win_hyperssl_auto

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

Detects win.hyperssl.

rule win_hyperssl_auto {

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

    


    strings:
        $sequence_0 = { 0108 894810 8b4830 3308 }
                                                            
        $sequence_1 = { 0105???????? 8d558c 89458c 894590 }
                                                            
        $sequence_2 = { 8b4028 03c1 7423 56 57 }
                                                                        
        $sequence_3 = { 7436 8b413c 03c1 742a 8b4028 }
                                                                        
        $sequence_4 = { 0105???????? 8d8d5cffffff 89855cffffff 898560ffffff }
                                                            
        $sequence_5 = { 0108 3310 c1c607 c1c210 }
                                                            
        $sequence_6 = { 0101 014514 2bf3 8b5d0c c7472400000000 }
                                                                        
        $sequence_7 = { ff15???????? 8bc8 85c9 7436 }
                                                            
        $sequence_8 = { 0108 8b4830 3308 56 }
                                                            
        $sequence_9 = { 33c9 50 66890c06 8985ecfdffff e8???????? 83c40c }
                                                                                    
        $sequence_10 = { 8a10 301406 40 4f 75f2 }
                                                                        
        $sequence_11 = { 8a10 301401 8a10 301406 }
                                                            
        $sequence_12 = { 33c0 40 5d c20c00 6a08 68???????? e8???????? }
                                                                                                
        $sequence_13 = { 75f2 5f 5e e9???????? c3 55 8bec }
                                                                                                
        $sequence_14 = { 2bc8 2bf0 5f 8a10 }
                                                            
        $sequence_15 = { 0108 3908 1bc9 f7d9 }
                                                            
        $sequence_16 = { 011d???????? 5f 8935???????? 5e }
                                                            
        $sequence_17 = { 017e08 8bc3 e8???????? c20400 }
                                                            
        $sequence_18 = { 01442428 8b442428 884500 45 }
                                                            
        $sequence_19 = { 017e0c 5f 8bc6 5e c20800 }
                                                                        
        $sequence_20 = { 017e0c 395e10 740f ff7610 }
                                                            
        $sequence_21 = { 017e08 50 e8???????? ff0d???????? }
                                                            
        $sequence_22 = { 016b08 897b04 5f 5e }
                                                            
        $sequence_23 = { 017e0c 8d4d08 e8???????? 5f }
                                                            
    condition:
        7 of them and filesize < 835584
}

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

8eb761ed-c5db-4f01-b964-32fc5c9483e0

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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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