win_enfal_auto

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

Detects win.enfal.

rule win_enfal_auto {

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

    


    strings:
        $sequence_0 = { ff15???????? 68???????? 50 8945ec ffd6 68???????? 8903 }
                                                                                                
        $sequence_1 = { 51 8d8d68ffffff 51 8d8de8fcffff }
                                                            
        $sequence_2 = { ff7508 53 ff5620 85c0 7403 }
                                                                        
        $sequence_3 = { 53 56 8b750c 8d85f8fdffff }
                                                            
        $sequence_4 = { e8???????? 8b4b1c be???????? 8dbd9cfeffff }
                                                            
        $sequence_5 = { f3ab 66ab 8065ff00 6800040000 }
                                                            
        $sequence_6 = { 66a5 a4 be???????? 8dbd60ffffff }
                                                            
        $sequence_7 = { 8945f0 e8???????? 83f812 59 750e 807f0152 7528 }
                                                                                                
        $sequence_8 = { 743d eb20 57 e8???????? 83f807 59 }
                                                                                    
        $sequence_9 = { 50 ff75fc ff55d8 85c0 0f8486000000 8d85d4feffff 56 }
                                                                                                
    condition:
        7 of them and filesize < 65536
}

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

5e338c5b-ac89-4514-9469-f9bcae6c1651

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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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