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MALPEDIA_Win_Minibike_Auto

autogenerated rule brought to you by yara-signator

MalwareMinibikeMalpedia 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: Minibike.

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

Summary generated from the rule's metadata and condition.

Rule source

win-minibike-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Minibike_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "10124ed0-b566-59f4-839b-dc3adb3c3225"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.minibike"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.minibike_auto.yar#L1-L128"
		license_url = "N/A"
		logic_hash = "5dae1b7452b39b6b25306df7f4da2442d46ae244502091f8a813559b8422aac1"
		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 = { c645fc03 8bd8 83781408 7202 8b18 8b5010 8b45d4 }
		$sequence_1 = { 72dc 8b75e4 85ff 7437 8b45e0 2bc7 c1f802 }
		$sequence_2 = { 83c123 2bc7 83c0fc 83f81f 0f87a6130000 51 57 }
		$sequence_3 = { b8abaaaa2a c7858cfeffff00000000 f7e9 c78584feffff00000000 c1fa02 8bc2 c78588feffff00000000 }
		$sequence_4 = { 8d4da8 c745bc07000000 668945a8 e8???????? c645fc11 807ef800 }
		$sequence_5 = { 57 ff95d8fdffff 83bdd4fdffff00 8bb508feffff 0f85d8fdffff 53 e8???????? }
		$sequence_6 = { 83c123 2bc3 83c0fc 83f81f 0f874c010000 51 }
		$sequence_7 = { 83f81f 0f877e080000 51 56 e8???????? 83c408 }
		$sequence_8 = { 50 51 8d8dc4fdffff 0f1185b4fcffff }
		$sequence_9 = { 0f2805???????? 50 51 8d8df4f3ffff c78568f3ffff05000000 0f118558f3ffff e8???????? }

	condition:
		7 of them and filesize < 574464
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c645fc03 8bd8 83781408 7202 8b18 8b5010 8b45d4 }
$sequence_1hex{ 72dc 8b75e4 85ff 7437 8b45e0 2bc7 c1f802 }
$sequence_2hex{ 83c123 2bc7 83c0fc 83f81f 0f87a6130000 51 57 }
$sequence_3hex{ b8abaaaa2a c7858cfeffff00000000 f7e9 c78584feffff00000000 c1fa02 8bc2 c78588feffff00000000 }
$sequence_4hex{ 8d4da8 c745bc07000000 668945a8 e8???????? c645fc11 807ef800 }
$sequence_5hex{ 57 ff95d8fdffff 83bdd4fdffff00 8bb508feffff 0f85d8fdffff 53 e8???????? }
$sequence_6hex{ 83c123 2bc3 83c0fc 83f81f 0f874c010000 51 }
$sequence_7hex{ 83f81f 0f877e080000 51 56 e8???????? 83c408 }
$sequence_8hex{ 50 51 8d8dc4fdffff 0f1185b4fcffff }
$sequence_9hex{ 0f2805???????? 50 51 8d8df4f3ffff c78568f3ffff05000000 0f118558f3ffff e8???????? }

Condition

7 of them and filesize < 574464

In plain words (Heuristic)

  • The file must be smaller than 574464 (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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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: 10124ed0-b566-59f4-839b-dc3adb3c3225

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