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 threat actor behind the RomCom RAT (remote access trojan) has refreshed its attack vector and is now abusing well-known software brands for distribution. [...]
The compromised infrastructure of an undisclosed media company is being used by threat actors to deploy the SocGholish JavaScript malware framework (also known as FakeUpdates) on the websites of hundreds of newspapers across the U.S. [...]
The compromised infrastructure of an undisclosed media company is being used by threat actors to deploy the SocGholish JavaScript malware framework (also known as FakeUpdates) on the websites of hundreds of newspapers across the U.S. [...]
The Emotet malware operation is again spamming malicious emails after almost a four-month "vacation" that saw little activity from the notorious cybercrime operation. [...]
The Emotet malware operation is again spamming malicious emails after almost a five-month "vacation" that saw little activity from the notorious cybercrime operation. [...]
Researchers have discovered over two dozen Python packages on the PyPI registry that are pushing info-stealing malware. [...]
Searching for 'GIMP' on Google as recently as last week would show visitors an ad for 'GIMP.org,' the official website of the well known graphics editor, GNU Image Manipulation Program. But clicking on it drove visitors to a lookalike phishing website that provided them with a 700 MB executable disguised as GIMP which was malware. [...]
The Chinese Cicada hacking group, tracked as APT10, was observed abusing security software to install a new version of the LODEINFO malware against Japanese organizations. [...]