win_dma_locker_auto

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

Detects win.dma_locker.

rule win_dma_locker_auto {

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

    


    strings:
        $sequence_0 = { 8b5514 8b4510 8b8db4f6ffff 52 50 51 8d95f8f7ffff }
                                                                                                
        $sequence_1 = { 83c404 89442420 89bc24b8060000 3bc7 740e 50 e8???????? }
                                                                                                
        $sequence_2 = { 833d????????00 0f84ef730000 83ec08 0fae5c2404 8b442404 25807f0000 3d801f0000 }
                                                                                                
        $sequence_3 = { 3255fc 8816 8a55fb 8ac2 }
                                                            
        $sequence_4 = { 57 8bf1 d1ee bfffff0f00 2bfe }
                                                                        
        $sequence_5 = { 68???????? 68???????? 6a00 ffd3 6a00 6a41 }
                                                                                    
        $sequence_6 = { 8b742418 6a01 56 e8???????? 8b7620 b967000000 }
                                                                                    
        $sequence_7 = { 57 e8???????? 8b4338 8b4b1c }
                                                            
        $sequence_8 = { 53 56 57 68???????? 50 898558feffff e8???????? }
                                                                                                
        $sequence_9 = { 6a0f 6896000000 6876020000 68be000000 }
                                                            
    condition:
        7 of them and filesize < 532480
}

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

334d81dc-c6aa-489e-82dd-3d17a45e0f84

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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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