win_screencap_auto

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

Detects win.screencap.

rule win_screencap_auto {

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

    


    strings:
        $sequence_0 = { 4c8d0d7d98ffff 41f640387f 7528 3bc6 741e 83f8fe 7419 }
                                                                                                
        $sequence_1 = { 7533 50 e8???????? 50 6864334700 e8???????? }
                                                                                    
        $sequence_2 = { 0f85d2000000 81e964334700 8d7c247c d1f9 8d1449 }
                                                                        
        $sequence_3 = { e9???????? 488d1594c60000 e9???????? 488d1554ca0000 e9???????? 498bd7 e9???????? }
                                                                                                
        $sequence_4 = { b424 0c10 0000 8d442404 }
                                                            
        $sequence_5 = { 488d45f0 4533c9 4889442440 488d05b05d0100 4533c0 4889442438 48895c2430 }
                                                                                                
        $sequence_6 = { 85c9 0f847b000000 488d05c3430100 c70001000000 4883c008 }
                                                                        
        $sequence_7 = { 0f848e000000 4c8d4c2450 4c8d442448 488d542440 488bc8 }
                                                                        
        $sequence_8 = { e8???????? 85c0 790f 488b0d???????? 33d2 ff15???????? }
                                                                                    
        $sequence_9 = { 4889442468 4889442458 488d4580 4d8bf9 458be8 4889442450 448bf2 }
                                                                                                
    condition:
        7 of them and filesize < 1391616
}

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

ca66eefb-f594-436a-bc82-58bd81518a33

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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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