Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe zchvc.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\ccc.exe
Malicious functions:
Creates and executes the following:
- %WINDIR%\zchvc.exe
Modifies file system :
Creates the following files:
- %WINDIR%\zchvc.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\ccc.exe
- <Drive name for removable media>:\AUTORUN.INF
- <Full path to virus>
- %WINDIR%\zchvc.exe
Deletes the following files:
- %TEMP%\~DFA3CC.tmp
Network activity:
Connects to:
- 'hk###.no-ip.org':675
UDP:
- DNS ASK hk###.no-ip.org
- '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'Administrador de tareas de Windows'
