Tag: windows
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Microsoft Warns of WhatsApp Attachments Spreading Backdoor on Windows PCs
Microsoft warns of a WhatsApp attachments spreading VBS malware that installs backdoors on Windows PCs, giving hackers remote access and control systems. First seen on hackread.com Jump to article: hackread.com/microsoft-whatsapp-attachments-backdoor-windows-pcs/
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Akira-Style Ransomware Campaign Hits Windows Users Across South America
A newly identified ransomware campaign is targeting Windows users across South America, leveraging tactics that closely mimic the notorious Akira ransomware group. According to ESET’s findings, the threat actors behind this campaign are attempting to exploit Akira’s reputation by replicating its branding, ransom notes, and dark web infrastructure references. This includes the use of Tor-based…
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Cyberkriminelle haben bis zu 76 Tage im Jahr freien Zugang zu Unternehmens-PCs in aller Welt
Betriebssystem-Patches auf PCs mit Windows 10/11 kommen durchschnittlich 127 Tage zu spät. Cybervorfälle und KI-gestützte Angriffe verursachen jährlich Verluste in Höhe von 400 Milliarden US-Dollar durch Ausfallzeiten. Nicht mehr die Sicherheitsverletzung selbst ist die schwerwiegendste Folge eines Cybervorfalls, sondern die daraus resultierenden Betriebsstörungen. Das ist die Quintessenz des Resilience Risk Index 2026, den Absolute… First…
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WhatsApp Attack Chain Delivers VBS, Cloud Payloads, MSI Backdoor
A new malware campaign that abuses WhatsApp messages to deliver malicious Visual Basic Script (VBS) files to Windows users, enabling persistent remote access through unsigned MSI installers. The campaign starts with WhatsApp messages carrying VBS attachments that appear benign but execute as scripts when opened on Windows. Once launched, the initial script creates hidden folders…
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Hackers Are Using WhatsApp to Deliver Malware to Windows PCs
Hackers are using WhatsApp messages to deliver malware to Windows PCs, exploiting user trust and attachments to trigger stealthy, multi-stage attacks. The post Microsoft: Hackers Are Using WhatsApp to Deliver Malware to Windows PCs appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-whatsapp-malware-windows-attack/
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WhatsApp on Windows users targeted in new campaign, warns Microsoft
Microsoft warns WhatsApp on Windows users about an ongoing campaign that tries to gain permanent access to your machine First seen on securityboulevard.com Jump to article: securityboulevard.com/2026/04/whatsapp-on-windows-users-targeted-in-new-campaign-warns-microsoft/
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Casbaneiro Phishing Targets Latin America and Europe Using Dynamic PDF Lures
A multi-pronged phishing campaign is targeting Spanish-speaking users in organizations across Latin America and Europe to deliver Windows banking trojans like Casbaneiro (aka Metamorfo) via another malware called Horabot.The activity has been attributed to a Brazilian cybercrime threat actor tracked as Augmented Marauder and Water Saci. The e-crime group was first documented by Trend Micro…
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Microsoft Warns of WhatsApp-Delivered VBS Malware Hijacking Windows via UAC Bypass
Microsoft is calling attention to a new campaign that has leveraged WhatsApp messages to distribute malicious Visual Basic Script (VBS) files.The activity, beginning in late February 2026, leverages these scripts to initiate a multi-stage infection chain for establishing persistence and enabling remote access. It’s currently not known what lures the threat actors use to trick…
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Google Warns of New Chrome Zero-Day Under Active Exploitation Users Urged to Update Immediately
Google has released an urgent security update for its Chrome desktop browser to address 21 vulnerabilities, including a critical zero-day flaw that is actively being exploited in the wild. Users are strongly urged to update their browsers immediately to version 146.0.7680.177/.178 for Windows and Mac, or 146.0.7680.177 for Linux . Active Zero-Day Threat The most…
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Verschlüsselung von Windows – Was ist BitLocker?
