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A China-nexus cyber espionage group has been observed deploying a BSD variant of a known backdoor called BRICKSTORM, as well as two other malware families codenamed PLENET (aka GRIMBOLT) and AGENTPSD to target Linux systems
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
The Iranian hacking group known as MuddyWater has been observed leveraging a new backdoor dubbed UDPGangster that uses the User Datagram Protocol (UDP) for command-and-control (C2) purposes
Malware isn’t just trying to hide anymore—it’s trying to belong. We’re seeing code that talks like us, logs like us, even documents itself like a helpful teammate. Some threats now look more like developer tools than exploits. Others borrow trust from open-source platforms, or quietly build themselves out of AI-written snippets. It’s not just about being malicious—it’s about being believable.
In a twist on typical hiring-related social engineering attacks, the FIN6 hacking group impersonates job seekers to target recruiters, using convincing resumes and phishing sites to deliver malware. [...]
The Chinese threat actor known as FamousSparrow has been linked to a cyber attack targeting a trade group in the United States and a research institute in Mexico to deliver its flagship backdoor SparrowDoor and ShadowPad
MirrorFace Expands Operations, Revives Anel Backdoor for EspionageA threat actor associated with Chinese cyberespionage campaigns against Japan stepped outside its East Asian comfort zone to target a European organization with a refreshed set of hacking tools. A hacking group tracked as MirrorFace and Earth Kasha deployed a backdoor once exclusively used by APT10.
Juniper Networks Urges Immediate Updating and Malware Scans to Block AttackersHackers have been infecting outdated Juniper MX routers with backdoor malware as part of an apparent cyberespionage campaign that traces to a Chinese-affiliated hacking team tracked as UNC 3886, warned Google's Mandiant incident response group.
A Chinese hacking group is hijacking the SSH daemon on network appliances by injecting malware into the process for persistent access and covert operations. [...]
Hackers Targeted a PAN-OS Flaw Days After Its DisclosureA suspected Chinese hacking campaign that began in November is exploiting a vulnerability in Palo Alto firewalls to install a custom malware backdoor for espionage. UNC5325 activity aligns with the Chinese hacking strategy of targeting edge devices.
The China-linked threat actor known as Earth Estries has been observed using a previously undocumented backdoor called GHOSTSPIDER as part of its attacks targeting Southeast Asian telecommunications companies. Trend Micro, which described the hacking group as an aggressive advanced persistent threat (APT), said the intrusions also involved the use of another cross-platform backdoor dubbed
The Chinese state-sponsored hacking group Salt Typhoon has been observed utilizing a new "GhostSpider" backdoor in attacks against telecommunication service providers. [...]
A new Linux backdoor called 'WolfsBane' has been discovered, believed to be a port of Windows malware used by the Chinese 'Gelsemium' hacking group. [...]
The Iranian threat actor known as TA455 has been observed taking a leaf out of a North Korean hacking group's playbook to orchestrate its own version of the Dream Job campaign targeting the aerospace industry by offering fake jobs since at least September 2023
UK's National Cyber Security Centre (NCSC) has published an analysis of a Linux malware named "Pigmy Goat" created to backdoor Sophos XG firewall devices as part of recently disclosed attacks by Chinese threat actors. [...]
The APT33 Iranian hacking group has used new Tickler malware to backdoor the networks of organizations in the government, defense, satellite, oil and gas sectors in the United States and the United Arab Emirates. [...]
The APT33 Iranian hacking group has used new Tickler malware to backdoor the networks of organizations in the government, defense, satellite, oil and gas sectors in the United States and the United Arab Emirates. [...]
Kapeka Shows Similarities to Russian GRU Hacking Group's GreyEnergy MalwareLikely Russian military intelligence hackers known as Sandworm since at least mid-2022 have deployed a new and highly flexible back door against Eastern European targets, warn security researchers. Security firm WithSecure dubs the backdoor "Kapeka."
The WINELOADER backdoor used in recent cyber attacks targeting diplomatic entities with wine-tasting phishing lures has been attributed as the handiwork of a hacking group with links to Russia's Foreign Intelligence Service (SVR), which was responsible for breaching SolarWinds and Microsoft
Latest APT29 Campaign Uses a Previously Unseen Malware BackdoorA Russian hacking group is targeting German political parties as part of a Moscow-backed espionage campaign. The latest APT29 campaign marks the first time the group has been seen targeting political organizations, according to researchers at Mandiant.