win_xpertrat_auto

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

Detects win.xpertrat.

rule win_xpertrat_auto {

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

    


    strings:
        $sequence_0 = { 007168 ff0468 ff0a 250004003c }
                                                            
        $sequence_1 = { 00a1cc004400 0bc0 7402 ffe0 68???????? }
                                                                        
        $sequence_2 = { 0d80000700 0474 ff0478 ff05???????? }
                                                            
        $sequence_3 = { 0000 ae 045c ff4d40 ff08 }
                                                                        
        $sequence_4 = { 70ff 0808 008a3800cc1c 5e }
                                                            
        $sequence_5 = { 5e 006c70ff 0808 008f38001b26 }
                                                            
        $sequence_6 = { ff0478 ff05???????? 000d???????? 0878ff }
                                                            
        $sequence_7 = { 0808 008f38001b26 001b 0d002a2364 ff08 }
                                                                        
        $sequence_8 = { ff15???????? 83c40c 0fbf8d60ffffff 85c9 0f84c8010000 }
                                                                        
        $sequence_9 = { ff15???????? 83c40c 0fbf851cffffff 85c0 }
                                                            
        $sequence_10 = { ff15???????? 83c378 8b4508 83c07c }
                                                            
        $sequence_11 = { ff15???????? 83c40c 0fbf85c4feffff 85c0 }
                                                            
        $sequence_12 = { ff15???????? 83c404 b903000000 8bdc }
                                                            
        $sequence_13 = { ff15???????? 83c40c 0fbf8558ffffff 85c0 }
                                                            
        $sequence_14 = { ff15???????? 83c40c 0fbf4d9c 85c9 }
                                                            
        $sequence_15 = { ff15???????? 83c40c 0fbf85d8feffff 85c0 }
                                                            
    condition:
        7 of them and filesize < 8560640
}

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

b7de6277-f76c-4f5e-b234-582bb5ca167b

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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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