win_arkei_stealer_auto

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

Detects win.arkei_stealer.

rule win_arkei_stealer_auto {

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

    


    strings:
        $sequence_0 = { 8b4e20 8b16 8d448a0e 6a00 8d4de4 51 6a0e }
                                                                                                
        $sequence_1 = { 8bf0 c70628000000 8b4dc8 894e04 8b55cc 895608 }
                                                                                    
        $sequence_2 = { 6800000080 56 894590 ff15???????? 8bf8 }
                                                                        
        $sequence_3 = { 51 6a00 ffd6 8b55e8 52 }
                                                                        
        $sequence_4 = { ff15???????? 8bf8 83ffff 0f849ffeffff ba424d0000 }
                                                                        
        $sequence_5 = { ffd3 6a0a 57 8bf0 ffd3 8bd8 }
                                                                                    
        $sequence_6 = { 895608 668b45d4 6689460c 668b4dd6 66894e0e }
                                                                        
        $sequence_7 = { 5d c3 50 8b45e8 50 ff15???????? }
                                                                                    
        $sequence_8 = { 6a0a 57 8bf0 ffd3 8bd8 53 56 }
                                                                                                
        $sequence_9 = { 770a bb10000000 e9???????? 83f818 0f8783010000 }
                                                                        
    condition:
        7 of them and filesize < 1744896
}

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

4e836adb-5d7b-42e4-9768-96bea07d7027

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