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.
Russian military intelligence-linked hackers are using a new malware called “Authentic Antics” to secretly access Microsoft cloud email accounts, the UK's NCSC reports
Ukraine’s CERT-UA has identified a new AI-powered malware, dubbed “LameHug,” which executes commands on compromised Windows systems in cyber-attacks, targeting the nation’s security and defense sector
A new malware campaign uses GitHub to deliver payloads via Amadey botnet, bypassing email distribution
Cybercriminals are using AI cloaking tools to evade detection, disguising phishing and malware sites
A new malware campaign targeting Hong Kong finance has been identified, featuring SquidLoader to deploy Cobalt Strike Beacon
Socket has identified a new malware loader called XORIndex incorporated into malicious packages published to the npm registry, with over 9000 downloads so far