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YARA · Arkbird SOLG (DailyIOC)

ARKBIRD_SOLG_RAN_Decaf_Nov_2021_1

Detect Decaf ransomware (unpacked UPX)

MalwareDecafArkbird SOLG (DailyIOC)No licence (all rights reserved)Compiles with YARA-X (with warnings)
Author
Arkbird_SOLG
Date
2021-11-01
Modified
2021-11-02
Score / Quality
75 / 75

What this rule detects

Detect Decaf ransomware (unpacked UPX)

Associated malware family: Decaf.

Targets: Windows PE.

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

YARA-X says: warning[text_as_hex]: hex pattern could be written as text literal

Summary generated from the rule's metadata and condition.

Rule source

Rule text not reproduced

This rule comes from Arkbird SOLG (DailyIOC), 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 GitHubOpen the repository

References

Sample hashes

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

  • 088b4715bbe986deac972d551b88f178d43b191f5a71fbd4db3fb0810a233500
  • 5da2a2ebe9959e6ac21683a8950055309eb34544962c02ed564e0deaf83c9477

Licence & attribution

Author: Arkbird_SOLG

Source repository: Arkbird SOLG (DailyIOC) @ a873ff1298

Licence: No licence (all rights reserved) (repository licence)

Original rule

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

Rule id: d19b2d31-a6c5-5033-ba43-4e9ccabc37bb

Metadata

tlpwhite
adversary-

Tags:FILE

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