Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsFireWall' = '%TEMP%\/WindowsFireWall.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'winlogon.exe' = '%TEMP%\<Virus name>.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Sys.exe
Malicious functions:
Creates and executes the following:
- %TEMP%\javaw.exe
- %TEMP%\<Virus name>.exe
Executes the following:
- <SYSTEM32>\wscript.exe ""%TEMP%\s4c.vbs""
Modifies file system :
Creates the following files:
- C:\autorun.inf
- %TEMP%\javaw.exe
- %TEMP%\WindowsFireWall.exe
- %TEMP%\<Virus name>.exe
- %TEMP%\s4c.vbs
- C:\Sys.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Sys.exe
- <Drive name for removable media>:\autorun.inf
- C:\Sys.exe
- C:\autorun.inf
Deletes the following files:
- %TEMP%\s4c.vbs
Deletes itself.
Network activity:
Connects to:
- 'au######on.whatismyip.com':80
TCP:
HTTP GET requests:
- au######on.whatismyip.com/n09230945.asp
UDP:
- DNS ASK au######on.whatismyip.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: '' WindowName: '<Auxiliary name>'
- ClassName: '' WindowName: '%TEMP%\<Virus name>.exe'
