win_hui_loader_auto

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

Detects win.hui_loader.

rule win_hui_loader_auto {

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

    


    strings:
        $sequence_0 = { 8bc8 83e01f c1f905 56 57 8b348d60e20010 }
                                                                                    
        $sequence_1 = { 83c028 83c12c 4a 75eb b902000000 8d742454 83f901 }
                                                                                                
        $sequence_2 = { 8db604b40010 6a00 50 ff36 e8???????? }
                                                                        
        $sequence_3 = { 75f8 42 83c628 83fa0a 7ce6 b931000000 33c0 }
                                                                                                
        $sequence_4 = { 68???????? ff15???????? 6a00 6a00 6a00 8bf0 6a04 }
                                                                                                
        $sequence_5 = { 80f95c 7408 8a48ff 48 3acb 75f3 }
                                                                                    
        $sequence_6 = { 56 ff15???????? 8bf8 85ff 7506 50 }
                                                                                    
        $sequence_7 = { 6880000000 6a03 53 6a02 6800000080 68???????? }
                                                                                    
        $sequence_8 = { ffd0 68e8030000 ffd6 8b0d???????? }
                                                            
        $sequence_9 = { 6a03 53 6a02 6800000080 68???????? ff15???????? }
                                                                                    
    condition:
        7 of them and filesize < 131072
}

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

4cdfb33e-c3f7-41d7-babc-ba8714606c87

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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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