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MALPEDIA_Win_Unidentified_109_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-109-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_109_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "e8489668-cc3b-5dcb-a4f3-6545c1da6985"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_109"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_109_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "c1c5ef275d8dcd4f48c737a49bb0b518c7dcd8febb350184455b4fea9d78c5ec"
		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 = { 8b5828 4133cb 418bc0 418bfc 33fb c1c005 33ca }
		$sequence_1 = { 7507 c7430800000000 8bc7 e9???????? 448b13 488b7b10 c7430800000000 }
		$sequence_2 = { 0f8726feffff 418bc0 4c8d8ec0000000 488d9680000000 c1e802 448981f4000000 896c2420 }
		$sequence_3 = { 4403da 498bd5 4123c3 4133c1 03c3 03c8 418bc2 }
		$sequence_4 = { 66898170020000 33c0 c3 0fb78170020000 a808 75c0 6683c808 }
		$sequence_5 = { 894c2420 85f6 759f 458bee 448b4558 488b5550 488d4c2420 }
		$sequence_6 = { 3bce 7cea 488d542420 488d4da7 4c8d45a7 e8???????? 4c8b65b7 }
		$sequence_7 = { 758a 4c8b642450 488b7c2448 488b5c2440 33c0 4c8b742458 4883c420 }
		$sequence_8 = { c1c20a 4133c0 458d93e68ba250 41034738 4403c8 8bc2 }
		$sequence_9 = { 488b4808 c6440bff00 493bdf 7ceb 33c0 eb05 b853ffffff }

	condition:
		7 of them and filesize < 723968
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b5828 4133cb 418bc0 418bfc 33fb c1c005 33ca }
$sequence_1hex{ 7507 c7430800000000 8bc7 e9???????? 448b13 488b7b10 c7430800000000 }
$sequence_2hex{ 0f8726feffff 418bc0 4c8d8ec0000000 488d9680000000 c1e802 448981f4000000 896c2420 }
$sequence_3hex{ 4403da 498bd5 4123c3 4133c1 03c3 03c8 418bc2 }
$sequence_4hex{ 66898170020000 33c0 c3 0fb78170020000 a808 75c0 6683c808 }
$sequence_5hex{ 894c2420 85f6 759f 458bee 448b4558 488b5550 488d4c2420 }
$sequence_6hex{ 3bce 7cea 488d542420 488d4da7 4c8d45a7 e8???????? 4c8b65b7 }
$sequence_7hex{ 758a 4c8b642450 488b7c2448 488b5c2440 33c0 4c8b742458 4883c420 }
$sequence_8hex{ c1c20a 4133c0 458d93e68ba250 41034738 4403c8 8bc2 }
$sequence_9hex{ 488b4808 c6440bff00 493bdf 7ceb 33c0 eb05 b853ffffff }

Condition

7 of them and filesize < 723968

In plain words (Heuristic)

  • The file must be smaller than 723968 (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: e8489668-cc3b-5dcb-a4f3-6545c1da6985

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