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MALPEDIA_Win_Minibus_Auto

autogenerated rule brought to you by yara-signator

MalwareMinibusMalpedia 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: Minibus.

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

Summary generated from the rule's metadata and condition.

Rule source

win-minibus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Minibus_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "3c876e13-ffc9-5d40-abf3-af4877d9ddbb"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.minibus"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.minibus_auto.yar#L1-L120"
		license_url = "N/A"
		logic_hash = "353f1ee48b346ff5b65682901348afe0765a3eb1fbf5ad21bca409f094f49962"
		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 = { 81f900100000 7227 8d4123 3bc1 7674 }
		$sequence_1 = { 7202 8b1f 8b4f10 894dd8 }
		$sequence_2 = { ff15???????? 57 56 e8???????? 8b5510 83c40c 85d2 }
		$sequence_3 = { 894dd8 8d0409 8d1418 8945e8 8955f8 8bd0 }
		$sequence_4 = { 0f4255e0 894dec 85d2 7429 8b45f4 }
		$sequence_5 = { 8975f4 8945e4 83f808 7205 8b0e 894df4 }
		$sequence_6 = { c70700000000 c7471000000000 c7471400000000 83781410 }
		$sequence_7 = { 2bda 8d43fc 83f81f 7719 8bda 51 }
		$sequence_8 = { 765a 51 e8???????? 83c404 85c0 740b 8d7823 }
		$sequence_9 = { 8b4de4 83f908 7234 8b55d0 8d0c4d02000000 8bc2 }

	condition:
		7 of them and filesize < 324608
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 81f900100000 7227 8d4123 3bc1 7674 }
$sequence_1hex{ 7202 8b1f 8b4f10 894dd8 }
$sequence_2hex{ ff15???????? 57 56 e8???????? 8b5510 83c40c 85d2 }
$sequence_3hex{ 894dd8 8d0409 8d1418 8945e8 8955f8 8bd0 }
$sequence_4hex{ 0f4255e0 894dec 85d2 7429 8b45f4 }
$sequence_5hex{ 8975f4 8945e4 83f808 7205 8b0e 894df4 }
$sequence_6hex{ c70700000000 c7471000000000 c7471400000000 83781410 }
$sequence_7hex{ 2bda 8d43fc 83f81f 7719 8bda 51 }
$sequence_8hex{ 765a 51 e8???????? 83c404 85c0 740b 8d7823 }
$sequence_9hex{ 8b4de4 83f908 7234 8b55d0 8d0c4d02000000 8bc2 }

Condition

7 of them and filesize < 324608

In plain words (Heuristic)

  • The file must be smaller than 324608 (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: 3c876e13-ffc9-5d40-abf3-af4877d9ddbb

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

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