win_fonix_auto

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

Detects win.fonix.

rule win_fonix_auto {

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

    


    strings:
        $sequence_0 = { 42 6bd206 8b75c4 8a84c1f0bb4c00 880416 8b45dc c1e808 }
                                                                                                
        $sequence_1 = { 7416 e8???????? 8d8d98faffff c645fc06 e8???????? eb22 }
                                                                                    
        $sequence_2 = { 68???????? 8d8dc0fcffff c645fc18 e8???????? 68???????? 8d8dd8fcffff c645fc19 }
                                                                                                
        $sequence_3 = { c5fe7f85a0e9ffff c5fe6f85a0e9ffff c5fe7f85c0feffff c5fe6f8540feffff c5fdfe8560fdffff c5fe7f8580e9ffff }
                                                                                    
        $sequence_4 = { 85f6 7408 8b06 8bce 6a01 ff10 8d8d5cffffff }
                                                                                                
        $sequence_5 = { c700???????? c74708???????? c74720ac294b00 e8???????? c3 c701???????? }
                                                                                    
        $sequence_6 = { 8b55fc 8b4c8a08 c1e900 0fb6c9 0fb68950734900 3304cd03c44c00 8b4df8 }
                                                                                                
        $sequence_7 = { e8???????? 8d8df4fbffff 8bf0 e8???????? 83feff 0f85f3010000 80bd4ffcffff00 }
                                                                                                
        $sequence_8 = { eb02 32c0 e8???????? c21000 68???????? }
                                                                        
        $sequence_9 = { 8d4dc4 e8???????? 56 e8???????? 59 57 e8???????? }
                                                                                                
    condition:
        7 of them and filesize < 2226176
}

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

085d09f3-e046-4880-b807-a87cd27624ef

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion