

New RansomExx Ransomware Variant Rewritten in the Rust Programming Language

The operators of the RansomExx ransomware have become the latest to develop a new variant fully rewritten in the Rust programming language, following other strains like BlackCat, Hive, and Luna. The latest version, dubbed RansomExx2 by the threat actor known as Hive0091 (aka DefrayX), is primarily designed to run on the Linux operating system, although it's expected that a Windows version will