Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'Windows Services' = '%APPDATA%\Windows Update Folder\Windows Update.exe'
Malicious functions
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%WINDIR%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" "RegAsm.exe" ENABLE
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\regasm.exe
Modifies file system
Creates the following files
- %APPDATA%\windows update folder\windows update.exe
Network activity
Connects to
- '0.###.ngrok.io':14274
UDP
- DNS ASK 0.###.ngrok.io
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%WINDIR%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" "RegAsm.exe" ENABLE' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework\v4.0.30319\regasm.exe'
