Technical Information
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\System32.exe' = '%TEMP%\System32.exe:*:Enabled:System32.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\System32.exe" "System32.exe" ENABLE
Modifies file system:
Creates the following files:
- %TEMP%\System32.exe
Network activity:
Connects to:
- '15##.kro.kr':1513
UDP:
- DNS ASK 15##.kro.kr
Miscellaneous:
Creates and executes the following:
- '%TEMP%\System32.exe'
