win_purplewave_auto

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

Detects win.purplewave.

rule win_purplewave_auto {

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

    


    strings:
        $sequence_0 = { 8bf1 8b7d08 8bc7 2b06 99 6a28 59 }
                                                                                                
        $sequence_1 = { 8b45a0 50 8b08 ff5108 ff15???????? 68???????? }
                                                                                    
        $sequence_2 = { e8???????? ff7508 8d4dd0 c645fc01 e8???????? }
                                                                        
        $sequence_3 = { e8???????? c20800 55 8bec 81ec18020000 a1???????? 33c5 }
                                                                                                
        $sequence_4 = { e8???????? 895e3c 8bc6 895e40 895e44 895e48 895e4c }
                                                                                                
        $sequence_5 = { ff5108 8b4d94 85c9 0f8506feffff 8d45a4 8bcf 50 }
                                                                                                
        $sequence_6 = { 8bc1 eb03 83c8ff 8b4dfc 5f 5e 33cd }
                                                                                                
        $sequence_7 = { 85c0 7528 8bce e8???????? 8b5640 8b7644 8b4df4 }
                                                                                                
        $sequence_8 = { 59 c645fc44 0bdf 83781410 899d3cffffff 7202 8b00 }
                                                                                                
        $sequence_9 = { 8bf7 6a06 59 8bfa f3a5 83601000 8bfa }
                                                                                                
    condition:
        7 of them and filesize < 1400832
}

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

d4256336-9d3e-4562-af19-de534a3e994e

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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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