win_badhatch_auto

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

Detects win.badhatch.

rule win_badhatch_auto {

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

    


    strings:
        $sequence_0 = { 8b7dc4 8d8568dfffff 2bf8 8d443f02 50 6a00 ff35???????? }
                                                                                                
        $sequence_1 = { 53 e8???????? 33c9 83c40c 8bf0 }
                                                                        
        $sequence_2 = { e8???????? 83c41c 8bf8 8b75fc e8???????? 8bc7 5f }
                                                                                                
        $sequence_3 = { ff35???????? c745fc08000000 c745e401000000 c745e810270000 c745ece8030000 c745f4e0930400 8975f8 }
                                                                                                
        $sequence_4 = { 7716 720a 817c242000f00700 730a 8b442420 894c243c }
                                                                                    
        $sequence_5 = { c7873001000001000000 6a00 6a02 68???????? ff75fc ffd6 5f }
                                                                                                
        $sequence_6 = { eb05 ff7240 33c0 e8???????? 8bf0 59 85f6 }
                                                                                                
        $sequence_7 = { 8d856bdfffff e8???????? 59 8945e4 85c0 740b 50 }
                                                                                                
        $sequence_8 = { ff15???????? 89442410 3bc3 750d c744240808000000 e9???????? 53 }
                                                                                                
        $sequence_9 = { 68c0270900 ffb744010000 ff15???????? 8364240c00 6a00 ffb744010000 ff15???????? }
                                                                                                
    condition:
        7 of them and filesize < 156672
}

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

b5668da0-5d16-42fd-9a1e-3f7e5ecd8bc3

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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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