win_prikormka_auto

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

Detects win.prikormka.

rule win_prikormka_auto {

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

    


    strings:
        $sequence_0 = { 8d0446 50 e8???????? 83c40c 6a00 56 }
                                                                                    
        $sequence_1 = { 83c40c 6a00 56 ffd3 8b2d???????? 85c0 7405 }
                                                                                                
        $sequence_2 = { ffd3 85c0 7405 6a02 56 }
                                                                        
        $sequence_3 = { 85f6 7420 68???????? ffd7 }
                                                            
        $sequence_4 = { 740e 68???????? 50 ff15???????? ffd0 }
                                                                        
        $sequence_5 = { 8d1446 52 e8???????? 83c40c }
                                                            
        $sequence_6 = { 83c40c 68???????? ffd7 03c0 50 68???????? 56 }
                                                                                                
        $sequence_7 = { 6800020000 ff15???????? 68???????? ffd7 }
                                                            
        $sequence_8 = { 7408 41 42 3bce }
                                                            
        $sequence_9 = { 8d442404 50 ff15???????? 5e 85c0 }
                                                                        
        $sequence_10 = { 6a00 ff15???????? 85c0 7502 59 c3 50 }
                                                                                                
        $sequence_11 = { ff15???????? ffd0 c705????????01000000 c705????????01000000 }
                                                            
        $sequence_12 = { c3 57 6a00 6a00 6a00 6a02 }
                                                                                    
        $sequence_13 = { 5e 85c0 7422 68???????? 50 }
                                                                        
        $sequence_14 = { 83ec08 68???????? ff15???????? 0fb7c0 6683f805 7d09 b801000000 }
                                                                                                
        $sequence_15 = { 5e 85c0 7414 c705????????01000000 }
                                                            
        $sequence_16 = { ff15???????? 3db7000000 750e 56 ff15???????? 33c0 5e }
                                                                                                
        $sequence_17 = { 33f6 e8???????? e8???????? e8???????? e8???????? e8???????? e8???????? }
                                                                                                
        $sequence_18 = { 668b08 83c002 6685c9 75f5 8b0d???????? 2bc2 8b15???????? }
                                                                                                
        $sequence_19 = { ff15???????? 8bf0 ff15???????? 3db7000000 751f 56 ff15???????? }
                                                                                                
        $sequence_20 = { 6685d2 75f5 2bce 8d1400 52 }
                                                                        
        $sequence_21 = { e8???????? 8b35???????? 83c40c 68???????? ffd6 03c0 }
                                                                                    
        $sequence_22 = { 83c002 6685c9 75f5 2bc6 8d0c12 51 d1f8 }
                                                                                                
        $sequence_23 = { d1f8 8d7102 8da42400000000 668b11 83c102 }
                                                                        
        $sequence_24 = { 75f5 8d0c12 2bc6 51 d1f8 8d544408 }
                                                                                    
        $sequence_25 = { 50 e8???????? b8???????? 83c40c 8d5002 }
                                                                        
        $sequence_26 = { 83c420 8d5002 668b08 83c002 }
                                                            
        $sequence_27 = { 85c0 7409 6a02 68???????? }
                                                            
        $sequence_28 = { 6685c9 75f5 2bc7 8d0c12 }
                                                            
        $sequence_29 = { 6685c9 75f5 2bc2 d1f8 8bd0 b8???????? }
                                                                                    
        $sequence_30 = { b9???????? d1f8 8d7102 668b11 83c102 6685d2 }
                                                                                    
        $sequence_31 = { 68???????? 57 ffd6 03c7 50 e8???????? 83c40c }
                                                                                                
        $sequence_32 = { 83c40c eb0d 6a00 6800020000 ff15???????? }
                                                                        
        $sequence_33 = { 6685c9 75f5 2bc2 b9???????? d1f8 8d7102 }
                                                                                    
        $sequence_34 = { 8bd0 b8???????? 8d7002 8da42400000000 668b08 83c002 }
                                                                                    
        $sequence_35 = { 68???????? 33ff 57 57 ff15???????? 8bf0 }
                                                                                    
        $sequence_36 = { 83c102 6685d2 75f5 8d1400 }
                                                            
        $sequence_37 = { 83c40c 68???????? ffd6 50 68???????? 57 ffd6 }
                                                                                                
        $sequence_38 = { 75f5 2bc6 03d2 52 }
                                                            
        $sequence_39 = { 50 e8???????? 8b1d???????? 83c40c 6a00 68???????? }
                                                                                    
        $sequence_40 = { 40 ebdd 55 8dac2478ffffff 81ec08010000 a1???????? 33c5 }
                                                                                                
        $sequence_41 = { 6a5c 99 5b f7fb 3bc1 7312 }
                                                                                    
        $sequence_42 = { 85c0 7506 2105???????? 8b8d98010000 5f }
                                                                        
        $sequence_43 = { 891f 59 395dec 7409 ff75ec }
                                                                        
        $sequence_44 = { 8bf8 e8???????? 85ff 7c67 ff75e8 }
                                                                        
    condition:
        7 of them and filesize < 401408
}

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

c7917e91-3bbf-4c5c-9b82-04b6880adc98

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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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