win_sagerunex_auto

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

Detects win.sagerunex.

rule win_sagerunex_auto {

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

    


    strings:
        $sequence_0 = { 488d542430 e8???????? 8bd8 85f6 7e6a 488d0d1a500300 448bc6 }
                                                                                                
        $sequence_1 = { 4883e808 48ffcb 75f1 488bc1 4885c9 7418 48ffc9 }
                                                                                                
        $sequence_2 = { 49c1ea08 443378f4 48c1e910 440fb6c1 418bcb 478ba48650510400 48c1e908 }
                                                                                                
        $sequence_3 = { 4d03c6 e8???????? 0fb74b04 4803cb e8???????? 418d54240f 664103c4 }
                                                                                                
        $sequence_4 = { 498be8 488bfa bbec000000 488d4c2420 33d2 448bc3 418bf1 }
                                                                                                
        $sequence_5 = { 0fb77c246c 4103c5 418d5ffe 03f8 e8???????? 0fb774246c 03c3 }
                                                                                                
        $sequence_6 = { e8???????? 81be34c800004d9aaa00 0f84b0000000 488d0dda2c0400 ff15???????? 488d442430 }
                                                                                    
        $sequence_7 = { 4d2bf7 4c8b7c2470 4983c7f8 4f8d3cf7 49c707ffffffff e9???????? 4c8b642438 }
                                                                                                
        $sequence_8 = { 418bc1 41c1e903 c1c807 33c8 418d0412 448b542428 4433c9 }
                                                                                                
        $sequence_9 = { 0f8506010000 488bcb e8???????? 488d0d7e530300 41c78644c800000c000000 e8???????? 4533c0 }
                                                                                                
    condition:
        7 of them and filesize < 619520
}

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

a2fc53d8-e981-4fb1-9715-90512747cfdf

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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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