win_unidentified_042_auto

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

Detects win.unidentified_042.

rule win_unidentified_042_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2026-09-17"
        version = "1"
        description = "Detects win.unidentified_042."
        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.unidentified_042"
        malpedia_rule_date = "20260916"
        malpedia_hash = "53a643781c18e08f4a50949af60172d837a0b6f6"
        malpedia_version = "20260917"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    


    strings:
        $sequence_0 = { 8975a8 3355ac d1c2 8955ac c1c705 03fa 8b55ec }
                                                                                                
        $sequence_1 = { 75e7 57 8bde e8???????? 83c404 85c0 75d8 }
                                                                                                
        $sequence_2 = { 8bb578eaffff 8b9d7ceaffff 43 899d7ceaffff 3bde 0f8ce0fdffff e9???????? }
                                                                                                
        $sequence_3 = { 8be5 5d c3 0fb7852cf9ffff e8???????? 8b8d34f9ffff 8981ac000000 }
                                                                                                
        $sequence_4 = { f6865402000002 8b7dfc 7568 8b450c e9???????? b853ffffff }
                                                                                    
        $sequence_5 = { 8d4df8 d1c3 51 895df8 8955fc e8???????? 8d9680000000 }
                                                                                                
        $sequence_6 = { b908000000 f3a5 c6402b20 8b5308 6a20 81c294010000 52 }
                                                                                                
        $sequence_7 = { c3 0fb7887c010000 f7c100200000 0f8583fdffff 0fb79050020000 81c900200000 6689887c010000 }
                                                                                                
        $sequence_8 = { 57 ffd6 a3???????? 85c0 0f8489020000 8d95d7fcffff 52 }
                                                                                                
        $sequence_9 = { 8bce e8???????? 8b06 f7d8 1bc0 23c3 894608 }
                                                                                                
    condition:
        7 of them and filesize < 516096
}

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

1f7d8a85-ff2b-46dd-9c2c-26f042ab214e

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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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