win_kardonloader_auto

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

Detects win.kardonloader.

rule win_kardonloader_auto {

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

    


    strings:
        $sequence_0 = { 53 e8???????? 59 5b 8b7710 8d45fc }
                                                                                    
        $sequence_1 = { be???????? 50 33ff 56 897dfc e8???????? }
                                                                                    
        $sequence_2 = { 7e96 8b45f8 83f801 7541 0fb6441f01 8a9018314000 }
                                                                                    
        $sequence_3 = { 85c0 7409 8d85787cffff 894710 8d45f8 }
                                                                        
        $sequence_4 = { 0f8565010000 e8???????? 84c0 0f8558010000 e8???????? 84c0 0f854b010000 }
                                                                                                
        $sequence_5 = { f7f9 8b4d10 8901 40 50 }
                                                                        
        $sequence_6 = { 8d4598 50 e8???????? 59 59 85c0 }
                                                                                    
        $sequence_7 = { 6804010000 8d8578feffff 33f6 50 56 ff15???????? 8d8578feffff }
                                                                                                
        $sequence_8 = { 7e1e 46 803e20 7ffa eb16 3c22 7411 }
                                                                                                
        $sequence_9 = { 33f6 83f902 7d0c 8b4510 8930 33c0 }
                                                                                    
    condition:
        7 of them and filesize < 57344
}

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

7cf2de03-f5de-4313-aad3-d422ce5152d6

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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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