Old WinRAR Flaw Fuels Attacks on Ukraine: How Unmanaged Software Keeps the Door Open
Two Russia-aligned campaigns continue exploiting CVE-2025-8088, a WinRAR path traversal vulnerability patched in July 2025, against Ukrainian organizations through April 2026. SHADOW-EARTH-066 deploys an evolved GIFTEDCROOK information stealer using in-memory DLL loading via direct NT system calls, harvesting browser credentials, session cookies, and documents across 35 file extensions before self-deleting. Earth Dahu employs an HTA-based infection chain delivering espionage modules through Cloudflare Workers infrastructure. Both campaigns leverage the same CVE-2025-8088 exploit but use distinct tooling: SHADOW-EARTH-066 relies on compiled C++ with RC4-encrypted C&C communication, while Earth Dahu uses script-based approaches with Dynamic DNS. The persistent exploitation nearly a year post-patch demonstrates how unmanaged software lacking centralized update mechanisms creates enduring attack surfaces that threat actors deliberately target.
Pulse ID: 6a2699c6a6badcc8eac21083
Pulse Link: https://otx.alienvault.com/pulse/6a2699c6a6badcc8eac21083
Pulse Author: AlienVault
Created: 2026-06-08 10:30:30
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#Browser #CandC #Cloud #Cookies #CyberSecurity #DNS #ELF #Espionage #InfoSec #OTX #OpenThreatExchange #RAT #Russia #SMS #UK #Ukr #Ukraine #Ukrainian #Vulnerability #WinRAR #bot #AlienVault





