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.
CISA, FBI, US Treasury warn Kim Jong-un's latest malware has hit healthcare orgs For the past year, state-sponsored hackers operating on behalf of North Korea have been using ransomware called Maui to attack healthcare organizations, US cybersecurity authorities said on Wednesday.…
RaaS malware devs have been busy bees The Hive group, which has become one of the most prolific ransomware-as-a-service (RaaS) operators, has significantly changed its malware, including migrating the code to the Rust programming language and using a more complex encryption technique.…
The fun folk who attacked Solar Winds using a poisoned CV and tools from the murky world of commercial hackware Palo Alto Networks' Unit 42 threat intelligence team has claimed that a piece of malware that 56 antivirus products were unable to detect is evidence that state-backed attackers have found new ways to go about the evil business.…