win_venomloader_auto

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

Detects win.venomloader.

rule win_venomloader_auto {

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

    


    strings:
        $sequence_0 = { ff5048 488b4b08 488d5101 4839d5 7e0b 83f8ff 0f852effffff }
                                                                                                
        $sequence_1 = { e8???????? 4c89b42438020000 4989c2 488d8424c0000000 c78424e800000000000000 4889442458 488d058c87fcff }
                                                                                                
        $sequence_2 = { 4889d9 ff5048 89c2 6683f8ff 0f8507ffffff 0f1f00 b8ffffffff }
                                                                                                
        $sequence_3 = { 4c89e2 4889e9 e8???????? 488d05889b0200 488d5370 488b4e68 48894318 }
                                                                                                
        $sequence_4 = { 53 4883ec20 488d053c7a0100 488d155d7a0100 66480f6ec2 488941f0 4883c050 }
                                                                                                
        $sequence_5 = { 4585d2 0f85bb020000 83430801 488d053b350b00 488906 e9???????? f083430801 }
                                                                                                
        $sequence_6 = { 6690 488b16 4889f9 e8???????? 85c0 7421 }
                                                                                    
        $sequence_7 = { 4885c0 0f84a2000000 488d1584300100 48c7401800000000 48895010 c6402000 c640482e }
                                                                                                
        $sequence_8 = { 4c892b 488983d0000000 0f1183b8010000 0f1183c8010000 e8???????? 488d0541850400 488d7b08 }
                                                                                                
        $sequence_9 = { 4d89e8 4889da 4889c1 4989c4 e8???????? 488d15fb030100 b904000000 }
                                                                                                
    condition:
        7 of them and filesize < 2592768
}

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

74323c04-f408-4c12-bffd-410252b5e6d2

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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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