Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe %WINDIR%\smss.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\autorun.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
Executes the following:
- <SYSTEM32>\attrib.exe +h +s <Drive name for removable media>:\autorun.inf
- <SYSTEM32>\attrib.exe +h +s <Drive name for removable media>:\autorun.exe
- <SYSTEM32>\attrib.exe +h +s Z:\autorun.inf
- <SYSTEM32>\attrib.exe +h +s Z:\autorun.exe
- <SYSTEM32>\attrib.exe +h +s A:\autorun.inf
- <SYSTEM32>\attrib.exe +h +s A:\autorun.exe
- <SYSTEM32>\attrib.exe +h +s C:\autorun.inf
- <SYSTEM32>\attrib.exe +h +s C:\autorun.exe
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '10.0.0.1:5555'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
Modifies file system :
Creates the following files:
- %WINDIR%\smss.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\autorun.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
