DLL_TinyTurla_PE_Properties_Feb2024

YARA detection rule by Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell · Unknown

Rule DLL_TinyTurla_PE_Properties_Feb2024 (No description metadata provided).

import "pe"
rule DLL_TinyTurla_PE_Properties_Feb2024 {
    meta:
        Description = "Detects Tiny Turla Implant used by Turla APT based on PE import and export properties"
        author = "Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell"
        Reference = "https://blog.talosintelligence.com/tinyturla-next-generation/"
        Hash = "267071df79927abd1e57f57106924dd8a68e1c4ed74e7b69403cdcdf6e6a453b"
        date = "2024-02-20"
        yarahub_author_twitter = "@RustyNoob619"
        yarahub_reference_md5 = "e4c356cf822cda0ca8e8161cb5bf6c39"
        yarahub_uuid = "d7e7e3fd-50e7-48fb-b5bf-283bf20e5157"
        yarahub_license = "CC0 1.0"
        yarahub_rule_matching_tlp = "TLP:WHITE"
        yarahub_rule_sharing_tlp = "TLP:WHITE"
        malpedia_family = "win.tinyturla_ng"
        
    condition:
        pe.imphash() == "2240ae6f0dcbc0537836dfd9205a1f2b"
        or
        (pe.imports("KERNEL32.dll","RtlPcToFileHeader")
        and pe.imports("KERNEL32.dll","GetUserDefaultLCID")
        and pe.imports("KERNEL32.dll","GetOEMCP")
        and pe.imports("ADVAPI32.dll","RegisterServiceCtrlHandlerW")
        and pe.imports("ADVAPI32.dll","SetServiceStatus")  
        and pe.imports("WINHTTP.dll","WinHttpQueryDataAvailable")
        and pe.imports("WINHTTP.dll","WinHttpWriteData"))
        and pe.export_details[0].name == "ServiceMain"
       
 }

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

8cd2d054-8730-4ef5-bdb5-1a76a601a47e

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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

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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.

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

[[ currentRule.title ]]

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