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.
Threat actors affiliated with North Korea have been observed leveraging LinkedIn as a way to target developers as part of a fake job recruiting operation
A recently disclosed security flaw in OSGeo GeoServer GeoTools has been exploited as part of multiple campaigns to deliver cryptocurrency miners, botnet malware such as Condi and JenX, and a known backdoor called SideWalk
Threat actors are likely employing a tool designated for red teaming exercises to serve malware, according to new findings from Cisco Talos
The Chinese-speaking threat actor known as Earth Lusca has been observed using a new backdoor dubbed KTLVdoor as part of a cyber attack targeting an unnamed trading company based in China
A new malware campaign is spoofing Palo Alto Networks' GlobalProtect VPN software to deliver a variant of the WikiLoader (aka WailingCrab) loader by means of a search engine optimization (SEO) campaign
Mobile users in Brazil are the target of a new malware campaign that delivers a new Android banking trojan named Rocinante
Roblox developers are the target of a persistent campaign that seeks to compromise systems through bogus npm packages, once again underscoring how threat actors continue to exploit the trust in the open-source ecosystem to deliver malware