win_rovnix_auto

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

Detects win.rovnix.

rule win_rovnix_auto {

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

    


    strings:
        $sequence_0 = { 8b15???????? 83e7f0 89542418 83c710 }
                                                            
        $sequence_1 = { 83c335 c1e902 ad 2bc3 ab }
                                                                        
        $sequence_2 = { 6a00 ffd2 89442408 8bcf }
                                                            
        $sequence_3 = { 2bc3 ab e2fa 61 }
                                                            
        $sequence_4 = { 837c242c00 7405 57 6a00 ffd2 }
                                                                        
        $sequence_5 = { 60 bf40090000 be???????? 8b15???????? 83e7f0 }
                                                                        
        $sequence_6 = { 897f04 893f 894e14 895e10 }
                                                            
        $sequence_7 = { 8d4e1c 8908 8b4508 c7461801000000 }
                                                            
        $sequence_8 = { 85c0 e8???????? 8be5 5d c3 }
                                                                        
        $sequence_9 = { 83f919 7703 83c220 85c0 7404 }
                                                                        
        $sequence_10 = { 894804 8b4608 8b4e0c 8901 894804 8b4718 85c0 }
                                                                                                
        $sequence_11 = { 8b4d0c 897604 8936 8d7e08 897f04 }
                                                                        
        $sequence_12 = { 8b4508 c7461801000000 8b4804 8906 894e04 8931 897004 }
                                                                                                
        $sequence_13 = { c745ec40020000 8975e8 8975f0 8975f4 ff15???????? 85c0 }
                                                                                    
        $sequence_14 = { 8b00 3bc1 75f3 395e14 }
                                                            
        $sequence_15 = { 8b5e14 8b7e10 eb06 8b5d0c 8b7d08 8bcf }
                                                                                    
        $sequence_16 = { 23db 81e1ff000000 23c9 83440c0404 }
                                                            
        $sequence_17 = { 5d c3 85c0 e8???????? }
                                                            
        $sequence_18 = { 5d c3 85c9 e8???????? }
                                                            
        $sequence_19 = { 55 8bec 85db 85c9 }
                                                            
        $sequence_20 = { 16 85c9 23d2 59 }
                                                            
        $sequence_21 = { 4885c0 746a 33d2 488bc8 448d4250 }
                                                                        
        $sequence_22 = { 281a 48 ee 7502 4e 40 }
                                                                                    
        $sequence_23 = { 0f84d3000000 458b10 4585d2 0f84c7000000 488b4120 }
                                                                        
        $sequence_24 = { 9d e279 3d2dcac93b 45 7d58 95 }
                                                                                    
        $sequence_25 = { a2???????? d24b46 92 c55151 }
                                                            
        $sequence_26 = { 8b4518 8d4430fd f7f6 440fb7e8 }
                                                            
        $sequence_27 = { 2be8 7455 66ff432e 443806 7443 4c8d4c2468 458bc7 }
                                                                                                
        $sequence_28 = { 8bf2 7cb7 8b8424e8000000 895704 4489570c 03c5 }
                                                                                    
        $sequence_29 = { 7434 4c8d4102 418bd2 453810 7409 ffc2 }
                                                                                    
        $sequence_30 = { ff15???????? 8b464c 8d581f 83e3e0 899c2490000000 747d }
                                                                                    
        $sequence_31 = { 9aa1e0301a7317 48 b131 7fa8 }
                                                            
        $sequence_32 = { 399e38194111 5a e3f7 c4614f 7a0f 28832d7424e3 }
                                                                                    
        $sequence_33 = { 95 367a3e 2d02ca3b45 05bd6f0e7b 2d3f459239 5a 7852 }
                                                                                                
        $sequence_34 = { 16 d24055 2672f7 6232 ce 3d2033ce3d 6215???????? }
                                                                                                
        $sequence_35 = { 74e5 01c4 035dfc 022464 b428 40 40 }
                                                                                                
    condition:
        7 of them and filesize < 548864
}

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

875b6aef-4d9a-428d-a1d0-863f0516b2cd

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion