Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'Realtek HD Audio Universal Service' = '%APPDATA%\Microsoft\Protect\SecurityHealthSystray.exe'
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath <Full path to file>
Modifies file system
Creates the following files
- %APPDATA%\microsoft\protect\securityhealthsystray.exe
- nul
Sets the 'hidden' attribute to the following files
- <Full path to file>
Miscellaneous
Executes the following
- '<SYSTEM32>\attrib.exe' +h +s <Full path to file>
- '<SYSTEM32>\attrib.exe' +h +s <Full path to file>' (with hidden window)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath <Full path to file>' (with hidden window)
