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MALPEDIA_Win_Smominru_Auto

autogenerated rule brought to you by yara-signator

MalwareSmominruMalpedia 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: Smominru.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-smominru-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Smominru_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "5560f5a4-6d36-52e8-b0a3-87600a32da71"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.smominru"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.smominru_auto.yar#L1-L164"
		license_url = "N/A"
		logic_hash = "b59a8daa7966062e2a126c7667de606ff71ee610130b33d75a8ff84bd6a35409"
		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 = { 8b55fc f76a14 8bd0 c1e202 }
		$sequence_1 = { 0f843537ac7b 8bc8 81e103000010 83f903 }
		$sequence_2 = { 8bc6 5e c9 c20800 8d7f00 55 }
		$sequence_3 = { 8b55fc e8???????? eb18 8d45ec }
		$sequence_4 = { 8b4e1c 89481c 8b4e20 894820 8b4e24 894824 8b4e28 }
		$sequence_5 = { 8b55fc e8???????? f645fb02 740c }
		$sequence_6 = { 8b55fc e8???????? f7c600040000 742c }
		$sequence_7 = { 0f8478a6aa7b 8b7514 85f6 0f84d9a4aa7b 8bce e8???????? 3d00010000 }
		$sequence_8 = { 89461c 8b85f0fdffff 894620 8bc3 5b 8b4dfc 33cd }
		$sequence_9 = { 0f850647c07b c745e400000000 8b37 8975e0 85f6 0f842bfebb7b 83feff }
		$sequence_10 = { 8b55fc ff560c 8b450c ff00 }
		$sequence_11 = { 50 ff15???????? 81fe200100c0 0f84f32db37b 33c0 }
		$sequence_12 = { 8b55fc f76a14 c1e002 50 }
		$sequence_13 = { 8b55fc f6427001 0f848c000000 8b55dc }
		$sequence_14 = { 8945f8 e8???????? 8b401c 6a00 }
		$sequence_15 = { 8b55fc e8???????? e9???????? a1???????? 8b00 80787c00 0f84a7000000 }

	condition:
		7 of them and filesize < 8167424
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b55fc f76a14 8bd0 c1e202 }
$sequence_1hex{ 0f843537ac7b 8bc8 81e103000010 83f903 }
$sequence_2hex{ 8bc6 5e c9 c20800 8d7f00 55 }
$sequence_3hex{ 8b55fc e8???????? eb18 8d45ec }
$sequence_4hex{ 8b4e1c 89481c 8b4e20 894820 8b4e24 894824 8b4e28 }
$sequence_5hex{ 8b55fc e8???????? f645fb02 740c }
$sequence_6hex{ 8b55fc e8???????? f7c600040000 742c }
$sequence_7hex{ 0f8478a6aa7b 8b7514 85f6 0f84d9a4aa7b 8bce e8???????? 3d00010000 }
$sequence_8hex{ 89461c 8b85f0fdffff 894620 8bc3 5b 8b4dfc 33cd }
$sequence_9hex{ 0f850647c07b c745e400000000 8b37 8975e0 85f6 0f842bfebb7b 83feff }
$sequence_10hex{ 8b55fc ff560c 8b450c ff00 }
$sequence_11hex{ 50 ff15???????? 81fe200100c0 0f84f32db37b 33c0 }
$sequence_12hex{ 8b55fc f76a14 c1e002 50 }
$sequence_13hex{ 8b55fc f6427001 0f848c000000 8b55dc }
$sequence_14hex{ 8945f8 e8???????? 8b401c 6a00 }
$sequence_15hex{ 8b55fc e8???????? e9???????? a1???????? 8b00 80787c00 0f84a7000000 }

Condition

7 of them and filesize < 8167424

In plain words (Heuristic)

  • The file must be smaller than 8167424 (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: 5560f5a4-6d36-52e8-b0a3-87600a32da71

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