win_retefe_auto

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

Detects win.retefe.

rule win_retefe_auto {

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

    


    strings:
        $sequence_0 = { 68f5000000 50 ff15???????? b801000000 }
                                                            
        $sequence_1 = { 51 8bf8 ffd6 85c0 }
                                                            
        $sequence_2 = { 52 e8???????? 8b4e04 8901 8b4e04 33c0 }
                                                                                    
        $sequence_3 = { e8???????? 6a08 e8???????? 894604 83c404 8bc6 }
                                                                                    
        $sequence_4 = { 6adb 6a1c 6ad8 6a2f }
                                                            
        $sequence_5 = { 6a4f 6a82 6a74 6a87 6a50 }
                                                                        
        $sequence_6 = { 6a21 6ac0 6a2c 6ab1 }
                                                            
        $sequence_7 = { 880c10 8b4e04 40 3b4104 }
                                                            
        $sequence_8 = { 6a14 6aea 6abe 6a2b }
                                                            
        $sequence_9 = { 6af2 6a82 6a8f 6a0b e8???????? 83c430 }
                                                                                    
        $sequence_10 = { 6ae5 6a45 6a5b 6acf }
                                                            
        $sequence_11 = { 8b4e04 33c0 83c404 394104 }
                                                            
        $sequence_12 = { 8d85f4feffff 8bce e8???????? 8b4614 }
                                                            
        $sequence_13 = { 50 e8???????? 88043e 46 83c404 3bf3 75ec }
                                                                                                
        $sequence_14 = { 668908 8d85c4efffff bf???????? 50 }
                                                            
        $sequence_15 = { 8364240400 56 57 8b7c2418 57 }
                                                                        
        $sequence_16 = { 6bf030 03348da0bf4200 837e18ff 740c 837e18fe 7406 }
                                                                                    
        $sequence_17 = { e8???????? 83a6a0bf420000 59 83c604 81fe00020000 72dd b001 }
                                                                                                
        $sequence_18 = { 83c001 89442414 0f8429010000 55 }
                                                            
        $sequence_19 = { 83e03f c1ff06 6bd830 8b04bda0bf4200 }
                                                            
        $sequence_20 = { 894c243c 8d48fd 83e10f 8d7007 }
                                                            
        $sequence_21 = { c70021000000 e9???????? 894ddc c745e008344100 e9???????? c745e004344100 }
                                                                                    
        $sequence_22 = { 40 83f81d 7cf1 eb07 8b0cc5fc3c4100 }
                                                                        
        $sequence_23 = { 8d442410 50 ffd3 8b450c 2dd0070000 }
                                                                        
        $sequence_24 = { f2c3 f2e953070000 53 56 57 6a00 68a00f0000 }
                                                                                                
        $sequence_25 = { 56 e8???????? 85c0 0f8425ffffff 56 }
                                                                        
        $sequence_26 = { 8bfe e9???????? 33db 33c0 }
                                                            
        $sequence_27 = { 0f87ed010000 ff24855c664000 ff36 68???????? 6a00 }
                                                                        
        $sequence_28 = { 756e 85d2 756a 8b3d???????? 8db7ff1f0000 }
                                                                        
        $sequence_29 = { c745fcffffffff 8935???????? 8b06 51 8bfc }
                                                                        
    condition:
        7 of them and filesize < 843776
}

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

21bca7ca-c4a7-468e-b61e-2c499f761b9c

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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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