DarkGate - Drop DarkGate Loader In C:\Temp Directory

    Date: 08/06/2024

    Severity: Medium

    Summary

    Identifies attackers attempting to save, decrypt, and execute the DarkGate Loader in the C:\temp folder.

    Indicators of Compromise (IOC) List

    TargetFilename

    ':\temp\'

    '.au3'

    '\autoit3.exe'

    Image

    ':\temp\'

    '.au3'

    '\autoit3.exe'

    Gurucul Threat Detection and Incident Response (TDIR) Queries for Detection

    Detection Query 1

    ((resourceName = "Windows Security"  AND eventtype = "4688"  ) AND newprocessname = ":\temp"  ) AND processname in (".au3" , "\autoit3.exe")

    Detection Query 2

    (resourceName = "Sysmon"  AND imagepath = ":\temp"  ) AND image in (".au3" , "\autoit3.exe")

    Detection Query 3

    ((technologygroup = "EDR" AND eventtype = "4688"  ) AND newprocessname = ":\temp"  ) AND processname in (".au3" , "\autoit3.exe")

    Detection Query 4

    (technologygroup = "EDR"  AND imagepath = ":\temp"  ) AND image in (".au3" , "\autoit3.exe")

    Category: Sigma

    Reference:

    Sigma Detection Rule for DarkGate AutoIt Files Saved in the Temp Folder  

    BleepingComputer Report on DarkGate Malware Exploiting Windows SmartScreen

    Trend Micro Analysis of CVE-2024-21412 and DarkGate Exploitation

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