Latest cybersecurity reporting from selected sources.

Gamaredon exploits a WinRAR flaw to drop modular, nearly fileless malware on Ukrainian targets, hiding payloads in Windows streams and resolving C2s via Telegram. Sekoia’s Threat Detection & Research team dropped a YARA rule in late December 2025 to hunt for new initial access vectors, and by January 2026 it had already generated a dozen […]

The Russian hacking group known as Gamaredon has been attributed to the continued exploitation of a WinRAR vulnerability to deliver multiple malware families aimed at data theft and propagation

Espionage and Cybercrime Campaign Tied to 7-Zip Mark-of-the-Web Bypass HitsRussian hackers targeting Ukrainian government agencies and businesses - including a major automotive manufacturer - have been targeting a zero-day vulnerability in the open source and widely used 7-Zip archive utility, to infect systems with credential-stealing SmokeLoader malware.

A newly patched security flaw impacting Windows NT LAN Manager (NTLM) was exploited as a zero-day by a suspected Russia-linked actor as part of cyber attacks targeting Ukraine

Cloudflare on Thursday said it took steps to disrupt a month-long phishing campaign orchestrated by a Russia-aligned threat actor called FlyingYeti targeting Ukraine

The Computer Emergency Response Team of Ukraine (CERT-UA) has cautioned of a new set of spear-phishing attacks exploiting the "Follina" flaw in the Windows operating system to deploy password-stealing malware

The Ukrainian Computer Emergency Response Team (CERT) is warning that Russian hacking groups are exploiting the Follina code execution vulnerability in new phishing campaigns to install the CredoMap malware and Cobalt Strike beacons. [...]