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.
Luna, Black Basta add to rapidly growing list of malware tools targeted at virtual machines deployed on VMware's bare-metal hypervisor technology.
The CloudMensis spyware, which can lift reams of sensitive information from Apple machines, is the first Mac malware observed to exclusively rely on cloud storage for C2 activities.
A study of the unregulated dark markets shows that the vast majority of malware, exploits, and attacker tools sell for less than $10, giving would-be criminals a fast entry point.
The cyber campaign, aimed at siphoning funds, uses an improved version of the malware, which can adjust infection paths based on recognized antivirus software.
The conventional wisdom that virtual container environments were somehow immune from malware and hackers has been upended.
Tools purporting to help organizations recover lost passwords for PLCs are really droppers for malware targeting industrial control systems, vendor says.