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MALPEDIA_Win_Unidentified_080_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-080-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_080_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "afb0dce3-a620-523e-848e-5c7e1392b889"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_080"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_080_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "2b52161c4f8131d07a81333aa3ba5e4cbef65b4861940f4df33c7b85205fc1fa"
		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 = { 8d3c85c0a20210 8bf3 83e61f c1e606 8b07 0fbe443004 83e001 }
		$sequence_1 = { 8975f0 e8???????? 85c0 0f848a000000 8b5dec 8975d8 8975dc }
		$sequence_2 = { 8b37 83c6f4 837e0400 743e 833e00 7c2a }
		$sequence_3 = { 895c2434 895c2438 c744241c28290210 8b4c244c 53 8d9424a4000000 52 }
		$sequence_4 = { 56 ff15???????? 89859cfdffff 83f8ff 7532 83c6f4 81fe???????? }
		$sequence_5 = { 85c0 742d 33c9 c70001000000 897004 897008 66894c700c }
		$sequence_6 = { e8???????? 33c9 83c424 3bc3 0f94c1 8bf1 eb1a }
		$sequence_7 = { 894f08 c7442438ffffffff 8b44241c 33db 3bc3 740f }
		$sequence_8 = { 8bec 83ec10 53 8bd8 ff4320 56 33f6 }
		$sequence_9 = { 0fb77448fe 33c9 83fe5c 0f94c1 3bcb 7516 }

	condition:
		7 of them and filesize < 392192
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d3c85c0a20210 8bf3 83e61f c1e606 8b07 0fbe443004 83e001 }
$sequence_1hex{ 8975f0 e8???????? 85c0 0f848a000000 8b5dec 8975d8 8975dc }
$sequence_2hex{ 8b37 83c6f4 837e0400 743e 833e00 7c2a }
$sequence_3hex{ 895c2434 895c2438 c744241c28290210 8b4c244c 53 8d9424a4000000 52 }
$sequence_4hex{ 56 ff15???????? 89859cfdffff 83f8ff 7532 83c6f4 81fe???????? }
$sequence_5hex{ 85c0 742d 33c9 c70001000000 897004 897008 66894c700c }
$sequence_6hex{ e8???????? 33c9 83c424 3bc3 0f94c1 8bf1 eb1a }
$sequence_7hex{ 894f08 c7442438ffffffff 8b44241c 33db 3bc3 740f }
$sequence_8hex{ 8bec 83ec10 53 8bd8 ff4320 56 33f6 }
$sequence_9hex{ 0fb77448fe 33c9 83fe5c 0f94c1 3bcb 7516 }

Condition

7 of them and filesize < 392192

In plain words (Heuristic)

  • The file must be smaller than 392192 (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: afb0dce3-a620-523e-848e-5c7e1392b889

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