Gaobot.KRM is a worm that connects to several IRC servers in order to receive remote control commands, acting as a backdoor. It can be instructed to log keystrokes, send spam, launch DoS (Denial of Service) attacks, download files, etc.
This worm also ends processes belonging to several security tools, such as antivirus programs and firewalls, among others. This leaves the affected computer vulnerable to the attack of other malware.
Additionally, Gaobot.KRM installs its own FTP (File Transfer Protocol) and TFTP (Trivial File Transfer Protocol) servers on the affected computer in order to spread to other systems.
Gaobot.KRM spreads across the Internet by exploiting the vulnerabilities LSASS, RPC DCOM, Workstation Service, WebDAV, UPnP, SQL Server Web Tasks and Invalid Universal Plug and Play Request.
It is highly recommendable to download the security patches for the vulnerabilities LSASS, RPC DCOM, Workstation Service, WebDAV, UPnP, SQL Server Web Tasks and Invalid Universal Plug and Play Request from the Microsoft website.