Despite a 2025 patch, Russian-linked groups still exploit a WinRAR flaw (CVE-2025-8088) to deploy malware via phishing archives. CVE-2025-8088 is a path traversal flaw in WinRAR that lets an attacker write files outside the extraction directory using NTFS Alternate Data Streams. WinRAR fixed it in version 7.13 in July 2025. Nearly a year later, Trend…
Tag: WinRAR
AI, Exploits, Global Security News, Russia
WinRAR Flaw Exploited by Russia-Aligned Groups to Deploy Stealers in Ukraine
Two Russia-aligned cyber attack campaigns have continued to exploit a security flaw in WinRAR to target Ukrainian organisations, almost a year after patches for the vulnerability were released. The activity has been attributed by Trend Micro to Earth Dahu (aka Gamaredon) and SHADOW-EARTH-066 (aka UAC-0226). It involves the exploitation of CVE-2025-8088, a path traversal flaw…
AI, Exploits, Global Security News, Russia
Old WinRAR Flaw Fuels Attacks on Ukraine: How Unmanaged Software Keeps the Door Open
Two separate Russia-aligned campaigns are still exploiting the WinRAR flaw CVE-2025-8088 against Ukrainian organizations nearly a year after it was patched, showing how unmanaged software keeps an exploited entry point open long after the fix ships.
AI, Endpoint, Exploits, Global Security News, Government & Policy, malware, Network Security, Russia
Gamaredon Uses WinRAR Vulnerability to Launch Modular Spy Campaign on Ukrainian Targets
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…
AI, Apps, Exploits, Global Security News, malware, Russia
Gamaredon Exploits WinRAR to Deliver GammaWorm and GammaSteel Against Ukraine
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. Per Sekoia, the activity involves the weaponization of CVE-2025-8088, a path traversal flaw in WinRAR, to launch an HTML Application payload dubbed GammaPhish, which is then…