win_redyms_auto

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

Detects win.redyms.

rule win_redyms_auto {

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

    


    strings:
        $sequence_0 = { 7406 837e0c00 750b 5f b001 5e }
                                                                                    
        $sequence_1 = { 8855f9 2bf3 8a1c0e 32d8 80f3c0 8819 40 }
                                                                                                
        $sequence_2 = { 50 6a00 ffd7 50 ffd6 8b4318 85c0 }
                                                                                                
        $sequence_3 = { 8975e8 8945f0 ffd3 8945f4 3bc6 }
                                                                        
        $sequence_4 = { 8b1d???????? 85c0 751b 8b45c4 6a01 68???????? 6a01 }
                                                                                                
        $sequence_5 = { 56 6a00 ff15???????? 50 ff15???????? 807dff00 7510 }
                                                                                                
        $sequence_6 = { 50 6a01 6a00 8d4de8 51 52 ff15???????? }
                                                                                                
        $sequence_7 = { 8bf0 83c408 85f6 743c a1???????? }
                                                                        
        $sequence_8 = { ff15???????? 8b4d08 6a00 68???????? 68???????? 51 56 }
                                                                                                
        $sequence_9 = { 8bec 83ec18 53 56 57 8bd8 c645f400 }
                                                                                                
    condition:
        7 of them and filesize < 98304
}

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

9d7846b8-ac6f-4e41-9e64-6af9af3ec61b

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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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