win_firechili_auto

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

Detects win.firechili.

rule win_firechili_auto {

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

    


    strings:
        $sequence_0 = { 0f8824020000 488b5a70 4885db 0f8410020000 4084f6 7405 8b4b18 }
                                                                                                
        $sequence_1 = { 4533f6 4c89742438 4c89742430 f6c204 7407 33c0 }
                                                                                    
        $sequence_2 = { 85c0 782b 488b4c2468 4885c9 7421 488b4908 4885c9 }
                                                                                                
        $sequence_3 = { 0f57c0 4889bc2488000000 33ff c7450730000000 ba3f000f00 }
                                                                        
        $sequence_4 = { 440fb701 4533d2 488bda 488bf1 418bea 458bca 418bfa }
                                                                                                
        $sequence_5 = { 75dc eb05 4885d2 7511 }
                                                            
        $sequence_6 = { 418bc6 81c200040000 4a393400 740c ffc1 48ffc0 483bc2 }
                                                                                                
        $sequence_7 = { 4883ea01 75e1 eb05 4885d2 750a 4883e902 41b905000080 }
                                                                                                
        $sequence_8 = { 4c8d442440 c644242800 488bcb c744242000000000 418d51fe ff15???????? 85c0 }
                                                                                                
        $sequence_9 = { 83e801 7454 83e801 7419 83f801 0f85e1000000 }
                                                                                    
    condition:
        7 of them and filesize < 91136
}

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

20744e9f-fc2a-4d70-9088-4a5591efe5fa

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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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