win_dratzarus_auto

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

Detects win.dratzarus.

rule win_dratzarus_auto {

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

    


    strings:
        $sequence_0 = { 488905???????? e8???????? 488bcb 488bd0 ff15???????? 488d8da0000000 ba0e000000 }
                                                                                                
        $sequence_1 = { 488905???????? e8???????? 488bcb 488bd0 ff15???????? 488d8d78030000 ba15000000 }
                                                                                                
        $sequence_2 = { eb04 8b442430 488b4c2448 4833cc e8???????? 488b5c2478 4883c450 }
                                                                                                
        $sequence_3 = { 488bd0 ff15???????? 488d8d80000000 ba14000000 488905???????? e8???????? }
                                                                                    
        $sequence_4 = { c785e8000000961a40af 66c785ec00000072ff c685ee000000e4 c785a00000005f70777c }
                                                            
        $sequence_5 = { 89742450 6689b510020000 48898512020000 4889851a020000 66898522020000 6689b500030000 e8???????? }
                                                                                                
        $sequence_6 = { 8d0c52 442bd9 7526 e8???????? 448bd8 b84fecc44e }
                                                                                    
        $sequence_7 = { 0fb785ec000000 440fb6642440 6689442444 0fb6442445 0fb6542444 }
                                                                        
        $sequence_8 = { 488d8d90030000 ba15000000 488905???????? e8???????? 488bcb 488bd0 ff15???????? }
                                                                                                
        $sequence_9 = { 488d4de0 ba16000000 e8???????? 488bcb 488bd0 ff15???????? 488b5c2460 }
                                                                                                
    condition:
        7 of them and filesize < 1606656
}

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

e7fe0b21-ff2d-4273-b19f-8b81e6b57310

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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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