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MALPEDIA_Win_Unidentified_095_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-095-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_095_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1ee109b8-7db3-547e-8aa9-bdbf890c6fe1"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_095"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_095_auto.yar#L1-L127"
		license_url = "N/A"
		logic_hash = "5aec5e44580b8209132775ea3819c3df19ed619165f934b3fecfb8f0c5d79241"
		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 = { 85c0 7428 85db 7524 488d0d9ef60100 e8???????? 85c0 }
		$sequence_1 = { 4c8d35ed59ffff 4885db 750d 488bc7 498784f6f0430200 eb1e 488bc3 }
		$sequence_2 = { 488d0df9350100 ff15???????? 488bf8 4885c0 }
		$sequence_3 = { 8bd0 488d0d064c0100 e8???????? 41b999010000 e9???????? 488b5597 41b901000000 }
		$sequence_4 = { 4157 4883ec20 33db 498be8 4c8bf2 891a 4c8bf9 }
		$sequence_5 = { 4c8bb42450020000 8bd8 4885ed 7409 488bcd ff15???????? }
		$sequence_6 = { 4c8d0d56ac0000 c5f35cca c4c173590cc1 4c8d0d259c0000 c5f359c1 }
		$sequence_7 = { 0f84ea020000 ba04010000 488bc8 ff15???????? 85c0 0f84d4020000 ffc8 }
		$sequence_8 = { c744245004000000 ff15???????? 488b4c2468 8bd8 ff15???????? 85db }
		$sequence_9 = { 48833d????????ff 488bd9 7507 e8???????? eb0f 488bd3 488d0d30f50100 }

	condition:
		7 of them and filesize < 339968
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 85c0 7428 85db 7524 488d0d9ef60100 e8???????? 85c0 }
$sequence_1hex{ 4c8d35ed59ffff 4885db 750d 488bc7 498784f6f0430200 eb1e 488bc3 }
$sequence_2hex{ 488d0df9350100 ff15???????? 488bf8 4885c0 }
$sequence_3hex{ 8bd0 488d0d064c0100 e8???????? 41b999010000 e9???????? 488b5597 41b901000000 }
$sequence_4hex{ 4157 4883ec20 33db 498be8 4c8bf2 891a 4c8bf9 }
$sequence_5hex{ 4c8bb42450020000 8bd8 4885ed 7409 488bcd ff15???????? }
$sequence_6hex{ 4c8d0d56ac0000 c5f35cca c4c173590cc1 4c8d0d259c0000 c5f359c1 }
$sequence_7hex{ 0f84ea020000 ba04010000 488bc8 ff15???????? 85c0 0f84d4020000 ffc8 }
$sequence_8hex{ c744245004000000 ff15???????? 488b4c2468 8bd8 ff15???????? 85db }
$sequence_9hex{ 48833d????????ff 488bd9 7507 e8???????? eb0f 488bd3 488d0d30f50100 }

Condition

7 of them and filesize < 339968

In plain words (Heuristic)

  • The file must be smaller than 339968 (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: 1ee109b8-7db3-547e-8aa9-bdbf890c6fe1

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