win_beepservice_auto

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

Detects win.beepservice.

rule win_beepservice_auto {

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

    


    strings:
        $sequence_0 = { 8b0d???????? 68???????? ffd6 8bc8 ff15???????? 50 }
                                                                                    
        $sequence_1 = { e8???????? 83c408 e9???????? 68???????? e8???????? 83c404 6a00 }
                                                                                                
        $sequence_2 = { e8???????? 83f801 7505 e8???????? 68???????? 68???????? }
                                                                                    
        $sequence_3 = { 7512 6888130000 68???????? e8???????? }
                                                            
        $sequence_4 = { 683f000f00 6a00 68???????? ff15???????? }
                                                            
        $sequence_5 = { ff15???????? 50 68???????? e8???????? 83c408 68f4010000 }
                                                                                    
        $sequence_6 = { ff760c ff15???????? 33ff 6a14 57 }
                                                                        
        $sequence_7 = { e8???????? 50 ff7608 68???????? e8???????? 83c444 }
                                                                                    
        $sequence_8 = { 57 55 e8???????? 6a28 bb???????? 57 }
                                                                                    
        $sequence_9 = { 68???????? e8???????? 59 6a01 58 eb15 }
                                                                                    
        $sequence_10 = { 8d442410 6a02 50 55 e8???????? }
                                                                        
        $sequence_11 = { 59 ff7604 e8???????? 83f814 }
                                                            
        $sequence_12 = { ff15???????? 59 33c0 eb03 6a01 }
                                                                        
        $sequence_13 = { 83e103 f3a4 668915???????? 8b7310 8bfe 83c9ff }
                                                                                    
        $sequence_14 = { 8b1d???????? 55 33ed 68f4010000 }
                                                            
        $sequence_15 = { 740f 837c241804 741e 45 83fd0a }
                                                                        
        $sequence_16 = { 8b450c 8b4818 51 e8???????? 83c404 83f820 7314 }
                                                                                                
        $sequence_17 = { 8b4d08 51 8b0d???????? ff15???????? }
                                                            
        $sequence_18 = { 83c40c 6a20 6a00 68???????? e8???????? 83c40c }
                                                                                    
        $sequence_19 = { 6a03 e8???????? 83c414 e9???????? a1???????? 85c0 }
                                                                                    
        $sequence_20 = { 668b0d???????? 51 ff15???????? 668bf0 }
                                                            
        $sequence_21 = { 89442414 8b442434 51 52 }
                                                            
        $sequence_22 = { c3 6888130000 6a03 6a00 6a00 }
                                                                        
        $sequence_23 = { 6a00 56 57 ff15???????? 8b45e4 85c0 }
                                                                                    
        $sequence_24 = { ff15???????? 85c0 a3???????? 7510 ff15???????? 50 e8???????? }
                                                                                                
        $sequence_25 = { c744240010000000 89442404 83e802 f7d8 1bc0 83e007 89442408 }
                                                                                                
        $sequence_26 = { eb08 c744240c2a040000 8b54242c 8d4c2400 89542414 8b15???????? }
                                                                                    
    condition:
        7 of them and filesize < 253952
}

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

65113b87-bc4f-4013-a46d-f86fe2cadb8a

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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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