win_beatdrop_auto

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

Detects win.beatdrop.

rule win_beatdrop_auto {

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

    


    strings:
        $sequence_0 = { 4133948c00080000 89c1 0fb6ef 440fb6c2 c1e918 418b0c8c 43338c84000c0000 }
                                                                                                
        $sequence_1 = { 45339c8d00080000 4489c1 41c1e918 478b4c8d00 45338c9d000c0000 }
                                                                        
        $sequence_2 = { 4733bc8500040000 4533bc9d00080000 0fb6ce 4589f2 4589f9 4189c0 894c2404 }
                                                                                                
        $sequence_3 = { 0fb6db 4189f3 418b448500 33555c 41c1eb18 }
                                                                        
        $sequence_4 = { 488384248800000010 0f1100 483b7c2420 7434 488b442428 4809f8 a807 }
                                                                                                
        $sequence_5 = { c1ee18 c1ea10 338590000000 458b74b500 4489c1 0fb6d2 }
                                                                                    
        $sequence_6 = { 418b1484 4489c0 43339494000c0000 4589c2 c1e810 339690000000 41c1ea18 }
                                                                                                
        $sequence_7 = { 448b4c240c 410fcb 44895904 470fb60c0c 41c1e118 4531c8 }
                                                                                    
        $sequence_8 = { 45338c9d000c0000 4489c3 450fb6c0 c1eb10 }
                                                            
        $sequence_9 = { 4489c8 450fb6c9 c1e818 418b0484 43338494000c0000 4189da c1eb18 }
                                                                                                
    condition:
        7 of them and filesize < 584704
}

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

d9cd6771-1ac7-4f73-b40e-1fefc8e47c6e

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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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