win_ransomhub_auto

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

Detects win.ransomhub.

rule win_ransomhub_auto {

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

    


    strings:
        $sequence_0 = { 48ffc3 90 4939db 7365 4c898424d0000000 4c89e8 4c89d9 }
                                                                                                
        $sequence_1 = { 488d0515dd1200 e8???????? 833d????????00 750e 488b8c24202b0000 48894818 eb11 }
                                                                                                
        $sequence_2 = { e8???????? 4889c1 4889df 488d0549052f00 488b5c2438 0f1f4000 e8???????? }
                                                                                                
        $sequence_3 = { 8854242b 0fb654241c 0fb674241f 31f2 8854242c 0fb654241e 4129d7 }
                                                                                                
        $sequence_4 = { e8???????? 488b6d00 488b8c2400010000 488b9424f8000000 4883f90e 7e4f 48be03ce445067fcb5d4 }
                                                                                                
        $sequence_5 = { eb09 4889c7 90 e8???????? 488d0514f22e00 488b5c2438 488d0d6b903300 }
                                                                                                
        $sequence_6 = { e8???????? 4c89e0 4c89e9 e8???????? 4c89e9 4889da e8???????? }
                                                                                                
        $sequence_7 = { 493b6610 0f86bf000000 4883ec38 48896c2430 488d6c2430 48ba6162f35d4d2e0b6e 488954241a }
                                                                                                
        $sequence_8 = { e8???????? 488d1d3c9a1900 4889c1 488d3d12941b00 488b742428 488d05e6633f00 e8???????? }
                                                                                                
        $sequence_9 = { 88542455 0fb654242c 0fb674242a 01f2 88542456 0fb6542422 4131d7 }
                                                                                                
    condition:
        7 of them and filesize < 12821504
}

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

7f277ff6-be0b-4d62-b2b0-e012d33031d1

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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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