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 new Android malware named 'Goldoson' has infiltrated the platform's official app store, Google Play, through 60 apps that collectively have 100 million downloads. [...]
Microsoft is warning of a phishing campaign targeting accounting firms and tax preparers with remote access malware allowing initial access to corporate networks. [...]
WhatsApp announced today the introduction of several new security features, one of them dubbed "Device Verification" and designed to provide better protection against account takeover (ATO) attacks. [...]
A Kyocera Android printing app is vulnerable to improper intent handling, allowing other malicious applications to abuse the flaw to download and potentially install malware on devices. [...]
Hackers are compromising websites to inject scripts that display fake Google Chrome automatic update errors that distribute malware to unaware visitors. [...]
Malware developers have created a thriving market promising to add malicious Android apps to Google Play for $2,000 to $20,000, depending on the type of malicious behavior cyber criminals request. [...]