win_misha_auto

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

Detects win.misha.

rule win_misha_auto {

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

    


    strings:
        $sequence_0 = { 834e1802 8b542410 8ac1 c0e806 88460d 8ac1 }
                                                                                    
        $sequence_1 = { ff7008 8b4510 ff30 8b450c 0590010000 50 e8???????? }
                                                                                                
        $sequence_2 = { 8d45e8 50 e8???????? 83c414 eb02 32c0 5e }
                                                                                                
        $sequence_3 = { c1ea08 0bc2 c3 0fb7c9 8bc1 25ff000000 c1e008 }
                                                                                                
        $sequence_4 = { 8945f8 e9???????? 6a00 ff75f0 ff75f4 ff15???????? c9 }
                                                                                                
        $sequence_5 = { ff06 8b06 8b4e10 c6040872 eb56 8b0e }
                                                                                    
        $sequence_6 = { 8945c0 eb0b 8b459c c1e004 8b4db4 8801 8b45c0 }
                                                                                                
        $sequence_7 = { e9???????? 6a00 ff730c e8???????? 59 59 0fb6c0 }
                                                                                                
        $sequence_8 = { 8bd8 c7450804000000 8bd3 6a08 c1ea18 8bc7 8d75fc }
                                                                                                
        $sequence_9 = { 8bc7 3bfe 7723 2b7d0c 33d2 395510 }
                                                                                    
    condition:
        7 of them and filesize < 710656
}

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

914c269d-6d10-4d72-b903-49b0453b13e1

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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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