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.
A Chinese hacking group tracked as StormBamboo has compromised an undisclosed internet service provider (ISP) to poison automatic software updates with malware. [...]
A Facebook malvertising campaign targets users searching for AI image editing tools and steals their credentials by tricking them into installing fake apps that mimic legitimate software. [...]
Researchers are warning of threat actors increasingly abusing the Cloudflare Tunnel service in malware campaigns that usually deliver remote access trojans (RATs). [...]
Google has fallen victim to its own ad platform, allowing threat actors to create fake Google Authenticator ads that push the DeerStealer information-stealing malware. [...]
A new Android malware that researchers call 'BingoMod' can wipe devices after successfully stealing money from the victims' bank accounts using the on-device fraud technique. [...]
A malicious campaign targeting Android devices worldwide utilizes thousands of Telegram bots to infect devices with SMS-stealing malware and steal one-time 2FA passwords (OTPs) for over 600 services. [...]
The Black Basta ransomware gang has shown resilience and an ability to adapt to a constantly shifting space, using new custom tools and tactics to evade detection and spread throughout a network. [...]
Google Chrome has added app-bound encryption for better cookie protection on Windows systems and improved defenses against information-stealing malware attacks. [...]