Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Driversys' = '%WINDIR%\cvnfyih.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'VGA' = '<Full path to virus>'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'VGA' = '<Full path to virus>'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Driversys' = '%WINDIR%\cvnfyih.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Taskman' = '%APPDATA%\rsbuotu.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'msnmsgs' = '%APPDATA%\rsbuotu.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'msnmsgs' = '%APPDATA%\rsbuotu.exe'
Malicious functions:
Injects code into
the following system processes:
- System
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- C:\RECYCLER\S-1-5-21-7588451545-2903502216-362350422-9268\Desktop.ini
- C:\RECYCLER\S-1-5-21-7588451545-2903502216-362350422-9268\mcssc.exe
- %APPDATA%\rsbuotu.exe
- %WINDIR%\cvnfyih.exe
Sets the 'hidden' attribute to the following files:
- %WINDIR%\cvnfyih.exe
- C:\RECYCLER\S-1-5-21-7588451545-2903502216-362350422-9268\mcssc.exe
- <Full path to virus>
- %APPDATA%\rsbuotu.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
