Tag: backdoor
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Vidar Stealer Campaign Evades EDR to Steal Credentials
A new Vidar Stealer campaign is abusing trusted tools, multi”‘stage loaders, and heavy obfuscation to bypass EDR visibility and steal credentials from infected systems silently. This operation shows a clear shift toward “living”‘off”‘the”‘land” techniques and stealthy backdoor architectures that make traditional signature”‘based defenses almost useless. The campaign starts with spear”‘phishing emails that contain compressed archives,…
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Vidar Stealer Campaign Evades EDR to Steal Credentials
A new Vidar Stealer campaign is abusing trusted tools, multi”‘stage loaders, and heavy obfuscation to bypass EDR visibility and steal credentials from infected systems silently. This operation shows a clear shift toward “living”‘off”‘the”‘land” techniques and stealthy backdoor architectures that make traditional signature”‘based defenses almost useless. The campaign starts with spear”‘phishing emails that contain compressed archives,…
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Google Says Hackers Used AI to Develop a Zero-Day Exploit
Google researchers say hackers used AI to develop zero-day exploits, Android backdoors, and automated supply chain attacks targeting GitHub and PyPI. First seen on hackread.com Jump to article: hackread.com/google-hackers-used-ai-develop-zero-day-exploit/
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cPanel CVE-2026-41940 Under Active Exploitation to Deploy Filemanager Backdoor
A threat actor named Mr_Rot13 has been attributed to the exploitation of a recently disclosed critical cPanel flaw to deploy a backdoor codenamed Filemanager on compromised environments.The attack exploits CVE-2026-41940, a vulnerability impacting cPanel and WebHost Manager (WHM) that could result in an authentication bypass and allow remote attackers to gain elevated control of the…
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Fake Claude Campaign Uses PlugX-Style DLL Sideloading Chain
Hackers are abusing a fake Claude AI download site to deliver a PlugX”‘style DLL sideloading chain that ultimately deploys a new Windows backdoor dubbed “Beagle.” The campaign blends malvertising, a trojanized installer, and signed security software components to achieve stealthy persistence and remote control. Attackers registered claude-pro[.]com, a site that visually imitates Anthropic’s legitimate Claude…
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Hackers Use Fake Claude AI Site to Infect Users With New Beagle Malware
Researchers have discovered a new malvertising campaign using a fake Claude AI website to plant a new, undocumented backdoor named Beagle on user devices. First seen on hackread.com Jump to article: hackread.com/hackers-fake-claude-ai-site-infect-beagle-malware/
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Fake Claude AI Site Drops Beagle Backdoor on Windows Users
Sophos finds fake Claude site spreading DonutLoader and a new Beagle backdoor via DLL sideloading First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/fake-claude-site-beagle-backdoor/
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Fake Claude AI website delivers new ‘Beagle’ Windows malware
A fake version for the Claude AI website offers a malicious Claude-Pro Relay download that pushes a previously undocumented backdoor for Windows named Beagle. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/fake-claude-ai-website-delivers-new-beagle-windows-malware/
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UAT-8302 Targets Government Agencies With Custom Malware and Open-Source Tools
A new China-linked hacking group, tracked as UAT-8302, that is using custom malware and open-source tools to spy on government organizations in South America and southeastern Europe. The campaign focuses on long-term access and data theft, combining advanced backdoors like NetDraft and CloudSorcerer with aggressive network reconnaissance and credential theft. Researchers assess with high confidence…
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Attackers compromised Daemon Tools software to deliver backdoors
Kaspersky researchers uncovered another supply chain compromise involving a popular Windows tool: Daemon Tools, an app for mounting disk image files as virtual drives that is … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/05/06/daemon-tools-compromised-backdoors-supply-chain-attack/
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New malware turns Linux systems into P2P attack networks
Persistence through rootkits and PAM backdoors: The researchers also wrote of QLNX’s use of rootkits and Linux Pluggable Authentication Modules (PAM) to establish long term persistence. According to Trend Micro, the malware leverages rootkit functionality to conceal malicious activity, processes, and components from administrative tools and security monitoring systems.The malware was also observed tampering with…
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Ein falsches Spiel: ScarCruft kompromittiert Spieleplattform in einer Supply-Chain-Attacke
ESET-Forscher haben einen anhaltenden Angriff der APT-Gruppe ScarCruft aufgedeckt, der Windows- und Android-Spiele mit Backdoors gegen Bewohner der chinesischen Region Yanbian einsetzt. First seen on welivesecurity.com Jump to article: www.welivesecurity.com/de/eset-research/ein-falsches-spiel-scarcruft-kompromittiert-spieleplattform-in-einer-supply-chain-attacke/
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North Korean hackers targeted ethnic Koreans in China with Android ‘BirdCall’ malware
Researchers at cybersecurity firm ESET attributed the campaign to APT37 and said the hackers used a backdoor attached to a suite of card games from a company called Sqgame. First seen on therecord.media Jump to article: therecord.media/north-korean-hackers-target-ethnic-koreans-in-china
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New stealthy Quasar Linux malware targets software developers
A previously undocumented Linux implant named Quasar Linux (QLNX) is targeting developers’ systems with a mix of rootkit, backdoor, and credential-stealing capabilities. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/new-stealthy-quasar-linux-malware-targets-software-developers/
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DAEMON Tools trojanized in supply-chain attack to deploy backdoor
Hackers trojanized installers for the DAEMON Tools software and since April 8, delivered a backdoor to thousands of systems that downloaded the product from the official website. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/daemon-tools-trojanized-in-supply-chain-attack-to-deploy-backdoor/
