win_blacksoul_auto

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

Detects win.blacksoul.

rule win_blacksoul_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.blacksoul."
        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.blacksoul"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    


    strings:
        $sequence_0 = { 50 8d4da8 e8???????? 8d45c0 c645fc02 50 }
                                                                                    
        $sequence_1 = { 58 ebef 56 8bf1 8d4e28 }
                                                                        
        $sequence_2 = { b8???????? e8???????? 83ec0c 56 8bf1 57 6a18 }
                                                                                                
        $sequence_3 = { c21400 55 8bec 8b4508 83781408 8b5010 7202 }
                                                                                                
        $sequence_4 = { c20c00 807f4a00 7418 8b7508 8d4f28 51 }
                                                                                    
        $sequence_5 = { 46 41 894d9c 8bcb }
                                                            
        $sequence_6 = { 895dfc 895dc8 894dcc 668945b8 c645fc01 }
                                                                        
        $sequence_7 = { 8845a3 884590 8845a1 e8???????? 59 59 }
                                                                                    
        $sequence_8 = { 59 59 84c0 0f841d010000 807b0400 }
                                                                        
        $sequence_9 = { 7408 80f939 7510 c60730 8b857cffffff 4f }
                                                                                    
    condition:
        7 of them and filesize < 1823640
}

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

ac67b169-96a7-4b1a-a652-709f4f8b4bd4

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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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