win_zeus_action_auto

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

Detects win.zeus_action.

rule win_zeus_action_auto {

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

    


    strings:
        $sequence_0 = { bf???????? 0fbe450b 50 68???????? ff15???????? 59 }
                                                                                    
        $sequence_1 = { 7403 895df0 ff75f8 ff15???????? 8d3438 8d443604 e8???????? }
                                                                                                
        $sequence_2 = { 8bf0 83feff 0f841d020000 6a04 8d45ec 50 6a01 }
                                                                                                
        $sequence_3 = { 8d70ff 2bf2 8975f0 85f6 7e67 83650800 8bc7 }
                                                                                                
        $sequence_4 = { 83e107 0fb60410 d3e0 84c0 7930 0fb74618 8b4de0 }
                                                                                                
        $sequence_5 = { d3e0 8945c4 8b45d8 85c0 0f8eab020000 8b55ec 0faf55f0 }
                                                                                                
        $sequence_6 = { 8945f4 53 6a06 6a01 57 ff15???????? 8bd8 }
                                                                                                
        $sequence_7 = { 56 e8???????? 83c40c 85c0 78e2 85ff 7411 }
                                                                                                
        $sequence_8 = { 50 ffd7 8975f8 3975fc 0f855b010000 bf04010000 57 }
                                                                                                
        $sequence_9 = { 8b55c8 8bf1 8975c0 3b4dd0 0f8db1020000 8b4d14 894dd4 }
                                                                                                
    condition:
        7 of them and filesize < 827392
}

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

fa752d4c-cd49-49c9-86f5-4f27746aab00

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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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