Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\USB.exe
Malicious functions:
Creates and executes the following:
- '%APPDATA%\ddn.exe'
Executes the following:
- '<SYSTEM32>\wscript.exe' "<SYSTEM32>\s4c.vbs"
Modifies file system :
Creates the following files:
- <SYSTEM32>\s4c.vbs
- %APPDATA%\ddn.exe
- C:\USB.exe
- C:\autorun.inf
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\USB.exe
- C:\autorun.inf
- C:\USB.exe
Deletes the following files:
- <SYSTEM32>\s4c.vbs
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
