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 SEO poisoning bot, capable of full system takeover, is actively taking over social media accounts, masquerading as popular games like Temple Run.
Attackers are sending email blasts with malware links in embedded PDFs as a way to evade email filters, lying about having fictional "video evidence."
The overall number of attacks on mobile users is down, but they're getting slicker, both in terms of malware functionality and vectors, researchers say.
Researchers discovered a new, modular banking trojan with ties to Cerberus and Alien that has the capability to become a much larger threat than it is now.