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MALPEDIA_Win_Typehash_Auto

autogenerated rule brought to you by yara-signator

MalwareTypehashMalpedia 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: Typehash.

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

Summary generated from the rule's metadata and condition.

Rule source

win-typehash-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Typehash_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "cd3d0daf-071b-56a7-92ed-25ee2ed69617"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.typehash"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.typehash_auto.yar#L1-L122"
		license_url = "N/A"
		logic_hash = "6bbfe1811b32f3324fb596ed5ae275614a5c61379d42007891469e7976a2ba78"
		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 = { 8841ff eb0a 49 51 e8???????? 83c404 8b8c24c0000000 }
		$sequence_1 = { f6c303 7509 8b0c85b02b4100 eb07 8b0c85e42b4100 034d20 837d0801 }
		$sequence_2 = { 8818 8a9c0a93e54000 88990f354100 40 83f903 }
		$sequence_3 = { 7524 8b5750 6a04 6800300000 52 50 ffd6 }
		$sequence_4 = { 8a442403 53 55 56 33ed }
		$sequence_5 = { 7514 c1e902 83e203 83f908 7229 f3a5 ff2495f8334000 }
		$sequence_6 = { ff15???????? bf???????? 83c9ff 33c0 68???????? f2ae }
		$sequence_7 = { 66f7460c0c01 7552 833c852835410000 53 57 8d3c8528354100 }
		$sequence_8 = { 5f 89b0f83a4100 5e 5b }
		$sequence_9 = { 8d8424a80a0000 8d8c2404010000 89442474 3bfb }

	condition:
		7 of them and filesize < 180224
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8841ff eb0a 49 51 e8???????? 83c404 8b8c24c0000000 }
$sequence_1hex{ f6c303 7509 8b0c85b02b4100 eb07 8b0c85e42b4100 034d20 837d0801 }
$sequence_2hex{ 8818 8a9c0a93e54000 88990f354100 40 83f903 }
$sequence_3hex{ 7524 8b5750 6a04 6800300000 52 50 ffd6 }
$sequence_4hex{ 8a442403 53 55 56 33ed }
$sequence_5hex{ 7514 c1e902 83e203 83f908 7229 f3a5 ff2495f8334000 }
$sequence_6hex{ ff15???????? bf???????? 83c9ff 33c0 68???????? f2ae }
$sequence_7hex{ 66f7460c0c01 7552 833c852835410000 53 57 8d3c8528354100 }
$sequence_8hex{ 5f 89b0f83a4100 5e 5b }
$sequence_9hex{ 8d8424a80a0000 8d8c2404010000 89442474 3bfb }

Condition

7 of them and filesize < 180224

In plain words (Heuristic)

  • The file must be smaller than 180224 (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: cd3d0daf-071b-56a7-92ed-25ee2ed69617

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