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DAEMON Tools trojanized in supply-chain attack to deploy backdoor
Hackers trojanized installers for the DAEMON Tools software and since April 8, delivered a backdoor to thousands of systems that downloaded the product from the official website. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/daemon-tools-trojanized-in-supply-chain-attack-to-deploy-backdoor/
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DAEMON Tools trojanized in supply-chain attack to deploy backdoor
Hackers trojanized installers for the DAEMON Tools software and since April 8, delivered a backdoor to thousands of systems that downloaded the product from the official website. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/daemon-tools-trojanized-in-supply-chain-attack-to-deploy-backdoor/
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Kaspersky suspects Chinese hackers planted a backdoor into Daemon Tools in ‘widespread’ attack
The cybersecurity company says it’s seen thousands of infection attempts, and at least a dozen successful hacks after users installed malicious versions of the popular Windows software. First seen on techcrunch.com Jump to article: techcrunch.com/2026/05/05/kaspersky-suspects-chinese-hackers-planted-a-backdoor-into-daemon-tools-in-widespread-attack/
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ScarCruft Targets Gaming Platform With Windows, Android Backdoors
A sophisticated multiplatform supply-chain attack orchestrated by the North Korea-aligned APT group ScarCruft, targeting ethnic Koreans in China’s Yanbian region through a compromised gaming platform. The attack, believed to have been ongoing since late 2024, weaponized both Windows and Android components of sqgame[.]net, a video game platform that hosts traditional Yanbian-themed card and board games.…
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Silver Fox Uses Fake Tax Notices to Drop ValleyRAT and ABCDoor Backdoor
Silver Fox is running a tax”‘themed phishing campaign that abuses fake notices from Indian and Russian tax authorities to drop ValleyRAT and a new Python backdoor dubbed ABCDoor, using a customized RustSL loader to evade detection and enforce strict geofencing controls. The campaign shows how the group is steadily evolving from commodity RAT delivery to…
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ScarCruft Hacks Gaming Platform to Deploy BirdCall Malware on Android and Windows
The North Korea-aligned state-sponsored hacking group known as ScarCruft has compromised a video game platform in a supply chain espionage attack, trojanizing its components with a backdoor called BirdCallto likely target ethnic Koreans residing in China.While prior versions of the backdoor have primarily targeted Windows users only, the supply chain attack is assessed to have…
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ScarCruft hackers push BirdCall Android malware via game platform
The North Korean hacker group APT37 has been delivering an Android version of a backdoor called BirdCall in a supply-chain attack through a video game platform. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/scarcruft-hackers-push-birdcall-android-malware-via-game-platform/
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Silver Fox Springs Tax-Themed Attacks on Orgs in India, Russia
More than 1,600 socially engineered messages from the China-backed advanced persistent threat (APT) group target various sectors to deliver the previously undocumented ABCDoor backdoor, ValleyRAT, and other malware. First seen on darkreading.com Jump to article: www.darkreading.com/endpoint-security/silver-fox-tax-themed-attacks-india-russia
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45,000 Attacks, 5,300+ Backdoors Tied to China-Linked Cybercrime Operation
SOCRadar researchers have uncovered a massive Chinese cybercrime operation using the OpenClaw and Paperclip systems to automate global attacks. First seen on hackread.com Jump to article: hackread.com/45k-attacks-53k-backdoor-china-cybercrime-operation/
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New Deep#Door RAT uses stealth and persistence to target Windows
Deep#Door hides a Python RAT inside a batch file, kills Windows defenses, survives via multiple persistence methods, and exfiltrates data through a public TCP tunnel. Security researchers at Securonix uncovered a sophisticated malware campaign called Deep#Door. Threat actors employed a stealthy Python-based backdoor that uses a surprisingly simple delivery method to achieve deep, persistent access…
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Deep#Door Python Backdoor Evades Detection On Windows
Deep#Door Python RAT uses tunneling and obfuscation to evade detection and steal credentials First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/deepdoor-python-backdoor-windows/
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New Python Backdoor Uses Tunneling Service to Steal Browser and Cloud Credentials
Cybersecurity researchers have disclosed details of a stealthy Python-based backdoor framework called DEEP#DOOR that comes with capabilities to establish persistent access and harvest a wide range of sensitive information from compromised hosts.”The intrusion chain begins with execution of a batch script (‘install_obf.bat’) that disables Windows security controls, dynamically extracts an First seen on thehackernews.com Jump…
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Beliebtes WordPress-Plugin versteckte jahrelang eine Hintertür
Das WordPress-Plugin Quick Page/Post Redirect mit 70.000 Installationen enthielt über fünf Jahre eine geheime Backdoor für SEO-Spam. Experten warnen vor unkontrollierten Code-Injektionen. First seen on it-daily.net Jump to article: www.it-daily.net/it-sicherheit/cybercrime/wordpress-plugin-hintertuer
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Beliebtes WordPress-Plugin versteckte jahrelang eine Hintertür
Das WordPress-Plugin Quick Page/Post Redirect mit 70.000 Installationen enthielt über fünf Jahre eine geheime Backdoor für SEO-Spam. Experten warnen vor unkontrollierten Code-Injektionen. First seen on it-daily.net Jump to article: www.it-daily.net/it-sicherheit/cybercrime/wordpress-plugin-hintertuer
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Beliebtes WordPress-Plugin versteckte jahrelang eine Hintertür
Das WordPress-Plugin Quick Page/Post Redirect mit 70.000 Installationen enthielt über fünf Jahre eine geheime Backdoor für SEO-Spam. Experten warnen vor unkontrollierten Code-Injektionen. First seen on it-daily.net Jump to article: www.it-daily.net/it-sicherheit/cybercrime/wordpress-plugin-hintertuer