Russia-Aligned Gorbag Hackers Exploit WinRAR Flaw to Deploy Data-Stealing Malware

MediumThe Hacker News · info@thehackernews.com (The Hacker News)·

At a glance

Severity
Medium
Used in attacks
No flaws named
Industries
Government
Reported by
1 outlet

A Russia-aligned threat actor known as Gorbag has been observed using simple information stealer malware in attacks targeting Ukrainian organizations. "Active since at least February 2025, the group has focused exclusively on Ukrainian targets, with a clear preference for law enforcement and justice entities, local administrations near the front line, and the defense sector," ESET researcher…

We summarise and link; this source is not one we hold a licence to reproduce. Everything below is what CyberBrief adds: the vulnerabilities involved, whether they are being exploited, who is named, and who else covered it.

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Coverage

One outlet has carried this so far.

  1. The Hacker News ↗Established SourceFirst reported

    2026-11-03 11:00 UTC

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