win_stowaway_auto

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

Detects win.stowaway.

rule win_stowaway_auto {

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

    


    strings:
        $sequence_0 = { 76e8 77e8 78e8 79e8 }
                                                            
        $sequence_1 = { 8a7cbe46 a3???????? 4e fb }
                                                            
        $sequence_2 = { 4e fb b501 2a37 }
                                                            
        $sequence_3 = { 78e8 79e8 7ae8 ce }
                                                            
        $sequence_4 = { ce f67be8 7ce8 7de8 7ee8 }
                                                                        
        $sequence_5 = { 0f11c1 7875 52 43 6b8ad456ed7902 a2???????? 6b89130a83d644 }
                                                                                                
        $sequence_6 = { 7770 7771 7772 7773 }
                                                            
        $sequence_7 = { 8a5631 1f 52 2021 8406 37 }
                                                                                    
        $sequence_8 = { f60904 9c 26b696 7a19 }
                                                            
        $sequence_9 = { 8b5f04 8d843000a03b00 01f3 50 83c708 ff9628a03b00 95 }
                                                                                                
        $sequence_10 = { 7072 72c8 0dc7707171 27 }
                                                            
        $sequence_11 = { 2cc6 ec 6e e695 8e01 5d }
                                                                                    
        $sequence_12 = { 9c 5c 4d 79c7 4d e081 025c51c9 }
                                                                                                
        $sequence_13 = { 89f7 b99eb40000 8a07 47 2ce8 3c01 }
                                                                                    
        $sequence_14 = { b082 17 16 40 9d }
                                                                        
        $sequence_15 = { 776a 776d 776e 776f 7770 }
                                                                        
        $sequence_16 = { 68b890e66c 195039 d0f1 1e }
                                                            
        $sequence_17 = { 30c2 01420f 9f d8682a 1f d204c6 06 }
                                                                                                
        $sequence_18 = { 0535bc767f 111c0d16130d3c fc a4 0d00d7a01f 825b85a0 1e }
                                                                                                
    condition:
        7 of them and filesize < 8003584
}

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

6caccbdf-50be-4b8d-bc87-37aa0703cbfa

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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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