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.
Kraken has already spread like wildfire, but in the past few months, the malware's author has been tinkering away, adding more infostealers and backdoors.
Threat actors are infiltrating the increasingly popular collaboration app to attach malicious files to chat threads that drop system-hijacking malware.
Since 2017, the attacker has flung simple off-the-shelf malware in malicious email campaigns aimed at aviation, aerospace, transportation and defense.
35K+ players were exposed to an auto-updater that planted a trojan that choked performance for fellow modders and Colossal Order employees.