win_minibus_auto

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

Detects win.minibus.

rule win_minibus_auto {

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

    


    strings:
        $sequence_0 = { 8906 c74604???????? 85c0 0f84d8feffff 8b0d???????? 3bc9 0f8579000000 }
                                                                                                
        $sequence_1 = { 8b4614 3bc8 772e 8bde 83f808 7202 8b1e }
                                                                                                
        $sequence_2 = { 0f82ce000000 837de408 8bd6 7202 }
                                                            
        $sequence_3 = { 83c302 83ea01 75e5 8b45f0 }
                                                            
        $sequence_4 = { 894610 8bc6 8975b4 7205 8b06 8945b4 57 }
                                                                                                
        $sequence_5 = { 722e 8b55d8 41 8bc2 }
                                                            
        $sequence_6 = { 897de4 895de8 85f6 7421 83c8ff f00fc14604 7517 }
                                                                                                
        $sequence_7 = { 8d45d8 50 52 e8???????? 894608 85c0 7543 }
                                                                                                
        $sequence_8 = { c70700000000 c7471000000000 c7471400000000 83781410 }
                                                            
        $sequence_9 = { 8b06 8945b4 57 52 03c1 50 e8???????? }
                                                                                                
    condition:
        7 of them and filesize < 324608
}

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

1dbe4361-8330-44f1-adde-acb14b16b57e

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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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