Webber.AX is a backdoor that opens a random port in order to allow hackers to remotely access the computer.
It installs a keylogger and logs the information entered in Internet Explorer forms, and also steals passwords belonging to Outlook accounts, Internet Explorer proxy, connections to POP3 and SMTP servers, etc.
Additionally, Webber.AX allows the affected computer to be used as a proxy server.
Webber.AX does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.