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 Glupteba malware botnet has sprung back into action, infecting devices worldwide after its operation was disrupted by Google almost a year ago. [...]
A new cross-platform malware botnet named 'MCCrash' is infecting Windows, Linux, and IoT devices to conduct distributed denial of service attacks on Minecraft servers. [...]
A hacking group tracked as MirrorFace has been targeting Japanese politicians for weeks before the House of Councilors election in July 2022, using a previously undocumented credentials stealer named 'MirrorStealer.' [...]
QBot malware phishing campaigns have adopted a new distribution method using SVG files to perform HTML smuggling that locally creates a malicious installer for Windows. [...]
The dark web is getting darker as cybercrime gangs increasingly shop their malware, phishing, and ransomware tools on illegal cybercrime markets. [...]
A new Go-based botnet malware named 'GoTrim' is scanning the web for self-hosted WordPress websites and attempting to brute force the administrator's password and take control of the site. [...]
A previously undocumented Python backdoor targeting VMware ESXi servers has been spotted, enabling hackers to execute commands remotely on a compromised system. [...]
Security researchers have noticed a spike in devices infected with the TrueBot malware downloader created by a Russian-speaking hacking group known as Silence. [...]
Security researchers have noticed a spike in devices infected with the TrueBot malware downloader created by a Russian-speaking hacking group known as Silence. [...]