win_octowave_auto

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

Detects win.octowave.

rule win_octowave_auto {

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

    


    strings:
        $sequence_0 = { ffd0 84c0 7527 807c241401 7513 384334 740e }
                                                                                                
        $sequence_1 = { ff7514 ff7510 ff750c ff7508 e8???????? 84c0 7518 }
                                                                                                
        $sequence_2 = { ff75f8 ff75f4 57 e8???????? ff75e8 894610 e8???????? }
                                                                                                
        $sequence_3 = { bd08000000 e8???????? 83c408 33f6 8b4308 0fb60430 50 }
                                                                                                
        $sequence_4 = { ff34857c712d10 8d46ff 50 ff7518 e8???????? 8b55f8 83c410 }
                                                                                                
        $sequence_5 = { e8???????? 8bc8 83f9ff 0f8413010000 8bc6 83ff0f 7602 }
                                                                                                
        $sequence_6 = { f30f5c442454 0f28e3 f30f114c241c f30f59e1 f30f100d???????? f30f11442404 f30f59442470 }
                                                                                                
        $sequence_7 = { ff86201b0000 8b86201b0000 c684302013000000 52 55 ff742420 ff74242c }
                                                                                                
        $sequence_8 = { f30f59f7 f30f5cd8 f30f58e6 0f28f3 39442470 7e5a 8b4c247c }
                                                                                                
        $sequence_9 = { ff742420 ff742420 68???????? 56 e8???????? 0fb6442476 50 }
                                                                                                
    condition:
        7 of them and filesize < 7258112
}

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

66faef6e-0458-4538-a3c6-98771eeff33a

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