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MALPEDIA_Win_Andromut_Auto

autogenerated rule brought to you by yara-signator

MalwareAndromutMalpedia 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: Andromut.

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

Summary generated from the rule's metadata and condition.

Rule source

win-andromut-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Andromut_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "b468f4ca-e27c-5dd4-8fb9-52480adaac11"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.andromut"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.andromut_auto.yar#L1-L123"
		license_url = "N/A"
		logic_hash = "c7bb27f9630a4fc0f04d55e6bf36c672266b537a9c6fdf533cba5d8028553d1a"
		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 = { 83c418 8d8d04ffffff e8???????? 8d8504ffffff b9b4733de3 50 8d85b8fbffff }
		$sequence_1 = { 8a4e01 8a46ff 8a7efe 884dfc 32cb 8ae9 8845fe }
		$sequence_2 = { e8???????? 6810270000 ff15???????? 8b15???????? 8d45d4 8b0d???????? 33f6 }
		$sequence_3 = { 6a00 8d8d70f0ffff 51 ffb500f3ffff 56 }
		$sequence_4 = { 57 0f438538f3ffff 50 e8???????? 8bf8 8d8de0f3ffff }
		$sequence_5 = { 8bce e8???????? fec3 6a10 58 80fb0e }
		$sequence_6 = { e8???????? 59 8945e0 3818 755d 837f1410 }
		$sequence_7 = { 8bf0 8d458c 2bf3 56 53 }
		$sequence_8 = { 83ec18 8b5d10 8bcc 50 }
		$sequence_9 = { 663bc3 75f6 2bca 8d856cffffff d1f9 51 }

	condition:
		7 of them and filesize < 368640
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83c418 8d8d04ffffff e8???????? 8d8504ffffff b9b4733de3 50 8d85b8fbffff }
$sequence_1hex{ 8a4e01 8a46ff 8a7efe 884dfc 32cb 8ae9 8845fe }
$sequence_2hex{ e8???????? 6810270000 ff15???????? 8b15???????? 8d45d4 8b0d???????? 33f6 }
$sequence_3hex{ 6a00 8d8d70f0ffff 51 ffb500f3ffff 56 }
$sequence_4hex{ 57 0f438538f3ffff 50 e8???????? 8bf8 8d8de0f3ffff }
$sequence_5hex{ 8bce e8???????? fec3 6a10 58 80fb0e }
$sequence_6hex{ e8???????? 59 8945e0 3818 755d 837f1410 }
$sequence_7hex{ 8bf0 8d458c 2bf3 56 53 }
$sequence_8hex{ 83ec18 8b5d10 8bcc 50 }
$sequence_9hex{ 663bc3 75f6 2bca 8d856cffffff d1f9 51 }

Condition

7 of them and filesize < 368640

In plain words (Heuristic)

  • The file must be smaller than 368640 (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: b468f4ca-e27c-5dd4-8fb9-52480adaac11

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