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.
Phishing and fraud surges during any national news story. This time though, the activity is both more voluminous and more targeted.
A software engineer hired for an internal IT AI team immediately became an insider threat by loading malware onto his workstation.
The threat group uses its "Stargazers Ghost Network" to star, fork, and watch malicious repos to make them seem legitimate, all to distribute a variety of notorious information-stealers-as-a-service.
Players can only access the game by first joining its Telegram channel, with some going astray in copycat channels with hidden malware.
An exploit sold on an underground forum requires user action to download an unspecified malicious payload.
Newly discovered "FrostyGoop" is the first ICS malware that can communicate directly with operational technology systems via the Modbus protocol.