The Malware tag covers malware families, infrastructure analysis, incident impact, disruption efforts, and defensive guidance to reduce cybersecurity risk.
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Background for this topic.
Malware is software intentionally created or modified to perform unauthorized or harmful actions on a computer, device, or network. The term covers distinct families and functions, including viruses, worms, trojans, spyware, botnet clients, and ransomware; a single sample may combine several capabilities. Its behavior—not its label—determines the security concern: it may execute code, persist, alter or encrypt data, steal credentials, or provide unauthorized remote access.
For practitioners, malware reporting is most useful when it identifies the family or tool conservatively and provides evidence such as affected platforms, samples, infrastructure, or observed behavior. Defenses include promptly patching vulnerable software, restricting execution and privileges, monitoring endpoints and networks, maintaining tested backups, and isolating suspected systems for analysis. Detection should use behavior and verified indicators rather than names alone, since variants change. If malware processes personal or regulated data, investigations should also address privacy, evidence preservation, and applicable reporting obligations.
The 'ClearFake' fake browser update campaign has expanded to macOS, targeting Apple computers with Atomic Stealer (AMOS) malware. [...]
The popular Zero2Automated malware analysis and reverse-engineering course has a Black Friday 2023 through Cyber Monday sale, where you can get 25% off sitewide, including gift certificates and courses. [...]
Microsoft says a North Korean hacking group has breached Taiwanese multimedia software company CyberLink and trojanized one of its installers to push malware in a supply chain attack targeting potential victims worldwide. [...]
A new Mirai-based malware botnet named 'InfectedSlurs' has been exploiting two zero-day remote code execution (RCE) vulnerabilities to infect routers and video recorder (NVR) devices. [...]
The Lumma information-stealer malware (aka 'LummaC2') is promoting a new feature that allegedly allows cybercriminals to restore expired Google cookies, which can be used to hijack Google accounts. [...]
The Lumma information-stealer malware (aka 'LummaC2') is promoting a new feature that allegedly allows cybercriminals to restore expired Google cookies, which can be used to hijack Google accounts. [...]
A sophisticated phishing campaign pushing the DarkGate malware infections has recently added the PikaBot malware into the mix, making it the most advanced phishing campaign since the Qakbot operation was dismantled. [...]
A recently discovered worm that researchers call LittleDrifter has been spreading over USB drives infecting systems in multiple countries as part of a campaign from the Gamaredon state-sponsored espionage group. [...]
A new Phobos ransomware variant frames the popular VX-Underground malware-sharing collective, indicating the group is behind attacks using the encryptor. [...]
The Kinsing malware operator is actively exploiting the CVE-2023-46604 critical vulnerability in the Apache ActiveMQ open-source message broker to compromise Linux systems. [...]
The Lumma information-stealing malware is now using an interesting tactic to evade detection by security software - the measuring of mouse movements using trigonometry to determine if the malware is running on a real machine or an antivirus sandbox. [...]