win_killdisk_auto

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

Detects win.killdisk.

rule win_killdisk_auto {

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

    


    strings:
        $sequence_0 = { 55 56 8d542408 e8???????? }
                                                            
        $sequence_1 = { 881438 e8???????? 9c c6442408cf 894508 }
                                                                        
        $sequence_2 = { ff15???????? 6a2c e8???????? 8b2d???????? }
                                                            
        $sequence_3 = { 8d642430 e9???????? ff742404 66894500 }
                                                            
        $sequence_4 = { 85c0 750e 56 b301 ff15???????? }
                                                                        
        $sequence_5 = { 5e 32c0 5d c3 85ed 7635 }
                                                                                    
        $sequence_6 = { 8b4500 eb02 8bc5 8d3c58 }
                                                            
        $sequence_7 = { e8???????? d2cd 80d213 66c1e204 8b5500 f8 66c1d902 }
                                                                                                
        $sequence_8 = { 55 8bec 83e4f8 83ec0c 85f6 57 }
                                                                                    
        $sequence_9 = { 60 9c 8f442428 882424 881c24 e8???????? d2cd }
                                                                                                
        $sequence_10 = { e8???????? 8b8c2430080000 83c404 84c0 }
                                                            
        $sequence_11 = { c1e81f 03c2 3bc8 7331 8b7e08 c644241000 }
                                                                                    
        $sequence_12 = { c64424044f 8d642454 e9???????? 880424 8774242c 9c }
                                                                                    
        $sequence_13 = { d035???????? d6 d487 ce be37b14781 7855 ce }
                                                                                                
        $sequence_14 = { e9???????? e9???????? e9???????? f3a4 81d66e3ddd77 8b7c2430 66d3fe }
                                                                                                
        $sequence_15 = { 6816cc2923 46 66892c24 9c 8d64244c e9???????? 9c }
                                                                                                
    condition:
        7 of them and filesize < 10817536
}

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

f7e88ae8-ffe5-4387-bb42-8f585e967dd5

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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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