win_whitebird_auto

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

Detects win.whitebird.

rule win_whitebird_auto {

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

    


    strings:
        $sequence_0 = { eb09 80f92f 0f95c1 80c13f }
                                                            
        $sequence_1 = { ff15???????? 4963fc 488bcb c744242801000000 }
                                                            
        $sequence_2 = { ff15???????? 488b1e 33ed 483bde }
                                                            
        $sequence_3 = { 488b4d18 480304d1 eb79 33c0 488dbc24a0000000 498bcf f2ae }
                                                                                                
        $sequence_4 = { 834dfcff 8bc8 a3???????? e8???????? bf???????? 57 ff15???????? }
                                                                                                
        $sequence_5 = { 44887803 894804 837e1c00 488bd8 7450 4983c8ff 33c0 }
                                                                                                
        $sequence_6 = { 418bd4 bf11000000 4c8d15fe7f0000 6bd211 8bc2 }
                                                                        
        $sequence_7 = { a1???????? 83c410 85c0 7405 8b4004 eb02 }
                                                                                    
        $sequence_8 = { eb3f 6a54 ebd2 83e864 742a 48 }
                                                                                    
        $sequence_9 = { 56 43 53 e8???????? 53 }
                                                                        
        $sequence_10 = { 4c8bcb 4889442430 488d442440 448d42d3 }
                                                            
        $sequence_11 = { 51 e8???????? 59 8985a8fdffff }
                                                            
        $sequence_12 = { 68???????? 57 ff15???????? 8bf0 59 33c0 59 }
                                                                                                
        $sequence_13 = { 899da0f5ffff c78594f5ffff64000000 e8???????? 53 6a01 8d85d7f5ffff 50 }
                                                                                                
        $sequence_14 = { ff15???????? 85c0 7f81 488bcb ff15???????? 488bce }
                                                                                    
    condition:
        7 of them and filesize < 139264
}

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

20ed4afb-ec6b-4ffe-b886-482d8ff2761d

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