win_netkey_auto

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

Detects win.netkey.

rule win_netkey_auto {

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

    


    strings:
        $sequence_0 = { 8d85ccfdffff 50 56 ff15???????? 85c0 75b6 8bbdc8fdffff }
                                                                                                
        $sequence_1 = { 8d044df0ffffff 8d8d30ffffff 2bd0 03c8 8d8530ffffff 2bd0 0fb701 }
                                                                                                
        $sequence_2 = { 33f6 90 8d4df0 c745f02c010000 51 6a00 8d8de4feffff }
                                                                                                
        $sequence_3 = { 8bec 836d0801 7414 8b0d???????? 6a00 e8???????? 83c404 }
                                                                                                
        $sequence_4 = { 75f9 2bca 8bd6 894e04 }
                                                            
        $sequence_5 = { 56 8b7508 81c190000000 6aff 6a00 }
                                                                        
        $sequence_6 = { e8???????? 8d4db4 e8???????? be01000000 8d4de4 e8???????? }
                                                                                    
        $sequence_7 = { 8b8520ffffff 8b5004 8d4af8 898c151cffffff 8d4588 }
                                                                        
        $sequence_8 = { 88441628 8b0cbda8214400 c644112900 837dfc00 7507 b800800000 eb1e }
                                                                                                
        $sequence_9 = { 8a45fb 88043e 46 3bf3 }
                                                            
    condition:
        7 of them and filesize < 606208
}

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

eca503cd-c8c3-4f5a-a584-5b216e26b17e

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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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