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>
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -Enabl...
Modifies file system
Creates the following files
- %APPDATA%\microsoft\protect\securityhealthsystray.exe
- nul
- %TEMP%\browsers-temp\all_cookies.txt
Sets the 'hidden' attribute to the following files
- <Full path to file>
- %APPDATA%\microsoft\protect\securityhealthsystray.exe
Deletes following files that it created itself
- %TEMP%\browsers-temp\all_cookies.txt
Network activity
Connects to
- 'di##ord.com':443
- 'di###rdapp.com':443
TCP
Other
- 'di##ord.com':443
- 'di###rdapp.com':443
UDP
- DNS ASK di##ord.com
- DNS ASK di###rdapp.com
Miscellaneous
Executes the following
- '<SYSTEM32>\attrib.exe' +h +s <Full path to file>
- '<SYSTEM32>\wbem\wmic.exe' cpu get Name
- '<SYSTEM32>\attrib.exe' +h +s %APPDATA%\Microsoft\Protect\SecurityHealthSystray.exe
- '<SYSTEM32>\wbem\wmic.exe' os get Caption
- '<SYSTEM32>\attrib.exe' +h +s <Full path to file>' (with hidden window)
- '<SYSTEM32>\wbem\wmic.exe' cpu get Name' (with hidden window)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath <Full path to file>' (with hidden window)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -Enabl...' (with hidden window)
- '<SYSTEM32>\wbem\wmic.exe' os get Caption' (with hidden window)
