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 threat actors behind the SocGholish malware have been observed leveraging Traffic Distribution Systems (TDSs) like Parrot TDS and Keitaro TDS to filter and redirect unsuspecting users to sketchy content
Cybersecurity researchers have discovered a set of 11 malicious Go packages that are designed to download additional payloads from remote servers and execute them on both Windows and Linux systems
Microsoft on Tuesday announced an autonomous artificial intelligence (AI) agent that can analyze and classify software without assistance in an effort to advance malware detection efforts
The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of cyber attacks carried out by a threat actor called UAC-0099 targeting government agencies, the defense forces, and enterprises of the defense-industrial complex in the country
A combination of propagation methods, narrative sophistication, and evasion techniques enabled the social engineering tactic known as ClickFix to take off the way it did over the past year, according to new findings from Guardio Labs
Cybersecurity researchers have lifted the veil on a widespread malicious campaign that's targeting TikTok Shop users globally with an aim to steal credentials and distribute trojanized apps
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.
Cybersecurity researchers have discovered a nascent Android remote access trojan (RAT) called PlayPraetor that has infected more than 11,000 devices, primarily across Portugal, Spain, France, Morocco, Peru, and Hong Kong