win_broomstick_auto

YARA detection rule by Felix Bilstein - yara-signator at cocacoding dot com

Detects win.broomstick.

rule win_broomstick_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.broomstick."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.broomstick"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    


    strings:
        $sequence_0 = { 2bc2 83c002 99 83e203 03c2 }
                                                                        
        $sequence_1 = { 8b45d4 8b75d0 2bc6 894ddc 51 52 3bc8 }
                                                                                                
        $sequence_2 = { c6400100 8808 eb13 ff75e8 }
                                                            
        $sequence_3 = { 80b9????????3f 76f3 2bc2 83c002 }
                                                            
        $sequence_4 = { 03f0 56 e8???????? 8b45dc 83c40c c6040600 }
                                                                                    
        $sequence_5 = { 83c40c c6040600 eb10 c645dc00 }
                                                            
        $sequence_6 = { 51 50 51 8bce e8???????? 8b4dec }
                                                                                    
        $sequence_7 = { 83c408 33c0 c7467000000000 c7467407000000 66894660 }
                                                                        
        $sequence_8 = { 49898688490300 488d4c2420 41ffd4 4889f1 }
                                                            
        $sequence_9 = { ba01000000 488bf0 ff15???????? 4533c9 }
                                                            
        $sequence_10 = { 49898688420300 48b8111ed81f4f83a99f 49898690420300 488d4c2420 }
                                                            
        $sequence_11 = { 49898688410300 b9f0712400 4c8b25???????? 41ffd4 }
                                                            
        $sequence_12 = { ba01000000 488d8120630400 ffd0 488b05???????? }
                                                            
        $sequence_13 = { ba01000000 49898565230300 488bce 48b8234a9581780326f6 }
                                                            
        $sequence_14 = { 49898688680300 4889f1 4889fa 4c8b2d???????? }
                                                            
        $sequence_15 = { ba01000000 49898602940300 488bcf 48b81e53fbe65dc7397c }
                                                            
        $sequence_16 = { 668930 488d9300010000 4883bb1801000007 7607 }
                                                            
        $sequence_17 = { ba01000000 488bf8 ff15???????? 488d8d80050000 }
                                                            
        $sequence_18 = { 668930 488d5320 48837b3807 7604 }
                                                            
        $sequence_19 = { ba01000000 488bd8 ff15???????? 488bd6 }
                                                            
        $sequence_20 = { ba01000000 488bcf ff15???????? ba93383100 488bcf }
                                                                        
        $sequence_21 = { 49898688320300 b9bc474300 41ffd4 4889c7 4889c1 }
                                                                        
        $sequence_22 = { 49898688430300 4889f1 ba97000000 41b8cb000000 }
                                                            
        $sequence_23 = { 668930 488b542438 4883fa07 7637 488d145502000000 488b4c2420 488bc1 }
                                                                                                
        $sequence_24 = { 49898688360300 488d4c2420 41ffd7 4889f1 }
                                                            
        $sequence_25 = { ba01000000 49898612ff0300 488bcf 48b81f58d5789b9e337f }
                                                            
        $sequence_26 = { 668930 488d9320010000 4883bb3801000007 7607 }
                                                            
        $sequence_27 = { 668930 488d5517 48837d2f07 480f475517 }
                                                            
        $sequence_28 = { 498986885f0300 4889f1 ba02000000 ffd3 }
                                                            
        $sequence_29 = { 668930 488d5340 48837b5807 7604 }
                                                            
        $sequence_30 = { 668930 488b559f 4883fa07 7636 }
                                                            
    condition:
        7 of them and filesize < 1567744
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

110ace34-44f5-4810-a45a-9dcab770783d

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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