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YARA · ditekSHen detection

DITEKSHEN_INDICATOR_KB_ID_UNK01

Detects Amadey executables with specific email addresses found in the code signing certificate

Suspicious / huntingUNK01ditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekShen
Date
2021-01-21
Modified
2024-01-23
Score / Quality
75 / 73

What this rule detects

Detects Amadey executables with specific email addresses found in the code signing certificate

Associated malware family: UNK01.

Targets: Windows PE.

It defines 1 patterns (1 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-kb-id-unk01.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_KB_ID_UNK01 : FILE
{
	meta:
		description = "Detects Amadey executables with specific email addresses found in the code signing certificate"
		author = "ditekShen"
		id = "56e83bfb-e17d-5d27-87fa-e275cc540148"
		date = "2021-01-21"
		modified = "2024-01-23"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/indicator_knownbad_id.yar#L49-L58"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		hash = "37d08a64868c35c5bae8f5155cc669486590951ea80dd9da61ec38defb89a146"
		logic_hash = "d85461f74186fcabcbf7f2bc1dce06b0012c504cf3235a6fc3e1499dc6f8a3ee"
		score = 75
		quality = 73
		tags = "FILE"

	strings:
		$s1 = "etienne@tetracerous.br" ascii wide nocase

	condition:
		uint16( 0 ) == 0x5a4d and any of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$s1text"etienne@tetracerous.br"ascii wide nocase

Condition

uint16( 0 ) == 0x5a4d and any of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least one pattern in the rule must match.

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References

Sample hashes

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

  • 37d08a64868c35c5bae8f5155cc669486590951ea80dd9da61ec38defb89a146

Licence & attribution

Author: ditekShen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

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

Rule id: 56e83bfb-e17d-5d27-87fa-e275cc540148

Tags:FILE

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