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MALPEDIA_Win_Acehash_Auto

autogenerated rule brought to you by yara-signator

MalwareAcehashMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Acehash.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-acehash-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Acehash_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "e16306e5-1f4e-5876-87ba-dcbf55aba90c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.acehash"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.acehash_auto.yar#L1-L129"
		license_url = "N/A"
		logic_hash = "458a01b3065c0dbc769ff876bcdff8dca9840dd5d01b83325b94bb7c7fc80936"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 33c3 488d1dbdad0300 89471c 488d3dd7ad0300 418b4b18 4983c310 e8???????? }
		$sequence_1 = { 488bc1 48c1f805 488d1554fe0d00 83e11f 486bc958 488b04c2 80640808fe }
		$sequence_2 = { c3 4885d2 74f1 4885c9 }
		$sequence_3 = { 0bc2 c1e008 0bc8 33d2 41894bfc 453bc2 72b7 }
		$sequence_4 = { 418bc2 c1e808 0fb6c8 410fb6c2 4133948900040000 41331481 8b4518 }
		$sequence_5 = { 4c8b4c2440 8b7c2420 3b7c242c 7d25 4c8b442458 4c8b542470 448b5c2424 }
		$sequence_6 = { 397ddc 746c 4c8d153b94fdff 4b8b84eaa0511100 f644300848 741e ba0a000000 }
		$sequence_7 = { 488905???????? ff15???????? 488d15493b0300 483305???????? 488bcb }
		$sequence_8 = { 488d0de90a0300 e8???????? 83f8ff 750a b80c00e00c 4883c428 c3 }
		$sequence_9 = { 8bd3 498bce 4889442420 e8???????? 4c8d3df4110300 4c8d6738 4c8d0569130300 }

	condition:
		7 of them and filesize < 2318336
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 33c3 488d1dbdad0300 89471c 488d3dd7ad0300 418b4b18 4983c310 e8???????? }
$sequence_1hex{ 488bc1 48c1f805 488d1554fe0d00 83e11f 486bc958 488b04c2 80640808fe }
$sequence_2hex{ c3 4885d2 74f1 4885c9 }
$sequence_3hex{ 0bc2 c1e008 0bc8 33d2 41894bfc 453bc2 72b7 }
$sequence_4hex{ 418bc2 c1e808 0fb6c8 410fb6c2 4133948900040000 41331481 8b4518 }
$sequence_5hex{ 4c8b4c2440 8b7c2420 3b7c242c 7d25 4c8b442458 4c8b542470 448b5c2424 }
$sequence_6hex{ 397ddc 746c 4c8d153b94fdff 4b8b84eaa0511100 f644300848 741e ba0a000000 }
$sequence_7hex{ 488905???????? ff15???????? 488d15493b0300 483305???????? 488bcb }
$sequence_8hex{ 488d0de90a0300 e8???????? 83f8ff 750a b80c00e00c 4883c428 c3 }
$sequence_9hex{ 8bd3 498bce 4889442420 e8???????? 4c8d3df4110300 4c8d6738 4c8d0569130300 }

Condition

7 of them and filesize < 2318336

In plain words (Heuristic)

  • The file must be smaller than 2318336 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

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

Rule id: e16306e5-1f4e-5876-87ba-dcbf55aba90c

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE