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MALPEDIA_Win_Unidentified_118_Auto

autogenerated rule brought to you by yara-signator

MalwareMalpedia 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

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

Summary generated from the rule's metadata and condition.

Rule source

win-unidentified-118-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_118_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a8e73e12-5254-58f8-aa5b-7d6866cf4024"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_118"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_118_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "ac4ca7fd8b9206c3c4e9dcbed3667ecd11bc7913dbdf39358c48034b9c8b527c"
		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 = { 488d4c2428 488b742420 418d5708 482bce 4489742438 89442428 895c2444 }
		$sequence_1 = { 488bce e8???????? 6644893c33 eb0c 448a45c4 488bcf e8???????? }
		$sequence_2 = { 488b4330 488b10 ffd2 4883633800 488b5c2430 4883c420 }
		$sequence_3 = { 488bda 4883611800 e8???????? 4883631000 48c743180f000000 c60300 4883c420 }
		$sequence_4 = { 488bc8 e8???????? 4c8d4c2450 33c9 4c8d442420 488d542448 ffd0 }
		$sequence_5 = { 4883c004 4803c2 8b4808 8b400c 85c9 0f84cafeffff }
		$sequence_6 = { 4103c8 3bd9 721a 8bd3 498bc9 e8???????? 4c8bd0 }
		$sequence_7 = { 488bd6 4c8b8c2488000000 488bcd 4c8b842480000000 89442428 8b842490000000 }
		$sequence_8 = { 488d442440 4889442420 4533c9 4533c0 8bd3 488b4c2450 e8???????? }
		$sequence_9 = { 4584ed 7420 0fb7442420 3b4210 0f829d010000 3b4214 0f8394010000 }

	condition:
		7 of them and filesize < 413696
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 488d4c2428 488b742420 418d5708 482bce 4489742438 89442428 895c2444 }
$sequence_1hex{ 488bce e8???????? 6644893c33 eb0c 448a45c4 488bcf e8???????? }
$sequence_2hex{ 488b4330 488b10 ffd2 4883633800 488b5c2430 4883c420 }
$sequence_3hex{ 488bda 4883611800 e8???????? 4883631000 48c743180f000000 c60300 4883c420 }
$sequence_4hex{ 488bc8 e8???????? 4c8d4c2450 33c9 4c8d442420 488d542448 ffd0 }
$sequence_5hex{ 4883c004 4803c2 8b4808 8b400c 85c9 0f84cafeffff }
$sequence_6hex{ 4103c8 3bd9 721a 8bd3 498bc9 e8???????? 4c8bd0 }
$sequence_7hex{ 488bd6 4c8b8c2488000000 488bcd 4c8b842480000000 89442428 8b842490000000 }
$sequence_8hex{ 488d442440 4889442420 4533c9 4533c0 8bd3 488b4c2450 e8???????? }
$sequence_9hex{ 4584ed 7420 0fb7442420 3b4210 0f829d010000 3b4214 0f8394010000 }

Condition

7 of them and filesize < 413696

In plain words (Heuristic)

  • The file must be smaller than 413696 (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: a8e73e12-5254-58f8-aa5b-7d6866cf4024

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