YARA · Malpedia signator rules
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:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "031d3005-b442-55d4-8d83-1a297eb7be2c"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.broomstick"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.broomstick_auto.yar#L1-L269"
= "N/A"
= "b9e0193d35c0132cc23484b7b930b099a5ae3a5afda8520f3677e1992f92723f"
= 75
= 73
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "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)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 76f3 2bc2 83c002 99 83e203 03c2 c1f802 } | |
| $sequence_1 | hex | { 8b75d0 2bc6 894ddc 51 } | |
| $sequence_2 | hex | { 0fb608 40 80b9????????3f 76f3 2bc2 } | |
| $sequence_3 | hex | { c6400100 8808 eb13 ff75e8 } | |
| $sequence_4 | hex | { 51 50 51 8bce e8???????? 8b4dec } | |
| $sequence_5 | hex | { 33c0 c7467000000000 c7467407000000 66894660 } | |
| $sequence_6 | hex | { 56 e8???????? 8b45dc 83c40c c6040600 eb10 } | |
| $sequence_7 | hex | { 51 50 e8???????? 83c408 33c0 c7467000000000 } | |
| $sequence_8 | hex | { ba01000000 488d8120630400 ffd0 488b05???????? } | |
| $sequence_9 | hex | { 49898688150400 488d4c2428 ffd5 48b80b8b55f8b9616cd5 } | |
| $sequence_10 | hex | { 49898688410300 b9f0712400 4c8b25???????? 41ffd4 } | |
| $sequence_11 | hex | { 49898688430300 4889f1 ba97000000 41b8cb000000 } | |
| $sequence_12 | hex | { 49898688140400 4889f1 4889fa 4c8b3d???????? 41ffd7 4889f1 ba0a000000 } | |
| $sequence_13 | hex | { ba01000000 488bf8 ff15???????? 488d8d80050000 } | |
| $sequence_14 | hex | { 488d15e9640100 ff15???????? 4885c0 7412 49ba707b5a5e9b8701a2 } | |
| $sequence_15 | hex | { 49898688360300 488d4c2420 41ffd7 4889f1 } | |
| $sequence_16 | hex | { 49898688160400 b917d46400 41ffd4 4889c7 } | |
| $sequence_17 | hex | { ba01000000 488bd8 ff15???????? 488bd6 } | |
| $sequence_18 | hex | { ba01000000 49898602940300 488bcf 48b81e53fbe65dc7397c } | |
| $sequence_19 | hex | { ba01000000 488bf0 ff15???????? 4533c9 } | |
| $sequence_20 | hex | { 488d1500520300 eb2a 418bc8 e8???????? 0f57c0 } | |
| $sequence_21 | hex | { ba01000000 488bcf ff15???????? ba32ac0600 488bcf } | |
| $sequence_22 | hex | { ba01000000 49898612ff0300 488bcf 48b81f58d5789b9e337f } | |
| $sequence_23 | hex | { 48c1e203 490314de eb07 488d15e5150200 } | |
| $sequence_24 | hex | { e8???????? 488b442420 4c8b4818 4d85c9 } | |
| $sequence_25 | hex | { 83f801 7516 488d05a2ab0100 488b4c2430 483bc8 } | |
| $sequence_26 | hex | { ba01000000 49898565230300 488bce 48b8234a9581780326f6 } | |
| $sequence_27 | hex | { 4c89bc2460100000 ff15???????? 4c8bf8 4885c0 } | |
| $sequence_28 | hex | { 49898688320300 b9bc474300 41ffd4 4889c7 } | |
| $sequence_29 | hex | { 49898688420300 48b8111ed81f4f83a99f 49898690420300 488d4c2420 } | |
| $sequence_30 | hex | { 4c2bc0 ba22000000 488bc8 e8???????? 4885c0 } |
Condition
7 of them and filesize < 1567744In 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
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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)
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
| 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 |
Tags:FILE
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