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Cybersecurity firm CrowdStrike, which is facing the heat for causing worldwide IT disruptions by pushing out a flawed update to Windows devices, is now warning that threat actors are exploiting the situation to distribute Remcos RAT to its customers in Latin America under the guise of providing a hotfix. The attack chains involve distributing a ZIP archive file named " crowdstrike-hotfix.zip ," which contains a malware loader named Hijack Loader (aka DOILoader or IDAT Loader) that, in turn, launches the Remcos RAT payload. Specifically, the archive file also includes a text file ("instrucciones.txt") with Spanish-language instructions that urges targets to run an executable file ("setup.exe") to recover from the issue. "Notably, Spanish filenames and instructions within the ZIP archive indicate this campaign is likely targeting Latin America-based (LATAM) CrowdStrike customers," the company said , attributing the campaign to a suspected e-...

Cybersecurity researchers have flagged a fresh software supply chain attack targeting the npm registry that has affected more than 40 packages that belong to multiple maintainers. "The compromised versions include a function (NpmModule.updatePackage) that downloads a package tarball, modifies package.json, injects a local script (bundle.js), repacks the archive, and republishes it, enabling automatic trojanization of downstream packages," supply chain security company Socket said . The end goal of the campaign is to search developer machines for secrets using TruffleHog's credential scanner and transmit them to an external server under the attacker's control. The attack is capable of targeting both Windows and Linux systems. The following packages have been identified as impacted by the incident - angulartics2@14.1.2 @ctrl/deluge@7.2.2 @ctrl/golang-template@1.4.3 @ctrl/magnet-link@4.0.4 @ctrl/ngx-codemirror@7.0.2 @ctrl/ngx-csv@6.0.2 @ctrl/ngx-emoji-mart@...

Enterprise communications software maker 3CX on Thursday confirmed that multiple versions of its desktop app for Windows and macOS are affected by a  supply chain attack . The version numbers include  18.12.407 and 18.12.416  for Windows and  18.11.1213, 18.12.402, 18.12.407, and 18.12.416  for macOS. The issue has been assigned the CVE identifier CVE-2023-29059 . The company said it's engaging the services of Google-owned Mandiant to review the incident. In the interim, it's urging its customers of self-hosted and on-premise versions of the software to update to version 18.12.422. "3CX Hosted and StartUP users do not need to update their servers as we will be updating them over the night automatically," 3CX CEO Nick Galea  said  in a blog post. "Servers will be restarted and the new Electron App MSI/DMG will be installed on the server." Evidence available so far points to either a compromise of 3CX's software build pipeline to distribute Windows ...

Cybersecurity company CrowdStrike has published its root cause analysis detailing the Falcon Sensor software update crash that crippled millions of Windows devices globally. The "Channel File 291" incident, as originally highlighted in its Preliminary Post Incident Review (PIR), has been traced back to a content validation issue that arose after it introduced a new Template Type to enable visibility into and detection of novel attack techniques that abuse named pipes and other Windows interprocess communication (IPC) mechanisms. Specifically, it's related to a problematic content update deployed over the cloud, with the company describing it as a "confluence" of several shortcomings that led to a crash – the most prominent of them is a mismatch between the 21 inputs passed to the Content Validator via the IPC Template Type as opposed to the 20 supplied to the Content Interpreter. CrowdStrike said the parameter mismatch was not discovered during "multi...

New evidence amidst the ongoing probe into the  espionage campaign  targeting SolarWinds has uncovered an unsuccessful attempt to compromise cybersecurity firm Crowdstrike and access the company's email. The hacking endeavor was reported to the company by Microsoft's Threat Intelligence Center on December 15, which identified a third-party reseller's Microsoft Azure account to be making "abnormal calls" to Microsoft cloud APIs during a 17-hour period several months ago. The undisclosed affected reseller's Azure account handles Microsoft Office licensing for its Azure customers, including CrowdStrike. Although there was an attempt by unidentified threat actors to read the emails, it was ultimately foiled as the firm does not use Microsoft's Office 365 email service, CrowdStrike  said . The incident comes in the wake of the  supply chain attack  of SolarWinds revealed earlier this month, resulting in the deployment of a covert backdoor (aka "Sunbu...

A North Korean state-sponsored threat actor tracked as  Diamond Sleet  is distributing a trojanized version of a legitimate application developed by a Taiwanese multimedia software developer called CyberLink to target downstream customers via a supply chain attack. "This malicious file is a legitimate CyberLink application installer that has been modified to include malicious code that downloads, decrypts, and loads a second-stage payload," the Microsoft Threat Intelligence team  said  in an analysis on Wednesday. The poisoned file, the tech giant said, is hosted on the update infrastructure owned by the company while also including checks to limit the time window for execution and bypass detection by security products. The campaign is estimated to have impacted over 100 devices across Japan, Taiwan, Canada, and the U.S. Suspicious activity associated with the modified CyberLink installer file was observed as early as October 20, 2023. The links to North Korea ...

