YARA · Cluster25 (via Open-Source-YARA-rules)

CLUSTER25_Ghostwriter_Microloader_72632_00001

No description has been set in the source file - Cluster25

Author: Cluster25
Date: 2023-04-10
Score / Quality: 75 / 75

What this rule detects

No description has been set in the source file - Cluster25

Targets: Windows PE.

It defines 5 patterns (5 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Rule text not reproduced

This rule comes from Cluster25 (via Open-Source-YARA-rules), which does not grant a licence to redistribute its rules (No licence (all rights reserved)). We show its metadata only. Read the original rule upstream:

View the rule on GitHub Open the repository

References

https://blog.cluster25.duskrise.com/2022/03/08/ghostwriter-unc1151-adopts-microbackdoor-variants-in-cyber-operations-against-targets-in-ukraine

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

e97f1d6ec1aa3f7c7973d57074d1d623833f0e9b1c1e53f81af92c057a1fdd72

Licence & attribution

Author: Cluster25

Source repository: Cluster25 (via Open-Source-YARA-rules) @ ec0056f767

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: f0e25fac-c5ff-53a7-874e-dcd5efee4ef1

Metadata

tlp	white

Tags:FILE

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APT / threat actorCluster25 (via Open-Source-YARA-rules)· Cluster25· 2021-09-09
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CLUSTER25_APT29_Htmlsmuggling_ZIP_82733_00001Metadata only
APT / threat actorCluster25 (via Open-Source-YARA-rules)· Cluster25· 2022-05-12