win_uacme_auto

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

Detects win.uacme.

rule win_uacme_auto {

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

    


    strings:
        $sequence_0 = { 8d45e8 50 ff75fc ff15???????? 8b4df8 33d2 85c0 }
                                                                                                
        $sequence_1 = { 6a08 ff7018 ff15???????? 8bf0 85f6 0f84de000000 }
                                                                                    
        $sequence_2 = { 8d95f0fdffff e8???????? ff771c ff15???????? }
                                                            
        $sequence_3 = { 59 59 85f6 743f ba???????? }
                                                                        
        $sequence_4 = { ff9620060000 33c0 5e 8be5 5d c20400 55 }
                                                                                                
        $sequence_5 = { c745f425544d50 c745f8255c7233 58 8b3f }
                                                            
        $sequence_6 = { c3 55 8bec 81ec20040000 53 56 be0a020000 }
                                                                                                
        $sequence_7 = { ba???????? 8d8decfbffff e8???????? ba???????? e8???????? 8d85ecfbffff 50 }
                                                                                                
        $sequence_8 = { e8???????? ba???????? 8d8df0fbffff e8???????? 8d85f0fbffff 50 ff15???????? }
                                                                                                
        $sequence_9 = { ff7508 8bd3 8d8de0f7ffff e8???????? 59 85c0 741a }
                                                                                                
    condition:
        7 of them and filesize < 565248
}

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

da9d4dc5-9846-4c4c-a4c7-7739e3b213d2

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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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