win_miuref_auto

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

Detects win.miuref.

rule win_miuref_auto {

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

    


    strings:
        $sequence_0 = { 7555 8b4614 8d0c38 3b4e18 7613 68fc010000 68???????? }
                                                                                                
        $sequence_1 = { e8???????? 83c424 837dfc00 894508 750b 6a00 e8???????? }
                                                                                                
        $sequence_2 = { 56 6a02 ff75fc e8???????? 8945f4 8d45f4 }
                                                                                    
        $sequence_3 = { ff36 e8???????? 56 e8???????? 83c418 }
                                                                        
        $sequence_4 = { 7479 56 6a01 50 e8???????? 8bf8 83c40c }
                                                                                                
        $sequence_5 = { 0f85c5000000 51 6a0d 68???????? 53 e8???????? 8bf8 }
                                                                                                
        $sequence_6 = { 56 e8???????? 8bf8 8d456c 50 57 e8???????? }
                                                                                                
        $sequence_7 = { c7802002000080000000 a1???????? c780240200008189f9b9 a1???????? c78028020000e089f9b9 a1???????? c7802c02000030da1769 }
                                                                                                
        $sequence_8 = { 59 6a00 8bf0 8d45fc 50 57 ff36 }
                                                                                                
        $sequence_9 = { 8901 33c0 40 c3 55 8bec 51 }
                                                                                                
    condition:
        7 of them and filesize < 180224
}

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

5ad8e737-a7a6-4be9-96aa-dfb9044cc55c

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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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