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.
A suspected Pakistan-based threat actor has been linked to a cyber espionage campaign targeting Indian government entities in 2024
The threat actor known as Arid Viper has been attributed to a mobile espionage campaign that leverages trojanized Android apps to deliver a spyware strain dubbed AridSpy
Threat actors with ties to Pakistan have been linked to a long-running malware campaign dubbed Operation Celestial Force since at least 2018
The nascent malware known as SSLoad is being delivered by means of a previously undocumented loader called PhantomLoader, according to findings from cybersecurity firm Intezer
A previously undocumented cross-platform malware codenamed Noodle RAT has been put to use by Chinese-speaking threat actors either for espionage or cybercrime for years
Cybersecurity researchers have uncovered an updated version of malware called ValleyRAT that's being distributed as part of a new campaign
Cybersecurity researchers have spotted a phishing attack distributing the More_eggs malware by masquerading it as a resume, a technique originally detected more than two years ago