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 Israeli company developed highly-targeted, mobile malware that would make any APT jealous.
Images purporting to be of the Armenia and Azerbaijan conflict were malware downloaders in disguise.
Attackers exclusively target Windows users with an impersonation website that distributes information-stealing malware.
A fast-growing cyber campaign solely takes aim at luxury hotel and resort chains, using security-disruptive tactics to spread info-stealing malware.
The Trojan had mainly been infecting banks in Europe since it first surfaced more than one year ago.