win_reedbed_auto

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

Detects win.reedbed.

rule win_reedbed_auto {

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

    


    strings:
        $sequence_0 = { e8???????? 33c9 e8???????? 488b0d???????? 488981c2140000 }
                                                                        
        $sequence_1 = { 33c9 ff15???????? 85c0 751e }
                                                            
        $sequence_2 = { 453b03 7519 41833b40 7313 }
                                                            
        $sequence_3 = { eb55 8b9d90020000 4c8d8d90020000 895e26 4533c0 66897e2a }
                                                                                    
        $sequence_4 = { 4885c0 75e9 8d4f01 4803c9 e8???????? 488bf8 }
                                                                                    
        $sequence_5 = { 40f6c520 7412 418a01 4181482104020000 }
                                                            
        $sequence_6 = { 4885c0 7425 c60000 488d742440 eb13 }
                                                                        
        $sequence_7 = { 4181ba9814000000000200 7347 4533c0 443b06 7316 418b490e }
                                                                                    
        $sequence_8 = { 89442450 488b442428 0fb700 488d0d10da0500 }
                                                            
        $sequence_9 = { 8944244c 837c244c0f 0f875e010000 8b44244c 488d0d1ba4eaff }
                                                                        
        $sequence_10 = { 8944244c 837c244c00 753a 488d05dc8e0400 }
                                                            
        $sequence_11 = { 89442454 837c245400 753a 488d05341c0500 }
                                                            
        $sequence_12 = { 89442450 817c245000ca9a3b 723a 488d0514070600 }
                                                            
        $sequence_13 = { 89442450 837c245000 753a 488d053d0e0500 }
                                                            
    condition:
        7 of them and filesize < 3760128
}

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

27cbb5b4-7146-4a52-9970-397412c5e930

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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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