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.
Between July and September, DarkGate malware attacks have used compromised Skype accounts to infect targets through messages containing VBA loader script attachments. [...]
A newly discovered campaign dubbed "Stayin' Alive" has been targeting government organizations and telecommunication service providers across Asia since 2021, using a wide variety of "disposable" malware to evade detection. [...]
A new malware has been posing as a legitimate caching plugin to target WordPress sites, allowing threat actors to create an administrator account and control the site's activity. [...]
A Mirai-based DDoS (distributed denial of service) malware botnet tracked as IZ1H9 has added thirteen new payloads to target Linux-based routers and routers from D-Link, Zyxel, TP-Link, TOTOLINK, and others. [...]
Microsoft is planning to phase out VBScript in future Windows releases after 30 years of use, making it an on-demand feature until it is removed. [...]