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MALPEDIA_Win_Winos_Auto

autogenerated rule brought to you by yara-signator

MalwareWinosMalpedia 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: Winos.

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

Summary generated from the rule's metadata and condition.

Rule source

win-winos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Winos_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "43b83a96-8dab-5aba-ab26-050a40e2448c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.winos"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.winos_auto.yar#L1-L124"
		license_url = "N/A"
		logic_hash = "a68822c4e7fe8a236d5e547c69555e9f67fb9650712fbb3b3f2f59da98143c5a"
		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 = { e8???????? 83c40c 68???????? 8d5702 68ff000000 52 c60701 }
		$sequence_1 = { 6683f881 7412 6683f801 740c c705????????00000000 eb1e c705????????01000000 }
		$sequence_2 = { 895008 8b8b2c040000 89480c 8b9334040000 895018 89442424 }
		$sequence_3 = { 83c40c 837b0800 7510 8b4b04 }
		$sequence_4 = { 8945f8 53 8b5d08 56 33f6 57 8975a0 }
		$sequence_5 = { 50 ff15???????? 0fb74c2438 0fb7542436 0fb7442434 51 0fb74c2436 }
		$sequence_6 = { ff15???????? 8b35???????? 50 ffd6 50 8945b8 ff15???????? }
		$sequence_7 = { 8d8dfaf7ffff 894624 51 668985f8f7ffff }
		$sequence_8 = { 6a00 68???????? 68???????? c705????????3c000000 8b08 8b5128 6a14 }
		$sequence_9 = { 52 6a00 50 c745dc00000000 }

	condition:
		7 of them and filesize < 457728
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 83c40c 68???????? 8d5702 68ff000000 52 c60701 }
$sequence_1hex{ 6683f881 7412 6683f801 740c c705????????00000000 eb1e c705????????01000000 }
$sequence_2hex{ 895008 8b8b2c040000 89480c 8b9334040000 895018 89442424 }
$sequence_3hex{ 83c40c 837b0800 7510 8b4b04 }
$sequence_4hex{ 8945f8 53 8b5d08 56 33f6 57 8975a0 }
$sequence_5hex{ 50 ff15???????? 0fb74c2438 0fb7542436 0fb7442434 51 0fb74c2436 }
$sequence_6hex{ ff15???????? 8b35???????? 50 ffd6 50 8945b8 ff15???????? }
$sequence_7hex{ 8d8dfaf7ffff 894624 51 668985f8f7ffff }
$sequence_8hex{ 6a00 68???????? 68???????? c705????????3c000000 8b08 8b5128 6a14 }
$sequence_9hex{ 52 6a00 50 c745dc00000000 }

Condition

7 of them and filesize < 457728

In plain words (Heuristic)

  • The file must be smaller than 457728 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 43b83a96-8dab-5aba-ab26-050a40e2448c

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