win_newpass_auto

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

Detects win.newpass.

rule win_newpass_auto {

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

    


    strings:
        $sequence_0 = { 4885c0 7904 f20f58f3 41b601 48ffc3 }
                                                                        
        $sequence_1 = { 488b4c2478 e8???????? 32c0 eb02 b001 488b8c2498000000 }
                                                                                    
        $sequence_2 = { 83c037 48837f1810 7205 488b0f eb03 488bcf 880451 }
                                                                                                
        $sequence_3 = { 488d4db0 e8???????? 90 48837d6810 7209 488b4d50 e8???????? }
                                                                                                
        $sequence_4 = { e8???????? 4c8b542458 498902 8b0b c6040100 803d????????00 753e }
                                                                                                
        $sequence_5 = { 488b03 48634804 4803cb 8b8424a0000000 85c0 7418 8b5110 }
                                                                                                
        $sequence_6 = { 48b80000000000000080 c7411006220000 4885f8 8b4110 488939 0f44c2 }
                                                                                    
        $sequence_7 = { 4c8b05???????? 4d2bc1 0f1f840000000000 8bc1 25ff000080 7d09 }
                                                                                    
        $sequence_8 = { 4c8bc7 49ffc0 6643833c4200 75f5 498bd2 488d4d00 }
                                                                                    
        $sequence_9 = { ff15???????? 488bf8 4885c0 0f84d2000000 48897008 0fb74516 4533ed }
                                                                                                
    condition:
        7 of them and filesize < 2654208
}

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

e20a3c3b-1f8f-4162-949d-48a525fa62db

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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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