win_maktub_auto

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

Detects win.maktub.

rule win_maktub_auto {

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

    


    strings:
        $sequence_0 = { ffd0 f7d8 1bc0 f7d8 8be5 }
                                                                        
        $sequence_1 = { ff15???????? eb02 33db 8b4df4 }
                                                            
        $sequence_2 = { ff15???????? eb0a 57 6a08 }
                                                            
        $sequence_3 = { ff15???????? f6c301 0f8414010000 8d46fc }
                                                            
        $sequence_4 = { ff15???????? ff75f8 ff15???????? 5f 5e b801000000 }
                                                                                    
        $sequence_5 = { ff15???????? eb02 33c0 46 03f0 3b75e0 }
                                                                                    
        $sequence_6 = { ff15???????? f6c301 7432 8b75b8 }
                                                            
        $sequence_7 = { ff7508 ffd7 50 ffd6 53 }
                                                                        
        $sequence_8 = { ff30 e8???????? 8bc7 5f 5e 5b }
                                                                                    
        $sequence_9 = { 8d55e4 8d4dc4 e8???????? 8bc8 }
                                                            
        $sequence_10 = { 8d55e4 8d4dec e8???????? 8bce e8???????? 8b4df4 }
                                                                                    
        $sequence_11 = { 8d4383 d1f1 10149d891be6fc ae }
                                                            
        $sequence_12 = { 8d55dc 8d8d5cffffff e8???????? 8bd0 }
                                                            
        $sequence_13 = { 8d433f e4f2 90 2ab432f35979e3 }
                                                            
        $sequence_14 = { 8d4310 50 e8???????? 8b7d10 }
                                                            
        $sequence_15 = { 8d55e8 8bc8 e8???????? 8b4dfc }
                                                            
        $sequence_16 = { 8d4320 57 50 e8???????? 83c40c c786f800000001000000 }
                                                                                    
        $sequence_17 = { 8d55e0 8d4d9c e8???????? 8bd0 8d4dcc e8???????? }
                                                                                    
        $sequence_18 = { 8d4320 50 ff7360 51 ff74242c }
                                                                        
        $sequence_19 = { 8d55e4 8bc8 e8???????? 8b4df4 }
                                                            
        $sequence_20 = { 8d55ac 8d4d9c e8???????? 8bd0 8d8d74ffffff e8???????? }
                                                                                    
        $sequence_21 = { 8d43eb 83f804 0f8732030000 ff24850cd94300 }
                                                            
    condition:
        7 of them and filesize < 3063808
}

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

b79d11e1-79f4-497d-a98f-686c2d11f409

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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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