win_gtpdoor_auto

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

Detects win.gtpdoor.

rule win_gtpdoor_auto {

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

    


    strings:
        $sequence_0 = { fc b932000000 b800000000 f3aa }
                                                            
        $sequence_1 = { 0fb600 31d0 8801 8045fb01 8345fc01 }
                                                                        
        $sequence_2 = { 4889c2 488d85c0f7ffff 4801d0 488945f0 c785b8f7ffff00000000 488b45f0 }
                                                                                    
        $sequence_3 = { e8???????? bfd0040000 e8???????? 89c2 }
                                                            
        $sequence_4 = { 8b45e0 0fb74002 668945e6 8b45e0 0fb710 8b45e0 66895002 }
                                                                                                
        $sequence_5 = { 4883c00c 8b00 8905???????? 488dbdd0f1ffff }
                                                            
        $sequence_6 = { 0fb645fb 3a45e4 7204 c645fb00 }
                                                            
        $sequence_7 = { 8d850afaffff 01d0 8b5514 89c7 89d6 }
                                                                        
        $sequence_8 = { 48c1ea10 480fb745f8 488d0402 488945f8 }
                                                            
        $sequence_9 = { 750f 837dec00 755a c745f001000000 eb51 }
                                                                        
        $sequence_10 = { 6689420a 488b45f0 0fb7400a 83c010 0fb7f8 e8???????? 89c2 }
                                                                                                
        $sequence_11 = { b800000000 fc 8b7dd4 f2ae 89c8 }
                                                                        
        $sequence_12 = { 8945e8 8b45e8 83c434 5f 5d c3 }
                                                                                    
        $sequence_13 = { e8???????? 66c78580feffff0200 8b4508 8b400c }
                                                            
    condition:
        7 of them and filesize < 4210688
}

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

072c530a-9dc5-4c48-b44f-46696e46db6e

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