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.
SocGholish malware has been removed from 15,000 sites associated with Evil Corp hackers
Cybersecurity firms, researchers and officials took down 106 servers and remediated nearly 15,000 sites that were infected with the malware. The post Authorities disrupt Evil Corp’s SocGholish botnet appeared first on CyberScoop.
USB .lnk malware steals crypto via clipboard hijack, replaces wallet addresses, steals seed phrases, and screenshots. Microsoft Threat Intelligence has been tracking a clipboard-stealing malware (Clipper) campaign since February 2026 that targets cryptocurrency wallets. A clipper is a type of malicious software that monitors and manipulates your clipboard, the temporary memory where data is stored […]
Threat actors targeting cryptocurrency wallets have been distributing clipboard-stealing malware with self-spreading capabilities and using the Tor network to conceal communication. [...]
The internet did not break this week. It got used exactly as designed, which is worse
Microsoft has disclosed details of a Windows-based cryptocurrency clipper campaign that has targeted users since February 2026 with clipboard-intercepting malware with self-spreading capabilities and using the Tor anonymity network to hide communication
International law enforcement agencies cleaned nearly 15,000 malware-infected WordPress websites and took down more than 100 servers linked to the SocGholish botnet and the Evil Corp Russian cybercrime group. [...]
Microsoft confirmed the RoguePlanet Defender zero-day (CVE-2026-50656), a privilege escalation flaw, and is developing a security patch. Microsoft has acknowledged the RoguePlanet zero-day affecting Microsoft Defender, tracked as CVE-2026-50656 (CVSS score of 7.8). The vulnerability allows privilege escalation through the Microsoft Malware Protection Engine. The company stated it is aware of the issue and is […]
Microsoft Threat Intelligence analyzed a cryptocurrency clipper campaign that combines clipboard theft, wallet replacement, Tor-based communications, and worm-like propagation. Beyond stealing cryptocurrency transactions, the malware establishes persistent access and enables follow-on activity through a lightweight backdoor capability. The post Crypto Clipper uses Tor and worm-like propagation for persistence and control appeared first on Microsoft Security Blog.
Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day codenamed RoguePlanet
DragonForce hid for months by routing malware traffic through Microsoft Teams infrastructure, masking C2 activity and evading network detection. DragonForce ransomware operators hit a major U.S. services firm and stayed hidden for one to two months by routing their command-and-control traffic through Microsoft’s own Teams relay servers. Symantec’s threat hunters tracked the custom backdoor they […]
Cybersecurity researchers have flagged a "coordinated malware campaign" on the JetBrains Marketplace that has published no less than 15 malicious plugins capable of exfiltrating artificial intelligence (AI) provider keys
Rokarolla Android malware targets 217 banking and crypto apps, steals credentials, blocks bank calls, intercepts SMS, and disables Play Protect. Zimperium’s zLabs researchers have published a detailed analysis of Rokarolla, a new Android banking trojan named after its command-and-control infrastructure. It spreads through malicious websites masquerading as TikTok and Chrome, one confirmed distribution point being […]
Cybercriminals hijacked Google Ads searches for popular AI developer tools to funnel over 2,000 victims toward malicious download pages before quietly moving their operation onto claude.ai's own platform, turning the trusted domain into a delivery mechanism for credential-stealing malware.
In addition to executing entirely in memory, the malware's infection chain incorporates other anti-analysis techniques designed to evade detection.
Threat Actor Silently Forwarded Sensitive Emails Matching Strategic TopicsGoogle says Chinese espionage group UNC6508 compromised REDCap environments at North American research institutions, deployed custom malware, stole credentials and covertly forwarded strategically relevant emails through abused compliance rules to support long-term intelligence collection.
Malware Targets Banks, Crypto Platforms and Social MediaNewly surfaced Android-based banking Trojan gives threat actors near-total control over infected devices, letting them steal user credentials for direct access to financial accounts, says researchers. Rokarolla tricks users into side-loading malicious versions of popular, high traffic apps.
A new Android banking trojan named Rokarolla is targeting 217 banking and cryptocurrency applications using an extensive set of 137 commands. [...]
Threat actors are abusing Steam Workshop, Valve's community hub for downloading game-related content, to push various malware hidden in wallpaper packages. [...]
Cybersecurity researchers have flagged multiple ClickFix campaigns that deliver three malware loaders called BabaDeda Loader, Lorem Ipsum Loader, and Potemkin, per independent reports from Morphisec, BlueVoyant, and Huntress, respectively