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.
Security researchers have noticed a new malicious spam campaign that delivers the 'Matanbuchus' malware to drop Cobalt Strike beacons on compromised machines. [...]
Security researchers have noticed a new malicious spam campaign that delivers the 'Matanbuchus' malware to drop Cobalt Strike beacons on compromised machines. [...]
The U.S. Department of Justice has announced the disruption of the Russian RSocks malware botnet used to hijack millions of computers, Android smartphones, and IoT (Internet of Things) devices worldwide for use as proxy servers. [...]
Threat analysts have discovered a new Android malware strain named MaliBot, which poses as a cryptocurrency mining app or the Chrome web browser to target users in Italy and Spain. [...]
Cybersecurity researchers have discovered adware and information-stealing malware on the Google Play Store last month, with at least five still available and having amassed over two million downloads. [...]
The Gallium state-sponsored hacking group has been spotted using a new 'PingPull' remote access trojan against financial institutions and government entities in Europe, Southeast Asia, and Africa. [...]
A new rootkit malware named 'Syslogk' has been spotted in the wild, and it features advanced process and file hiding techniques that make detection highly unlikely. [...]