win_luca_stealer_auto

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

Detects win.luca_stealer.

rule win_luca_stealer_auto {

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

    


    strings:
        $sequence_0 = { eb12 4898 48c1e005 4a8b0410 48894110 44894908 4885c0 }
                                                                                                
        $sequence_1 = { eb4c 4c8d059a962a00 eb40 4c8d05a9962a00 eb3a 4c8d0578972a00 eb8a }
                                                                                                
        $sequence_2 = { eb03 49891a 41891b 488b9c2488000000 418bc7 4883c440 415f }
                                                                                                
        $sequence_3 = { ba09000000 488d0d3a473b00 e9???????? ba07000000 488d0dba463b00 e9???????? ba05000000 }
                                                                                                
        $sequence_4 = { e9???????? b8a9000000 3bd8 0f8759040000 0f841c040000 b8a4000000 3bd8 }
                                                                                                
        $sequence_5 = { e9???????? c6430109 b001 8803 4889d1 4881c488010000 5b }
                                                                                                
        $sequence_6 = { ebd0 488d542430 44884a08 44884209 890a 894204 488d4c2427 }
                                                                                                
        $sequence_7 = { ebc2 488d05dcc02500 48894567 ba00001000 488d4def e8???????? 488d8bf80c0000 }
                                                                                                
        $sequence_8 = { e8???????? 4084ed 740e 488b8be00a0000 e8???????? eb05 e8???????? }
                                                                                                
        $sequence_9 = { e8???????? 4585ed 741f 448b4f20 4585c9 7507 448b8e98000000 }
                                                                                                
    condition:
        7 of them and filesize < 9285632
}

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

372f2ffb-2a98-43d3-9707-befd1e1dd980

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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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