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MALPEDIA_Win_Maui_Auto

autogenerated rule brought to you by yara-signator

MalwareMauiMalpedia 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: Maui.

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

Summary generated from the rule's metadata and condition.

Rule source

win-maui-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Maui_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "24021aed-eb43-5ae6-9fab-1db01943c23f"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.maui"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.maui_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "b071f47101cb7b693027fc2730fdb291c60196211c622012cdbfa644201e236d"
		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 = { 68???????? f7de 1bf6 6a13 6a06 f7de e8???????? }
		$sequence_1 = { e8???????? c787f8000000b01a4200 83c40c 33c9 83fe02 0f95c1 }
		$sequence_2 = { a1???????? 33c4 890424 8b442408 85c0 7421 85c9 }
		$sequence_3 = { 68???????? 6889000000 e9???????? 83c002 807c241300 89442414 0f8561010000 }
		$sequence_4 = { 8b15???????? 894808 668b0d???????? 89500c 8b15???????? 6aff 52 }
		$sequence_5 = { 8b542410 55 56 57 50 8d4c2410 }
		$sequence_6 = { eb09 0fb6c0 8a8040db4a00 46 0fb6c0 84c9 7850 }
		$sequence_7 = { 8b06 8b4868 85c9 751c 6844040000 68???????? 6a42 }
		$sequence_8 = { 8b30 8b7b14 8b7614 33f7 23f1 33fe 897b14 }
		$sequence_9 = { 8bf0 85f6 7520 68fe000000 68???????? 6a41 68a5000000 }

	condition:
		7 of them and filesize < 1616896
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 68???????? f7de 1bf6 6a13 6a06 f7de e8???????? }
$sequence_1hex{ e8???????? c787f8000000b01a4200 83c40c 33c9 83fe02 0f95c1 }
$sequence_2hex{ a1???????? 33c4 890424 8b442408 85c0 7421 85c9 }
$sequence_3hex{ 68???????? 6889000000 e9???????? 83c002 807c241300 89442414 0f8561010000 }
$sequence_4hex{ 8b15???????? 894808 668b0d???????? 89500c 8b15???????? 6aff 52 }
$sequence_5hex{ 8b542410 55 56 57 50 8d4c2410 }
$sequence_6hex{ eb09 0fb6c0 8a8040db4a00 46 0fb6c0 84c9 7850 }
$sequence_7hex{ 8b06 8b4868 85c9 751c 6844040000 68???????? 6a42 }
$sequence_8hex{ 8b30 8b7b14 8b7614 33f7 23f1 33fe 897b14 }
$sequence_9hex{ 8bf0 85f6 7520 68fe000000 68???????? 6a41 68a5000000 }

Condition

7 of them and filesize < 1616896

In plain words (Heuristic)

  • The file must be smaller than 1616896 (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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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: 24021aed-eb43-5ae6-9fab-1db01943c23f

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