win_ratankbapos_auto

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

Detects win.ratankbapos.

rule win_ratankbapos_auto {

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

    


    strings:
        $sequence_0 = { 751c c74314ffffffff 5f 5e 33c0 5b 8b4dfc }
                                                                                                
        $sequence_1 = { 8bc8 c1f905 83e01f c1e006 8b0c8de04d0110 }
                                                                        
        $sequence_2 = { 51 68ff1f0000 8d95fcdfffff 89430c 8b4304 }
                                                                        
        $sequence_3 = { 8d8df8dfffff 51 68ff1f0000 8d95fcdfffff 89430c }
                                                                        
        $sequence_4 = { e8???????? 8b4510 33c9 8a4801 8d14cdd8ea0010 }
                                                                        
        $sequence_5 = { 8945e0 33f6 8b0d???????? 3bf1 0f8d2e010000 8b1cf5504a0110 }
                                                                                    
        $sequence_6 = { 837d0cff 8b4508 56 57 8945b8 750f }
                                                                                    
        $sequence_7 = { 8bc2 c78574ffffff3c000000 89b578ffffff 89b57cffffff 897584 66894d8c }
                                                                                    
        $sequence_8 = { 6803010000 8d44242d 53 50 885c2434 e8???????? 6803010000 }
                                                                                                
        $sequence_9 = { e8???????? 8b5d0c 83c40c 6800100000 }
                                                            
    condition:
        7 of them and filesize < 327680
}

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

703e4afa-f4c3-4764-b39d-4f5b199bc2a0

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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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