win_bagle_auto

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

Detects win.bagle.

rule win_bagle_auto {

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

    


    strings:
        $sequence_0 = { e8???????? 6804010000 68???????? 6a00 e8???????? }
                                                                        
        $sequence_1 = { 5f 5e c9 c20c00 c1c206 }
                                                                        
        $sequence_2 = { 6a01 6a02 e8???????? 8bd8 ff7508 }
                                                                        
        $sequence_3 = { 6880000000 68???????? e8???????? 6a00 6a00 6a00 }
                                                                                    
        $sequence_4 = { fec0 75e2 c3 55 8bec }
                                                                        
        $sequence_5 = { 68???????? 68???????? e8???????? 6804010000 68???????? 6a00 }
                                                                                    
        $sequence_6 = { 33db 66b80d0a 66ab 83e903 79c6 }
                                                                        
        $sequence_7 = { e8???????? e2f9 59 43 83fb12 }
                                                                        
        $sequence_8 = { 59 43 83fb12 7508 33db 66b80d0a }
                                                                                    
        $sequence_9 = { e340 ac c1e010 83f901 740b ac 66c1e008 }
                                                                                                
    condition:
        7 of them and filesize < 245760
}

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

2c5b3a93-94c1-4869-9b89-3cc977ed3580

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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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