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MALPEDIA_Win_Lock_Pos_Auto

autogenerated rule brought to you by yara-signator

MalwareLock PosMalpedia 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: Lock Pos.

It defines 13 patterns (0 text, 13 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-lock-pos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Lock_Pos_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "893a3119-7d49-55c4-9fa3-6ebbdd6f9bec"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.lock_pos"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.lock_pos_auto.yar#L1-L141"
		license_url = "N/A"
		logic_hash = "11ce3da69eddf99fa75931b4f3065c1115c1ccb78ef2820da5235e4566f8ae4d"
		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 = { 55 8bec 8b4508 8b0d???????? 8b0481 }
		$sequence_1 = { 8bec 837d0800 7704 33c0 }
		$sequence_2 = { 8d85f8fdffff 50 6a00 6a00 6a23 }
		$sequence_3 = { 55 8bec 81eca4040000 56 }
		$sequence_4 = { 6a00 6a23 6a00 ff15???????? 8d8df8fdffff }
		$sequence_5 = { 50 e8???????? 83c404 8945f0 837df000 741b }
		$sequence_6 = { 3b4d0c 7332 8b5508 0355fc 0fbe02 }
		$sequence_7 = { 037df8 ff15???????? 394708 7415 8d5f0c 53 }
		$sequence_8 = { 53 8bd8 56 8bcb e8???????? 8bd0 03d2 }
		$sequence_9 = { 8b45fc 8b4de4 0308 894de8 8b55fc 8b4204 83e808 }
		$sequence_10 = { 0f847b010000 57 6a04 5f 8d75b4 }
		$sequence_11 = { 8945c8 8955cc 8b550c 33c0 }
		$sequence_12 = { 99 8945e0 8955e4 6a04 8d4dc8 }

	condition:
		7 of them and filesize < 319488
}

Strings (13 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 55 8bec 8b4508 8b0d???????? 8b0481 }
$sequence_1hex{ 8bec 837d0800 7704 33c0 }
$sequence_2hex{ 8d85f8fdffff 50 6a00 6a00 6a23 }
$sequence_3hex{ 55 8bec 81eca4040000 56 }
$sequence_4hex{ 6a00 6a23 6a00 ff15???????? 8d8df8fdffff }
$sequence_5hex{ 50 e8???????? 83c404 8945f0 837df000 741b }
$sequence_6hex{ 3b4d0c 7332 8b5508 0355fc 0fbe02 }
$sequence_7hex{ 037df8 ff15???????? 394708 7415 8d5f0c 53 }
$sequence_8hex{ 53 8bd8 56 8bcb e8???????? 8bd0 03d2 }
$sequence_9hex{ 8b45fc 8b4de4 0308 894de8 8b55fc 8b4204 83e808 }
$sequence_10hex{ 0f847b010000 57 6a04 5f 8d75b4 }
$sequence_11hex{ 8945c8 8955cc 8b550c 33c0 }
$sequence_12hex{ 99 8945e0 8955e4 6a04 8d4dc8 }

Condition

7 of them and filesize < 319488

In plain words (Heuristic)

  • The file must be smaller than 319488 (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: 893a3119-7d49-55c4-9fa3-6ebbdd6f9bec

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