win_goldenspy_auto

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

Detects win.goldenspy.

rule win_goldenspy_auto {

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

    


    strings:
        $sequence_0 = { c78584feffff0f000000 c68570feffff00 c645fc00 e8???????? 8bb5bcfdffff 46 89b5bcfdffff }
                                                                                                
        $sequence_1 = { 0f1f8000000000 8b0b 8bfe 8b4610 85c9 7508 8b36 }
                                                                                                
        $sequence_2 = { 3c23 0f849b000000 8845fc 90 84c0 0f848b000000 }
                                                                                    
        $sequence_3 = { 8d45b0 50 e8???????? 8b0e ff700c 8b4904 ff7008 }
                                                                                                
        $sequence_4 = { 68???????? e9???????? 8b4614 85c0 7445 803800 7440 }
                                                                                                
        $sequence_5 = { 85c0 7428 68e8030000 ffd7 68???????? 81c6e8030000 ffd3 }
                                                                                                
        $sequence_6 = { 0fb63485f7f94500 8bf9 8985a4f8ffff c1e702 57 8d0431 89858cfaffff }
                                                                                                
        $sequence_7 = { 6a02 53 899d88d7ffff ffd6 85c0 0f8466070000 }
                                                                                    
        $sequence_8 = { 6a00 ff15???????? 8d85f8feffff 50 56 68???????? }
                                                                                    
        $sequence_9 = { 0f8400030000 90 8d8d34feffff c745b800000000 c745bc0f000000 8d5101 c645a800 }
                                                                                                
    condition:
        7 of them and filesize < 1081344
}

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

fd0c9389-0ff9-4102-9c5b-0ec7e10e2def

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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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