Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update Service' = '<SYSTEM32>\svchost\Windows Update Service.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\coresystemtask
Modifies file system
Creates the following files
- <SYSTEM32>\svchost\windows update service.exe
- %WINDIR%\windows update service.exe
Deletes itself.
Network activity
TCP
Other
- '34.##9.100.209':443
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\svchost\windows update service.exe'
Executes the following
- '<SYSTEM32>\cmd.exe' /c schtasks /create /sc onstart /tn "CoreSystemTask" /tr "%WINDIR%\Windows Update Service.exe" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /sc onstart /tn "CoreSystemTask" /tr "%WINDIR%\Windows Update Service.exe" /rl HIGHEST /f
- '<SYSTEM32>\svchost\windows update service.exe' ' (with hidden window)
