win_deltas_auto

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

Detects win.deltas.

rule win_deltas_auto {

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

    


    strings:
        $sequence_0 = { 0bc1 33c7 03c5 8b6c2420 8d8410c3595b65 8bd0 }
                                                                                    
        $sequence_1 = { 8bf0 ffd3 03f0 8b4504 83f8ff 7510 5f }
                                                                                                
        $sequence_2 = { 50 8d4d08 e8???????? 85c0 751a 682c010000 ffd3 }
                                                                                                
        $sequence_3 = { 81c404010000 c20800 5f 83c8ff 5d }
                                                                        
        $sequence_4 = { 52 8d4e08 e8???????? eb43 8bbe80040000 33c0 6a1e }
                                                                                                
        $sequence_5 = { 0f8482000000 8d84240c010000 50 ff15???????? 85c0 740e 8d8c240c010000 }
                                                                                                
        $sequence_6 = { 8b542414 52 ffd6 5f 5e 33c0 }
                                                                                    
        $sequence_7 = { 8d8c2458010000 50 57 68???????? 51 ff15???????? 8b8c2470020000 }
                                                                                                
        $sequence_8 = { 8dac2a44eabea4 8bd5 c1ea1c c1e504 0bd5 8b6c2444 }
                                                                                    
        $sequence_9 = { 8b35???????? 8d442470 50 885c2467 ffd6 8d8c2480000000 8bf8 }
                                                                                                
    condition:
        7 of them and filesize < 90112
}

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

82c0bca3-ada0-421f-9019-66fea10f612a

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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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