win_sidetwist_auto

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

Detects win.sidetwist.

rule win_sidetwist_auto {

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

    


    strings:
        $sequence_0 = { 53 4883ec20 488d05d47c0300 488901 4889cb 488d4910 e8???????? }
                                                                                                
        $sequence_1 = { 4839d0 0f8563040000 488b4310 48c7c2ffffffff 488b7828 4885ff 740c }
                                                                                                
        $sequence_2 = { 488906 488b05???????? 8b10 85d2 0f857e030000 83430801 488d05864d0a00 }
                                                                                                
        $sequence_3 = { 66480f6eea 488d1d259c0400 660f6cc2 488d151f9c0400 0f1180a0000000 66480f6ec1 66480f6eca }
                                                                                                
        $sequence_4 = { 4889c1 e8???????? 4885c0 0f94c0 84c0 7434 488d45f7 }
                                                                                                
        $sequence_5 = { 66480f6ee2 488d3d4d950400 660f6cc1 488d1554950400 0f118090000000 66480f6ec3 }
                                                                                    
        $sequence_6 = { 4883ec20 488d05c4ba0400 488901 488b4120 4889cb 488b4918 48c7401800000000 }
                                                                                                
        $sequence_7 = { 488d0d69fa0900 c70011000000 48894808 c3 488d0d57fa0900 c70010000000 48894808 }
                                                                                                
        $sequence_8 = { 41395f58 0f85e8faffff 488b8c2440010000 4889f2 e8???????? e9???????? 488b4110 }
                                                                                                
        $sequence_9 = { 7421 4531c9 4c8d05dc1f0100 488d15750d0100 e8???????? 4885c0 740b }
                                                                                                
    condition:
        7 of them and filesize < 2002944
}

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

b416a471-15cb-4e53-9405-3b2154dd287c

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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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