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.
Posing as fellow engineers, the North Korean state-sponsored cybercrime group Lazarus tricked crypto-exchange developers into downloading the hard-to-detect malware.
The government-backed APT's new malware framework represents a step up in Iran's cyber sophistication.
The wider availability of turnkey cyberattack kits in the criminal underground is leading to a glut of campaigns using remote access Trojans (RATs)
The APT group uses updates from the app to get the user to download the malware.
An advanced feature of Google targeted ads can allow a rarely precedented flood of malware infections, rendering machines completely useless.