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.
The source code of a remote access trojan (RAT) dubbed 'CodeRAT' has been leaked on GitHub after malware analysts confronted the developer about attacks that used the tool. [...]
Cybercriminals using Prynt Stealer to collect data from victims are being swindled by the malware developer, who also receives a copy of the info over Telegram messaging service. [...]
Threat analysts have spotted a new malware campaign dubbed 'GO#WEBBFUSCATOR' that relies on phishing emails, malicious documents, and space images from the James Webb telescope to spread malware. [...]
China-based threat actors have been targeting Australian government agencies and wind turbine fleets in the South China Sea by directing select individuals to a fake impersonating an Australian news media outlet. [...]
A new malware campaign disguised as Google Translate or MP3 downloader programs was found distributing cryptocurrency mining malware across 11 countries. [...]