First seen on security-insider.de Jump to article: www.security-insider.de/was-ist-bitlocker-a-b24cfac613c4aa6d30ffea427ce75fa2/
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North Korean Hackers Breach Axios Package, Target Windows, macOS, and Linux Systems
A North Koreanexus threat actor has hijacked the popular Axios NPM package in a high”‘impact software supply chain attack that can silently backdoor Windows, macOS, and Linux systems. Between March 31, 2026, 00:21 and 03:20 UTC, attackers used a compromised maintainer account to push backdoored Axios releases 1.14.1 and 0.30.4 to NPM. The attackers changed…
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North Korean Hackers Breach Axios Package, Target Windows, macOS, and Linux Systems
A North Koreanexus threat actor has hijacked the popular Axios NPM package in a high”‘impact software supply chain attack that can silently backdoor Windows, macOS, and Linux systems. Between March 31, 2026, 00:21 and 03:20 UTC, attackers used a compromised maintainer account to push backdoored Axios releases 1.14.1 and 0.30.4 to NPM. The attackers changed…
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Windows 11 Update Fixes Critical Installation Loop Problem
Microsoft has rolled out an urgent, out-of-band update to fix a frustrating installation glitch plaguing Windows 11 users. On March 31, 2026, the company released KB5086672 to rescue devices trapped in an update loop caused by the recent March 26 preview release. When users attempted to install that specific package, their systems would abruptly fail…
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PyPI Telnyx Python SDK Backdoored to Steal Credentials on Windows, macOS, and Linux
Telnyx Python SDK on PyPI, using a multi”‘stage WAV steganography payload to steal credentials across Windows, macOS, and Linux systems. The backdoor lives in telnyx/_client.py and is triggered at module scope, so simply importing telnyx is enough to execute the payload before any application code runs. The rogue releases remained available for roughly 6.5 hours before PyPI quarantined them…
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New Windows 11 emergency update fixes preview update install issues
Microsoft released an emergency update to fix the March 2026 KB5079391 non-security preview update, which was pulled over the weekend due to installation issues. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/new-windows-11-kb5086672-emergency-update-fixes-install-issues/
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Malware detectors trained on one dataset often stumble on another
Machine learning models built to catch malware on Windows systems are typically evaluated on data that closely resembles their training set. In practice, the malware arriving … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/04/01/cross-dataset-malware-detection-research/
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Attackers trojanize Axios HTTP library in highest-impact npm supply chain attack
Tags: ai, attack, breach, cloud, control, credentials, crypto, github, incident response, linux, LLM, macOS, malicious, malware, monitoring, open-source, openai, powershell, pypi, rat, spam, supply-chain, tool, windowspostinstall hook that would execute a dropper script when it was pulled in by a different package as a dependency.Shortly after midnight UTC on March 31 a new version of the Axios package, axios@1.14.1, was published on npm followed by axios@0.30.4 39 minutes later. Both listed plain-crypto-js@4.2.1 as a dependency in their package.json files, but…
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Supply chain attack on Axios npm package: Scope, impact, and remediations
Tags: access, api, attack, breach, cloud, control, credentials, crypto, data, data-breach, defense, exploit, incident response, macOS, malicious, malware, open-source, rat, risk, security-incident, software, supply-chain, theft, threat, vulnerability, windowsThe Axios npm package has been compromised in a supply chain attack that uploaded new versions of the package containing malicious code. Any environment that downloaded these compromised Axios versions is at risk of severe data theft, including the loss of credentials and API keys. Scan your environment now. Key takeaways This incident is a…
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Attackers hijack Axios npm account to spread RAT malware
Threat actors hijacked the npm account of Axios to distribute RAT malware via malicious package updates. Threat actors compromised the npm account of Axios, a widely used library with over 100M weekly downloads, and published malicious versions to spread remote access trojans across Linux, Windows, and macOS. The supply chain attack was identified by multiple…
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Latest Xloader Obfuscation Methods and Network Protocol
