win_dramnudge_auto

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

Detects win.dramnudge.

rule win_dramnudge_auto {

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

    


    strings:
        $sequence_0 = { 3db4000000 7d17 a3???????? ff75d8 68???????? e8???????? }
                                                                                    
        $sequence_1 = { 56 57 43 33c0 8bfb 83c9ff }
                                                                                    
        $sequence_2 = { 89bd6cfeffff 8b4580 898568feffff 8b5598 899564feffff ffb56cfeffff ffb568feffff }
                                                                                                
        $sequence_3 = { e8???????? 83c40c 85ff 741a 57 8b5514 03551c }
                                                                                                
        $sequence_4 = { 66c746106800 8b45ac 8b50f4 42 85d2 7e51 }
                                                                                    
        $sequence_5 = { e9???????? 6a02 6a00 8b4b24 51 53 e8???????? }
                                                                                                
        $sequence_6 = { 891d???????? c74318f0030000 c6433001 8b07 a3???????? 8b55ac 64891500000000 }
                                                                                                
        $sequence_7 = { 33c9 894a40 6a04 e8???????? 59 8945fc 85c0 }
                                                                                                
        $sequence_8 = { 83c408 eb27 6a02 53 }
                                                            
        $sequence_9 = { 53 56 57 8b7d10 8b750c 3bfe 7602 }
                                                                                                
    condition:
        7 of them and filesize < 1294336
}

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

e7d06ab2-3e23-44ca-b4f6-ace1d8eb79fe

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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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