win_vanhelsing_auto

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

Detects win.vanhelsing.

rule win_vanhelsing_auto {

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

    


    strings:
        $sequence_0 = { 8945bc 744a 50 8b459c 0f57c0 03c7 0f2945c0 }
                                                                                                
        $sequence_1 = { 03d3 8bc2 8995d8fbffff 138d84fbffff 33c6 8bb5f8fbffff 898db0fbffff }
                                                                                                
        $sequence_2 = { 897d9c ff7328 e8???????? 8b7320 83c40c }
                                                                        
        $sequence_3 = { 59 59 c3 6a10 68???????? e8???????? 8b7508 }
                                                                                                
        $sequence_4 = { 898518ffffff 13f7 3385c8feffff 8bce 89b514ffffff 338d0cffffff 8bf0 }
                                                                                                
        $sequence_5 = { 0facc818 c1e208 c1e918 0bd1 899d78f7ffff 8b8df8f7ffff 33db }
                                                                                                
        $sequence_6 = { 83c40c 33ff 837b2040 0f82f1000000 b828000000 83c618 2b45b8 }
                                                                                                
        $sequence_7 = { 8d4db8 2bc1 d1f8 3b4580 7358 807d8600 8a888cd44800 }
                                                                                                
        $sequence_8 = { 0f29ad00ffffff 0f28eb 0f299d10ffffff 660fd4e8 0f29a540feffff 0f57fc 0f28c5 }
                                                                                                
        $sequence_9 = { 898704feffff 0bce 8b8570fbffff f7a5e8fbffff 898f00feffff 8bf8 8bda }
                                                                                                
    condition:
        7 of them and filesize < 2981888
}

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

f9257277-a099-4ef7-a17c-a5858c5a56af

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