The Malware tag covers malware families, infrastructure analysis, incident impact, disruption efforts, and defensive guidance to reduce cybersecurity risk.
Search across headline titles and summaries.
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.
"Spinning YARN" cyberattackers wielding a Linux webshell are positioning for broader cloud compromise by exploiting common misconfigurations and a known Atlassian Confluence bug.
North Korea's latest espionage tool is tough to pin down, with random generators that throw detection mechanisms off its scent. The DPRK is using the recent critical bugs in ConnectWise ScreenConnect, a remote desktop tool, to deliver the bug.
A newly developed PLC malware does not require physical access to target an ICS environment, is mostly platform neutral, and is more resilient than traditional malware aimed at critical infrastructure.
35 years after the Morris worm, we're still dealing with a version of the same issue: data overlapping with control.