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MALPEDIA_Win_Broomstick_Auto

autogenerated rule brought to you by yara-signator

MalwareBroomstickMalpedia 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 / 73

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Broomstick.

It defines 31 patterns (0 text, 31 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-broomstick-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Broomstick_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "031d3005-b442-55d4-8d83-1a297eb7be2c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.broomstick"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.broomstick_auto.yar#L1-L269"
		license_url = "N/A"
		logic_hash = "b9e0193d35c0132cc23484b7b930b099a5ae3a5afda8520f3677e1992f92723f"
		score = 75
		quality = 73
		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 = { 76f3 2bc2 83c002 99 83e203 03c2 c1f802 }
		$sequence_1 = { 8b75d0 2bc6 894ddc 51 }
		$sequence_2 = { 0fb608 40 80b9????????3f 76f3 2bc2 }
		$sequence_3 = { c6400100 8808 eb13 ff75e8 }
		$sequence_4 = { 51 50 51 8bce e8???????? 8b4dec }
		$sequence_5 = { 33c0 c7467000000000 c7467407000000 66894660 }
		$sequence_6 = { 56 e8???????? 8b45dc 83c40c c6040600 eb10 }
		$sequence_7 = { 51 50 e8???????? 83c408 33c0 c7467000000000 }
		$sequence_8 = { ba01000000 488d8120630400 ffd0 488b05???????? }
		$sequence_9 = { 49898688150400 488d4c2428 ffd5 48b80b8b55f8b9616cd5 }
		$sequence_10 = { 49898688410300 b9f0712400 4c8b25???????? 41ffd4 }
		$sequence_11 = { 49898688430300 4889f1 ba97000000 41b8cb000000 }
		$sequence_12 = { 49898688140400 4889f1 4889fa 4c8b3d???????? 41ffd7 4889f1 ba0a000000 }
		$sequence_13 = { ba01000000 488bf8 ff15???????? 488d8d80050000 }
		$sequence_14 = { 488d15e9640100 ff15???????? 4885c0 7412 49ba707b5a5e9b8701a2 }
		$sequence_15 = { 49898688360300 488d4c2420 41ffd7 4889f1 }
		$sequence_16 = { 49898688160400 b917d46400 41ffd4 4889c7 }
		$sequence_17 = { ba01000000 488bd8 ff15???????? 488bd6 }
		$sequence_18 = { ba01000000 49898602940300 488bcf 48b81e53fbe65dc7397c }
		$sequence_19 = { ba01000000 488bf0 ff15???????? 4533c9 }
		$sequence_20 = { 488d1500520300 eb2a 418bc8 e8???????? 0f57c0 }
		$sequence_21 = { ba01000000 488bcf ff15???????? ba32ac0600 488bcf }
		$sequence_22 = { ba01000000 49898612ff0300 488bcf 48b81f58d5789b9e337f }
		$sequence_23 = { 48c1e203 490314de eb07 488d15e5150200 }
		$sequence_24 = { e8???????? 488b442420 4c8b4818 4d85c9 }
		$sequence_25 = { 83f801 7516 488d05a2ab0100 488b4c2430 483bc8 }
		$sequence_26 = { ba01000000 49898565230300 488bce 48b8234a9581780326f6 }
		$sequence_27 = { 4c89bc2460100000 ff15???????? 4c8bf8 4885c0 }
		$sequence_28 = { 49898688320300 b9bc474300 41ffd4 4889c7 }
		$sequence_29 = { 49898688420300 48b8111ed81f4f83a99f 49898690420300 488d4c2420 }
		$sequence_30 = { 4c2bc0 ba22000000 488bc8 e8???????? 4885c0 }

	condition:
		7 of them and filesize < 1567744
}

Strings (31 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 76f3 2bc2 83c002 99 83e203 03c2 c1f802 }
$sequence_1hex{ 8b75d0 2bc6 894ddc 51 }
$sequence_2hex{ 0fb608 40 80b9????????3f 76f3 2bc2 }
$sequence_3hex{ c6400100 8808 eb13 ff75e8 }
$sequence_4hex{ 51 50 51 8bce e8???????? 8b4dec }
$sequence_5hex{ 33c0 c7467000000000 c7467407000000 66894660 }
$sequence_6hex{ 56 e8???????? 8b45dc 83c40c c6040600 eb10 }
$sequence_7hex{ 51 50 e8???????? 83c408 33c0 c7467000000000 }
$sequence_8hex{ ba01000000 488d8120630400 ffd0 488b05???????? }
$sequence_9hex{ 49898688150400 488d4c2428 ffd5 48b80b8b55f8b9616cd5 }
$sequence_10hex{ 49898688410300 b9f0712400 4c8b25???????? 41ffd4 }
$sequence_11hex{ 49898688430300 4889f1 ba97000000 41b8cb000000 }
$sequence_12hex{ 49898688140400 4889f1 4889fa 4c8b3d???????? 41ffd7 4889f1 ba0a000000 }
$sequence_13hex{ ba01000000 488bf8 ff15???????? 488d8d80050000 }
$sequence_14hex{ 488d15e9640100 ff15???????? 4885c0 7412 49ba707b5a5e9b8701a2 }
$sequence_15hex{ 49898688360300 488d4c2420 41ffd7 4889f1 }
$sequence_16hex{ 49898688160400 b917d46400 41ffd4 4889c7 }
$sequence_17hex{ ba01000000 488bd8 ff15???????? 488bd6 }
$sequence_18hex{ ba01000000 49898602940300 488bcf 48b81e53fbe65dc7397c }
$sequence_19hex{ ba01000000 488bf0 ff15???????? 4533c9 }
$sequence_20hex{ 488d1500520300 eb2a 418bc8 e8???????? 0f57c0 }
$sequence_21hex{ ba01000000 488bcf ff15???????? ba32ac0600 488bcf }
$sequence_22hex{ ba01000000 49898612ff0300 488bcf 48b81f58d5789b9e337f }
$sequence_23hex{ 48c1e203 490314de eb07 488d15e5150200 }
$sequence_24hex{ e8???????? 488b442420 4c8b4818 4d85c9 }
$sequence_25hex{ 83f801 7516 488d05a2ab0100 488b4c2430 483bc8 }
$sequence_26hex{ ba01000000 49898565230300 488bce 48b8234a9581780326f6 }
$sequence_27hex{ 4c89bc2460100000 ff15???????? 4c8bf8 4885c0 }
$sequence_28hex{ 49898688320300 b9bc474300 41ffd4 4889c7 }
$sequence_29hex{ 49898688420300 48b8111ed81f4f83a99f 49898690420300 488d4c2420 }
$sequence_30hex{ 4c2bc0 ba22000000 488bc8 e8???????? 4885c0 }

Condition

7 of them and filesize < 1567744

In plain words (Heuristic)

  • The file must be smaller than 1567744 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

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: 031d3005-b442-55d4-8d83-1a297eb7be2c

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