win_cheesetray_auto

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

Detects win.cheesetray.

rule win_cheesetray_auto {

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

    


    strings:
        $sequence_0 = { 40 84c9 75f9 2bc2 8bf8 8d5f01 53 }
                                                                                                
        $sequence_1 = { 85c0 7442 6a0a 8d8500ffffff 6a00 50 e8???????? }
                                                                                                
        $sequence_2 = { 83c41c f7d8 1bc0 f7d8 8be5 }
                                                                        
        $sequence_3 = { 66833c4200 75f8 8d0c00 8b4508 52 }
                                                                        
        $sequence_4 = { 5f 5e 8bc3 5b 5d c20c00 8bc3 }
                                                                                                
        $sequence_5 = { 55 8bec 83ec10 33c0 c645f000 8945f1 8945f5 }
                                                                                                
        $sequence_6 = { 7408 8bc6 5e 5b 8be5 5d c3 }
                                                                                                
        $sequence_7 = { e8???????? 83c408 894608 85c0 7403 ff4604 5f }
                                                                                                
        $sequence_8 = { e8???????? 8b5508 6a02 52 68???????? ba1f000000 8d75c0 }
                                                                                                
        $sequence_9 = { 8b80008b4400 3bf0 7e44 83ee07 eb3f 2503000080 7905 }
                                                                                                
    condition:
        7 of them and filesize < 8626176
}

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

07fae7b0-8144-456b-a52c-733c86defc62

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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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