IRCBot.SS is a backdoor that connects to several IRC servers in order to receive remote control commands. It can be instructed to download files, send information about the bot version and the operating system of the affected computer, etc.
Additionally, it disables firewalls such as Mcafee, Windows XP and ZoneAlarm, among others, Windows Security Alerts, and Kaspersky and Symantec antivirus services.
IRCBot.SS 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.