win_shadowhammer_auto

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

Detects win.shadowhammer.

rule win_shadowhammer_auto {

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

    


    strings:
        $sequence_0 = { 56 57 33f6 bfa8a24000 833cf55490400001 751d 8d04f550904000 }
                                                                                                
        $sequence_1 = { 6a69 668945ae 58 6a49 59 6a44 }
                                                                                    
        $sequence_2 = { 897e70 c686c800000043 c6864b01000043 c7466818934000 6a0d }
                                                                        
        $sequence_3 = { 5f c3 56 8b35???????? 68287c4000 57 ffd6 }
                                                                                                
        $sequence_4 = { c3 55 8bec 81ec4c030000 c785e4fcffff00b006c7 c785e8fcffffdab6ace6 c785ecfcffffc25c3799 }
                                                                                                
        $sequence_5 = { 3d40984000 741b 3998b4000000 7513 50 e8???????? }
                                                                                    
        $sequence_6 = { ff45fc 8b45fc 3b45f4 7cb7 ebae 8b45f0 ebab }
                                                                                                
        $sequence_7 = { 897e14 897e70 c686c800000043 c6864b01000043 c7466818934000 }
                                                                        
        $sequence_8 = { 817de00c714000 7311 8b45e0 8b00 85c0 7402 ffd0 }
                                                                                                
        $sequence_9 = { 8b401c 8b08 3bc8 7439 }
                                                            
    condition:
        7 of them and filesize < 49152
}

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

a0c4c885-4452-40d6-953b-9e288110142d

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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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