ThreatCluster

Gamayun APT Targets MSC EvilTwin Vulnerability for Cyberattack

First seen 26 Nov 2025, 11:32 UTC • •42

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ThreatCluster •March 12, 2026 at 13:27 UTC

The Gamayun APT, linked to the Russia-aligned Water Gamayun group, has exploited a newly identified MSC EvilTwin vulnerability to deploy malicious code. This attack highlights the ongoing threat posed by advanced persistent threats (APTs) in the cybersecurity landscape.

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Threat Graph

7 entities, 9 inferred relationships (STIX 2.1).

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Threat Actor (4)

Gamayun
Gamayun APT
Water Gamayun
Water Gamayun APT Hackers

Technique (1)

Malware

Affected Platform (1)

Windows

Vulnerability (1)

EvilTwin

Relationships

Gamayun uses Malware
Gamayun APT uses Malware
Water Gamayun uses Malware
Water Gamayun APT Hackers uses Malware
Gamayun exploits EvilTwin
Gamayun APT exploits EvilTwin
Water Gamayun exploits EvilTwin
Water Gamayun APT Hackers exploits EvilTwin
EvilTwin targets Windows

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