win_iispy_auto

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

Detects win.iispy.

rule win_iispy_auto {

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

    


    strings:
        $sequence_0 = { 3b4608 7472 8a10 80fa30 7c6b 80fa39 7f66 }
                                                                                                
        $sequence_1 = { c1c017 03c1 8bc8 894204 8b420c }
                                                                        
        $sequence_2 = { ff75c8 ff75c4 ff75c0 ff36 6a00 ff15???????? b901000000 }
                                                                                                
        $sequence_3 = { 8802 eb02 883a 3b7d0c 0f826affffff 8b16 5f }
                                                                                                
        $sequence_4 = { c20800 8b8c2424010000 33c0 5f 5e 33cc }
                                                                                    
        $sequence_5 = { c60165 5f 5e 8b4c241c 33cc e8???????? 8be5 }
                                                                                                
        $sequence_6 = { 7420 6bc618 57 8db818d10210 57 ff15???????? ff0d???????? }
                                                                                                
        $sequence_7 = { 833d????????00 0f845c140000 83ec08 0fae5c2404 8b442404 25807f0000 3d801f0000 }
                                                                                                
        $sequence_8 = { eb3f 0fb600 0fbe8850c70210 41 894dd0 3bcf 0f8fa8010000 }
                                                                                                
        $sequence_9 = { 3c5a 7712 0fbec1 0faee8 0fb688f8eb0110 83e10f eb02 }
                                                                                                
    condition:
        7 of them and filesize < 397312
}

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

2f183e8f-90fd-4d33-b757-e5dbb4daea28

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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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