win_blacklotus_auto

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

Detects win.blacklotus.

rule win_blacklotus_auto {

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

    


    strings:
        $sequence_0 = { 488bd3 408acf e8???????? 488bcb e8???????? 8a4b0d 4080c7ff }
                                                                                                
        $sequence_1 = { 4883ec20 488bd9 488bfa 488b4a58 e8???????? }
                                                                        
        $sequence_2 = { 488b4940 e8???????? 488905???????? 4885c0 7425 8d4f1f ff5618 }
                                                                                                
        $sequence_3 = { c7442434f26b6fc5 458bc3 c74424383001672b c744243cfed7ab76 }
                                                            
        $sequence_4 = { 6683ea60 8d41ff 8bfe 4103c1 6689544508 }
                                                                        
        $sequence_5 = { 488d15741d0000 448bc6 488bcb e8???????? 488bf8 4885c0 }
                                                                                    
        $sequence_6 = { 410fb7c1 413bc2 72d9 66423974c210 }
                                                            
        $sequence_7 = { c745a4929d38f5 c745a8bcb6da21 c745ac10fff3d2 c745b0cd0c13ec }
                                                            
        $sequence_8 = { 4885c0 0f883a010000 8d571f 448d4701 488d0dd21f0000 e8???????? 488b4c2478 }
                                                                                                
        $sequence_9 = { 48897010 48897818 4c897020 55 488d68c8 4881ec30010000 4c8bd1 }
                                                                                                
    condition:
        7 of them and filesize < 181248
}

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

586c6af3-46dc-4fc7-a4ef-7889aec97dcd

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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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