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MALPEDIA_Win_Unidentified_096_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-096-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_096_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "02ca902e-69f3-538c-b15a-2aa5fa108962"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_096"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_096_auto.yar#L1-L125"
		license_url = "N/A"
		logic_hash = "8529473ef1232eb349559a0d6310063e2f83c0302dbd34f6b13714f4b0f49954"
		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 = { 6a10 52 56 6803000010 53 ffd7 3b44240c }
		$sequence_1 = { ffd6 0fbfc0 8944240c ff15???????? 8bf0 a1???????? 3bf0 }
		$sequence_2 = { 56 8b742458 8d442424 33ed 50 c744242830000000 }
		$sequence_3 = { b026 a2???????? eb20 b02a }
		$sequence_4 = { 56 e8???????? 8b4c2420 8b542418 83c404 53 }
		$sequence_5 = { 52 ffd7 8d442410 50 ffd3 55 }
		$sequence_6 = { 8b4c2414 53 50 68ff000000 51 }
		$sequence_7 = { 68???????? 25ffff0000 52 8b542418 81e1ffff0000 50 8b442422 }
		$sequence_8 = { 53 51 68ff000000 52 ff15???????? 5f }
		$sequence_9 = { 83c418 c3 8b0d???????? 51 68???????? e8???????? 8b15???????? }

	condition:
		7 of them and filesize < 25648
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 6a10 52 56 6803000010 53 ffd7 3b44240c }
$sequence_1hex{ ffd6 0fbfc0 8944240c ff15???????? 8bf0 a1???????? 3bf0 }
$sequence_2hex{ 56 8b742458 8d442424 33ed 50 c744242830000000 }
$sequence_3hex{ b026 a2???????? eb20 b02a }
$sequence_4hex{ 56 e8???????? 8b4c2420 8b542418 83c404 53 }
$sequence_5hex{ 52 ffd7 8d442410 50 ffd3 55 }
$sequence_6hex{ 8b4c2414 53 50 68ff000000 51 }
$sequence_7hex{ 68???????? 25ffff0000 52 8b542418 81e1ffff0000 50 8b442422 }
$sequence_8hex{ 53 51 68ff000000 52 ff15???????? 5f }
$sequence_9hex{ 83c418 c3 8b0d???????? 51 68???????? e8???????? 8b15???????? }

Condition

7 of them and filesize < 25648

In plain words (Heuristic)

  • The file must be smaller than 25648 (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: 02ca902e-69f3-538c-b15a-2aa5fa108962

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