water_gamayu

Also known aswater_gamayu

Water Gamayu, also referred to in the provided content as EncryptHub and Larva-208, is a threat actor observed exploiting CVE-2025-26633, a Microsoft Management Console Security Feature Bypass vulnerability. In the cited campaign, the actor used this vulnerability to deploy the MSC EvilTwin trojan loader. The same campaigns also involved deployment or abuse of multiple malware families, including EncryptHub stealer, DarkWisp backdoor, SilentPrism backdoor, Stealc, and Rhadamanthys stealer. No nation-state attribution is stated in the provided content.

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ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

1 SOURCESView more in app

tenable blogNews

Dec 10, 2025

Microsoft Patch Tuesday 2025 Year in Review

Water Gamayu is an APT group known for exploiting security feature bypass vulnerabilities to deploy a variety of malware, including trojan loaders, stealers, and backdoors.

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Target overlap

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Tradecraft mapping

Every observed MITRE ATT&CK technique, grouped by tactic.

Malware arsenal

Families this actor is known to deploy, with IOCs and behavior.

Exploited CVEs

CVEs this actor has used in known campaigns.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Observables

Domains, IPs, and hashes tied to this actor, refreshed continuously.