win_hazy_load_auto

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

Detects win.hazy_load.

rule win_hazy_load_auto {

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

    


    strings:
        $sequence_0 = { 33c0 f04d0fb1bcf130100200 488bd8 740e }
                                                            
        $sequence_1 = { 488945f0 488d1594c40000 b805000000 894520 894528 }
                                                                        
        $sequence_2 = { f00fc103 83f801 7516 488d05b5330100 488b4c2430 483bc8 7405 }
                                                                                                
        $sequence_3 = { 488b442448 4883f8ff 74c8 488bd3 4c8d05ceed0000 83e23f }
                                                                                    
        $sequence_4 = { 488d0d12c9ffff 4933f8 4a87bcf150100200 33c0 488b5c2450 488b6c2458 488b742460 }
                                                                                                
        $sequence_5 = { 8d41ff 8b8482f89e0100 85c0 0f8489000000 }
                                                            
        $sequence_6 = { 488d0d5beffeff 48c1e602 0fb784b9609e0100 488d9150950100 }
                                                            
        $sequence_7 = { 448bc7 4863c3 488d5504 442bc3 }
                                                            
        $sequence_8 = { 442bc3 4803d0 4533c9 488bce ff15???????? 85c0 0f8eacfeffff }
                                                                                                
        $sequence_9 = { eb75 4c8bf3 488d3513be0100 488d2df4bd0100 }
                                                            
    condition:
        7 of them and filesize < 315392
}

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

33d1bfd6-b991-4721-b42a-1cbad795b20f

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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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