win_strelastealer_auto

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

Detects win.strelastealer.

rule win_strelastealer_auto {

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

    


    strings:
        $sequence_0 = { 8bf0 89742418 83feff 0f8476020000 8d542428 52 }
                                                                                    
        $sequence_1 = { 50 8bc7 8bcb c744240c00000000 }
                                                            
        $sequence_2 = { 8b4c2428 89442440 89442444 89442434 }
                                                            
        $sequence_3 = { 01c7 897d14 8d1401 81c200040000 }
                                                            
        $sequence_4 = { 03c7 751f 488b85a0010000 488b8888000000 488d0505540100 }
                                                                        
        $sequence_5 = { 08c1 20ca 80f101 89c8 }
                                                            
        $sequence_6 = { 015304 eb55 4d85c0 7e27 488bd7 4c8b4dc7 4b8b8ccbc0120600 }
                                                                                                
        $sequence_7 = { 895c2420 4533c0 33d2 498bce ff15???????? 85c0 0f848a000000 }
                                                                                                
        $sequence_8 = { 08c1 08d3 89ca 80e201 }
                                                            
        $sequence_9 = { ff15???????? ff15???????? 3db7000000 740a e8???????? e8???????? }
                                                                                    
        $sequence_10 = { 08c1 08da 80f201 89c8 }
                                                            
        $sequence_11 = { 0f8f78020000 488bcf 4a8d14fd3e000000 4b0394cb70b00100 8a02 88440dff }
                                                                                    
        $sequence_12 = { 4c897c2420 ff15???????? 85c0 0f85fb000000 488d15be640100 }
                                                                        
        $sequence_13 = { 48898190000000 488d058c180000 498b0b 4889458f 488b454f }
                                                                        
        $sequence_14 = { 01c1 b8dc8856d3 29c8 b9dd8856d3 }
                                                            
        $sequence_15 = { 8a06 88458f 897d93 41bc01000000 4c8d1dbe37ffff 81f9e9fd0000 }
                                                                                    
        $sequence_16 = { 6a1a 6a00 ff15???????? 68???????? ff15???????? 6a17 }
                                                                                    
        $sequence_17 = { 48897c2438 448d4750 897c2430 488d15e8680100 c744242803000000 4533c9 }
                                                                                    
        $sequence_18 = { 8b35???????? 51 8d8c246c010000 51 ffd6 6804010000 }
                                                                                    
        $sequence_19 = { 8d442410 50 6800040000 56 53 896c2420 ffd7 }
                                                                                                
        $sequence_20 = { 08c1 0f1f440000 b810000000 e8???????? }
                                                            
        $sequence_21 = { 51 8d94247c030000 52 e8???????? 8be8 8d442420 }
                                                                                    
        $sequence_22 = { 83c8ff f00fc101 83f801 751f 488b0d???????? 488d1d99350100 483bcb }
                                                                                                
        $sequence_23 = { 8b8c2488000000 85c9 0f8483000000 03f1 }
                                                            
    condition:
        7 of them and filesize < 872448
}

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

1bd72422-d620-4af5-bbd5-10d210a115a6

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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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