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MALPEDIA_Win_Metadatabin_Auto

autogenerated rule brought to you by yara-signator

MalwareMetadatabinMalpedia 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: Metadatabin.

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

Summary generated from the rule's metadata and condition.

Rule source

win-metadatabin-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Metadatabin_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a2d0df94-9344-5970-ae13-4092f0b7ea03"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.metadatabin"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.metadatabin_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "e23b710fe308760b0d61742755dba605975b9311e6186f6b185213ad8bc453bc"
		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 = { 89fb 89c7 758b 8b45f0 8b5510 8b4dec 39d8 }
		$sequence_1 = { 8b5c2414 8b4c2418 31c0 01d9 894c2418 8d4c19ff 39f9 }
		$sequence_2 = { c1e105 01c1 fec0 f7d9 884724 80f909 726a }
		$sequence_3 = { f7e3 8b5c2408 01c8 89842460010000 0fb6442418 11c2 89d8 }
		$sequence_4 = { c144240407 c1c007 c1c207 8944244c 89c8 89f9 8954242c }
		$sequence_5 = { f7e3 01f8 89d1 8b7c2440 89842418010000 8b442430 11f1 }
		$sequence_6 = { 7426 01d0 8d341a 662e0f1f840000000000 6690 0fb618 40 }
		$sequence_7 = { 89f7 8b75ec 89d3 8d14bd00000000 8b4808 8b4508 8d0481 }
		$sequence_8 = { 8b8c2480020000 89542424 f7e1 898424d0010000 8b8424f0000000 89542420 f7e1 }
		$sequence_9 = { f20f11431c f20f114b24 8b45dc 89432c 31c0 894604 897e08 }

	condition:
		7 of them and filesize < 1263616
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 89fb 89c7 758b 8b45f0 8b5510 8b4dec 39d8 }
$sequence_1hex{ 8b5c2414 8b4c2418 31c0 01d9 894c2418 8d4c19ff 39f9 }
$sequence_2hex{ c1e105 01c1 fec0 f7d9 884724 80f909 726a }
$sequence_3hex{ f7e3 8b5c2408 01c8 89842460010000 0fb6442418 11c2 89d8 }
$sequence_4hex{ c144240407 c1c007 c1c207 8944244c 89c8 89f9 8954242c }
$sequence_5hex{ f7e3 01f8 89d1 8b7c2440 89842418010000 8b442430 11f1 }
$sequence_6hex{ 7426 01d0 8d341a 662e0f1f840000000000 6690 0fb618 40 }
$sequence_7hex{ 89f7 8b75ec 89d3 8d14bd00000000 8b4808 8b4508 8d0481 }
$sequence_8hex{ 8b8c2480020000 89542424 f7e1 898424d0010000 8b8424f0000000 89542420 f7e1 }
$sequence_9hex{ f20f11431c f20f114b24 8b45dc 89432c 31c0 894604 897e08 }

Condition

7 of them and filesize < 1263616

In plain words (Heuristic)

  • The file must be smaller than 1263616 (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: a2d0df94-9344-5970-ae13-4092f0b7ea03

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