win_bubblewrap_auto

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

Detects win.bubblewrap.

rule win_bubblewrap_auto {

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

    


    strings:
        $sequence_0 = { 51 e8???????? 83c42c 8d542464 52 ff15???????? }
                                                                                    
        $sequence_1 = { 6a00 e8???????? 83c418 68???????? ff15???????? b907000000 }
                                                                                    
        $sequence_2 = { 8915???????? 8b15???????? a3???????? 66a1???????? 880d???????? b910000000 }
                                                                                    
        $sequence_3 = { a4 8a841cb0000000 84c0 740d }
                                                            
        $sequence_4 = { 880c2b 8bc8 8bd1 8d7c2b01 c1e902 }
                                                                        
        $sequence_5 = { e8???????? 83c408 be???????? b8???????? 8a10 }
                                                                        
        $sequence_6 = { 6800b00400 51 52 ff15???????? 85c0 752f }
                                                                                    
        $sequence_7 = { 8d7c240c 2bf1 8d44241c 4e 50 8bce }
                                                                                    
        $sequence_8 = { 52 894c2438 888c24b4010000 b940000000 895c246c }
                                                                        
        $sequence_9 = { 83c9ff 8dbc2470030000 f2ae f7d1 }
                                                            
    condition:
        7 of them and filesize < 57136
}

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

2a948dc4-1e99-4cbe-b077-69df9f54e4ab

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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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