win_kimjongrat_auto

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

Detects win.kimjongrat.

rule win_kimjongrat_auto {

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

    


    strings:
        $sequence_0 = { e8???????? 8bf0 53 8975f0 ff15???????? 83c408 894508 }
                                                                                                
        $sequence_1 = { ff750c 51 e8???????? 83c418 5f 5e 5b }
                                                                                                
        $sequence_2 = { e9???????? c6840de0f8ffff6e e9???????? c6840de0f8ffff2d e9???????? c6840de0f8ffff7d e9???????? }
                                                                                                
        $sequence_3 = { e8???????? 83c410 8bc8 eb33 8bc2 99 52 }
                                                                                                
        $sequence_4 = { e9???????? c6840d2ccbffff71 e9???????? c6840d2ccbffff66 e9???????? c6840d2ccbffff68 e9???????? }
                                                                                                
        $sequence_5 = { e8???????? 8b55d4 8b4de4 83c408 85c0 750b 8b45cc }
                                                                                                
        $sequence_6 = { 57 8b3e 33db 897dfc 85c0 0f84e9000000 8d642400 }
                                                                                                
        $sequence_7 = { e8???????? 8bf0 83c408 8975e4 85f6 0f85663b0000 8b430c }
                                                                                                
        $sequence_8 = { f7401800001000 0f8422010000 397a4c 0f8519010000 8b4228 a801 0f850e010000 }
                                                                                                
        $sequence_9 = { ff73e4 50 8d43c4 50 8d4384 50 57 }
                                                                                                
    condition:
        7 of them and filesize < 1572864
}

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

e0f5e49e-9434-46d0-9b03-9000eca75975

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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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