win_comebacker_auto

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

Detects win.comebacker.

rule win_comebacker_auto {

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

    


    strings:
        $sequence_0 = { 6683f809 7f04 0430 eb02 }
                                                            
        $sequence_1 = { e8???????? e8???????? 8bf8 b867666666 }
                                                            
        $sequence_2 = { 4889742440 e8???????? 488bf0 4885c0 0f84a3010000 488b4b08 }
                                                                                    
        $sequence_3 = { 4c8d054fb70300 41b93b020000 8d4aeb e8???????? b801000000 }
                                                                        
        $sequence_4 = { 448bc6 442bc0 488b442450 488d0d57be0600 488b0cc1 44897c2444 }
                                                                                    
        $sequence_5 = { 498d4e07 448d4210 e8???????? 448be0 }
                                                            
        $sequence_6 = { 48894370 4885c0 7529 4c8d0ddce80300 8d507b 8d4806 }
                                                                                    
        $sequence_7 = { 486bd258 490394c140480a00 f6423880 742b e8???????? }
                                                                        
        $sequence_8 = { e8???????? 83c40c 8d8d8cf6ffff 51 8d55e8 52 }
                                                                                    
        $sequence_9 = { 6aff 68???????? 6800020000 53 ff15???????? e8???????? 3bc3 }
                                                                                                
        $sequence_10 = { 6a00 6a00 8bf0 8d8570ffffff 6a00 50 e8???????? }
                                                                                                
        $sequence_11 = { 8944242c 8b1c9538500410 8b542414 c1ea18 }
                                                            
        $sequence_12 = { 83c43c 8903 5f 8bc6 33cd 5e }
                                                                                    
        $sequence_13 = { 03c0 8d9dc8f8ffff 8985c8f8ffff e8???????? 8bbdc8f8ffff 6802200300 }
                                                                                    
        $sequence_14 = { 8b0485e01f0910 c644080401 57 e8???????? }
                                                            
    condition:
        7 of them and filesize < 1429504
}

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

0c2f487e-4508-453b-9406-f525799e338d

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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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