The threat actors behind the Medusa ransomware-as-a-service (RaaS) operation have been observed using a malicious driver dubbed ABYSSWORKER as part of a bring your own vulnerable driver ( BYOVD ) attack designed to disable anti-malware tools. Elastic Security Labs said it observed a Medusa ransomware attack that delivered the encryptor by means of a loader packed using a packer-as-a-service (PaaS) called HeartCrypt. "This loader was deployed alongside a revoked certificate-signed driver from a Chinese vendor we named ABYSSWORKER, which it installs on the victim machine and then uses to target and silence different EDR vendors," the company said in a report. The driver in question, "smuol.sys," mimics a legitimate CrowdStrike Falcon driver ("CSAgent.sys"). Dozens of ABYSSWORKER artifacts have been detected on the VirusTotal platform dating from August 8, 2024, to February 25, 2025. All the identified samples are signed using likely stolen, revoked ce...

Users of the CrushFTP enterprise file transfer software are being urged to update to the latest version following the discovery of a security flaw that has come under targeted exploitation in the wild. "CrushFTP v11 versions below 11.1 have a vulnerability where users can escape their VFS and download system files," CrushFTP  said  in an advisory released Friday. "This has been patched in v11.1.0." That said, customers who are operating their CrushFTP instances within a  DMZ  ( demilitarized zone ) restricted environment are protected against the attacks. Simon Garrelou of Airbus CERT has been credited with discovering and reporting the flaw. It has yet to be assigned a CVE identifier. Cybersecurity company CrowdStrike, in a post shared on Reddit, said it has observed an exploit for the flaw being used in the wild in a "targeted fashion." These intrusions are said to have mainly targeted U.S. entities,...

A "highly operational, destructive, and sophisticated nation-state activity group" with ties to North Korea has been weaponizing open source software in their social engineering campaigns aimed at companies around the world since June 2022. Microsoft's threat intelligence teams, alongside LinkedIn Threat Prevention and Defense, attributed the intrusions with high confidence to Zinc, a threat group affiliated with Lazarus which is also tracked under the name Labyrinth Chollima.  Attacks targeted employees in organizations across multiple industries, including media, defense and aerospace, and IT services in the U.S., the U.K., India, and Russia. The tech giant  said  it observed Zinc leveraging a "wide range of open-source software including PuTTY, KiTTY, TightVNC, Sumatra PDF Reader, and muPDF/Subliminal Recording software installer for these attacks." According to  CrowdStrike , Zinc "has been active since 2009 in operations aimed at collecting polit...

As the investigation into the SolarWinds supply-chain attack continues, cybersecurity researchers have disclosed a third malware strain that was deployed into the build environment to inject the backdoor into the company's Orion network monitoring platform. Called " Sunspot ," the malignant tool adds to a growing list of previously disclosed malicious software such as Sunburst and Teardrop. "This highly sophisticated and novel code was designed to inject the Sunburst malicious code into the SolarWinds Orion Platform without arousing the suspicion of our software development and build teams," SolarWinds' new CEO Sudhakar Ramakrishna  explained . While  preliminary evidence  found that operators behind the espionage campaign managed to compromise the software build and code signing infrastructure of SolarWinds Orion platform as early as October 2019 to deliver the Sunburst backdoor, the latest findings reveal a new timeline that establishes the first brea...

Cybersecurity news can sometimes feel like a never-ending horror movie, can't it? Just when you think the villains are locked up, a new threat emerges from the shadows. This week is no exception, with tales of exploited flaws, international espionage, and AI shenanigans that could make your head spin. But don't worry, we're here to break it all down in plain English and arm you with the knowledge you need to stay safe. So grab your popcorn (and maybe a firewall), and let's dive into the latest cybersecurity drama! ⚡ Threat of the Week Critical Fortinet Flaw Comes Under Exploitation: Fortinet revealed that a critical security flaw impacting FortiManager (CVE-2024-47575, CVSS score: 9.8), which allows for unauthenticated remote code execution, has come under active exploitation in the wild. Exactly who is behind it is currently not known. Google-owned Mandiant is tracking the activity under the name UNC5820. 🚢🔐 K...

Microsoft on Tuesday shipped fixes to address a total of 78 security flaws across its software lineup, including a set of five zero-days that have come under active exploitation in the wild. Of the 78 flaws resolved by the tech giant, 11 are rated Critical, 66 are rated Important, and one is rated Low in severity. Twenty-eight of these vulnerabilities lead to remote code execution, 21 of them are privilege escalation bugs, and 16 others are classified as information disclosure flaws. The updates are in addition to eight more security defects patched by the company in its Chromium-based Edge browser since the release of last month's Patch Tuesday update . The five vulnerabilities that have come under active exploitation in the wild are listed below - CVE-2025-30397 (CVSS score: 7.5) - Scripting Engine Memory Corruption Vulnerability CVE-2025-30400 (CVSS score: 7.8) - Microsoft Desktop Window Manager (DWM) Core Library Elevation of Privilege Vulnerability CVE-2025-3270...