Tags: api, automation, breach, cloud, communications, credentials, data, detection, email, encryption, framework, google, Internet, malicious, malware, microsoft, network, password, powershell, software, threat, tool, update, windowsIntroduction Xloader is an information stealing malware family that evolved from Formbook and targets web browsers, email clients, and File Transfer Protocol (FTP) applications. Additionally, Xloader may execute arbitrary commands and download second-stage payloads on an infected system. The author of Xloader continues to update the codebase, with the most recent observed version being 8.7. Since…
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Hackers compromise Axios npm package to drop cross-platform malware
Hackers hijacked the npm account of the Axios package, a JavaScript HTTP client with 100M+ weekly downloads, to deliver remote access trojans to Linux, Windows, and macOS systems. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/hackers-compromise-axios-npm-package-to-drop-cross-platform-malware/
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Windows 11 gets a rebuilt console engine with regex search, Sixel images and a 10x speed boost
Microsoft released Windows 11 Insider Preview Build 29558.1000 to the Canary Channel, part of the optional 29500 build series. The build carries a set of changes focused on … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/03/31/windows-11-console-upgrade-speed-boost/
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Windows Tools Abused to Kill AV Ahead of Ransomware Attacks
Hackers are increasingly turning legitimate Windows administration tools into stealthy weapons to disable antivirus and EDR before launching ransomware, making attacks faster, quieter, and harder to stop. Instead of dropping noisy custom malware upfront, modern operators chain trusted utilities to gain SYSTEM access, kill security processes, and then encrypt at scale. Because many of these…
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Telegram-Based ResokerRAT Adds Screenshot Capture and Persistence
Hackers are deploying a new Windows malware called ResokerRAT, a Telegram”‘based Remote Access Trojan (RAT) that gives attackers stealthy remote control over infected systems. Instead of relying on a traditional command”‘and”‘control (C2) server, ResokerRAT abuses the Telegram Bot API to receive commands and exfiltrate data, blending in with legitimate encrypted traffic. When the user runs Resoker.exe,…
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Russian Hackers Deploy “CTRL” for RDP Hijacking
Russian hackers are using a new remote access toolkit called “CTRL” to silently hijack Remote Desktop Protocol (RDP) sessions via FRP-based reverse tunnels, enabling stealthy, hands-on access to compromised Windows systems. The toolkit blends credential theft, keylogging, and RDP abuse into a cohesive post-exploitation framework that currently flies under the radar of public malware scanners…
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CrySome RAT: Stealthy .NET Malware Adds AV Killer, HVNC Features
CrySome RAT is a newly observed, advanced .NET remote access trojan that combines full”‘featured post”‘exploitation tooling with unusually hardened persistence, AV-killing, and anti”‘removal logic, making it a serious long”‘term threat to Windows environments. The client component (Crysome.Client.exe) communicates with a TCP”‘based C2 operated by CrySome.Server.exe, with debug logging falling back to a Crysome_debug.log path if…
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ClickFix Evades PowerShell Detection via Rundll32 and WebDAV
A new variant of the ClickFix attack technique that shifts execution away from commonly monitored tools like PowerShell and mshta, instead abusing native Windows components such as rundll32.exe and WebDAV. This evolution allows attackers to bypass traditional script-based detection mechanisms, increasing the likelihood of a successful, stealthy compromise. The attack begins similarly to earlier ClickFix…
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Microsoft pulls KB5079391 Windows update over install issues
Microsoft has pulled a buggy Windows 11 non-security preview update to investigate a known issue that triggers 0x80073712 errors during installation. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/microsoft/microsoft-pulls-windows-kb5079391-update-over-0x80073712-install-errors/
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Russian CTRL Toolkit Delivered via Malicious LNK Files Hijacks RDP via FRP Tunnels
Cybersecurity researchers have discovered a remote access toolkit of Russian-origin that’s distributed via malicious Windows shortcut (LNK) files that are disguised as private key folders.The CTRL toolkit, according to Censys, is custom-built using .NET and includes various executables” to facilitate credential phishing, keylogging, Remote Desktop Protocol (RDP) hijacking, and reverse tunneling First seen on thehackernews.com…