win_ratel_auto

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

Detects win.ratel.

rule win_ratel_auto {

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

    


    strings:
        $sequence_0 = { 890424 ff5230 89c2 83ec08 8b45d0 39d6 ba01000000 }
                                                                                                
        $sequence_1 = { 8b4510 8b5514 85db 7570 8b59fc 8d73ff 8971fc }
                                                                                                
        $sequence_2 = { 8b4d10 837d14ff 0f94c2 85c9 0f95c0 20d0 8845b8 }
                                                                                                
        $sequence_3 = { c645aa00 85f6 0f840afeffff 0fb64db0 ba0f000000 8d7e01 884dbc }
                                                                                                
        $sequence_4 = { 8b4108 3b410c 0f826bffffff 8db42600000000 8b01 ff5028 8b4d08 }
                                                                                                
        $sequence_5 = { 29d3 d1fb 89df bbffffff1f 2b5dd0 39df 0f4edf }
                                                                                                
        $sequence_6 = { c743f8???????? c743fc00000000 c74370c01d4c00 83c418 5b e9???????? 890424 }
                                                                                                
        $sequence_7 = { 72ea 897c2418 8b7c241c 750c 8b16 01542414 8b5604 }
                                                                                                
        $sequence_8 = { 89942434010000 8b507c 89942438010000 8b9080000000 8994243c010000 8b9084000000 89942440010000 }
                                                                                                
        $sequence_9 = { b801000000 0f4ef0 0175e4 8b7de4 397de0 0f8488010000 8b75d0 }
                                                                                                
    condition:
        7 of them and filesize < 2174976
}

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

c50c8660-d144-4321-af5a-b545e5b829f1

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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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