win_nightledger_auto

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

Detects win.nightledger.

rule win_nightledger_auto {

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

    


    strings:
        $sequence_0 = { e9???????? 488d0dbf871000 e8???????? 833d????????ff 0f85b4fbffff 0f57c0 0f1105???????? }
                                                                                                
        $sequence_1 = { b937bbc175 8b542404 81fa6ac2232b 740a 81fa37bbc175 75ec eb26 }
                                                                                                
        $sequence_2 = { ff0d???????? 488b4db0 8b05???????? a801 75e2 4885c9 7419 }
                                                                                                
        $sequence_3 = { 896c2404 4c8b742418 48895c2440 4c89742438 e9???????? 488b5c2410 c60300 }
                                                                                                
        $sequence_4 = { e9???????? 4181fede860ba5 0f8542fcffff 4883c460 5b 5d 5f }
                                                                                                
        $sequence_5 = { e9???????? ff0d???????? c74424409dd7948d e9???????? 3d7b20bc69 0f856df5ffff 4889f0 }
                                                                                                
        $sequence_6 = { ff05???????? 488b3d???????? 8b05???????? a801 7404 ffd7 ebf2 }
                                                                                                
        $sequence_7 = { e9???????? c685b204000001 e8???????? 488d0db3360c00 e8???????? 833d????????ff 0f85e9e9ffff }
                                                                                                
        $sequence_8 = { e9???????? 3d5fa2f037 0f8574feffff 8b742438 488b8c24d8130000 4831e1 e8???????? }
                                                                                                
        $sequence_9 = { eb80 3d8b968b91 0f841f010000 3da194bb97 0f8450010000 3d5c6d0abd 0f855fffffff }
                                                                                                
    condition:
        7 of them and filesize < 2284544
}

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

c123e930-5299-45b9-a6a8-c530c44e7bbf

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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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