win_crat_auto

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

Detects win.crat.

rule win_crat_auto {

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

    


    strings:
        $sequence_0 = { 7406 e8???????? 90 488b542420 }
                                                            
        $sequence_1 = { 7523 0fb7fa 8bcf e8???????? 4885c0 7427 448bc7 }
                                                                                                
        $sequence_2 = { e8???????? 488bc8 4885c0 7433 }
                                                            
        $sequence_3 = { e8???????? 488bd0 488d8d28010000 e8???????? 90 }
                                                                        
        $sequence_4 = { e8???????? 488bd0 488d4d90 e8???????? 90 488bd0 }
                                                                                    
        $sequence_5 = { e8???????? 488bd0 488d8da8010000 e8???????? 90 }
                                                                        
        $sequence_6 = { e8???????? 488bd0 488d8d78010000 e8???????? }
                                                            
        $sequence_7 = { 498bc4 48833d????????10 480f4305???????? 482bc8 }
                                                            
        $sequence_8 = { 33d2 c1e902 f7f1 eb02 }
                                                            
        $sequence_9 = { ffd0 85c0 750f ff15???????? 83f87a }
                                                                        
        $sequence_10 = { c745fcffffffff 8b750c 83c6f0 8d460c }
                                                            
        $sequence_11 = { 8b4dd4 41 e9???????? 8b45e4 }
                                                            
        $sequence_12 = { e8???????? ffd0 8bf0 eb02 }
                                                            
        $sequence_13 = { 8bec 8b4128 2b4124 56 8d7118 83f810 }
                                                                                    
        $sequence_14 = { e9???????? 8b5708 3bca 754e }
                                                            
        $sequence_15 = { 8b4dd4 41 837f1800 0f8517ffffff 294b0c }
                                                                        
        $sequence_16 = { 8d45f4 64a300000000 c745fc00000000 c745f000000000 8b7508 c70600000000 e8???????? }
                                                                                                
        $sequence_17 = { c745fcffffffff 8b5608 83ea10 8d420c }
                                                            
    condition:
        7 of them and filesize < 4161536
}

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

02d458a2-b1e0-4438-bcee-cf4f942e7480

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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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