W32/Rbot-VR is a network worm and IRC backdoor for the Windows platform.
W32/Rbot-VR spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilities (including DCOM-RPC, LSASS, WebDAV and UPNP) and using backdoors opened by other worms or Trojans.
W32/Rbot-VR can be controlled by a remote attacker over IRC channels. The backdoor component of W32/Rbot-VR can be instructed by a remote user to perform the following functions:
start an FTP server
start a Proxy server
start a web server
take part in distributed denial of service (DDoS) attacks
log keypresses
capture screen/webcam images
packet sniffing
port scanning
download/execute arbitrary files
start a remote shell (RLOGIN)
The worm copies itself to a file named svigost.exe in the Windows system folder and creates the following registry entries:
HKCU\Microsoft\OLE
Microsoft Explorer
svapache.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Microsoft Explorer
svapache.exe
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Explorer
svapache.exe
Patches for the operating system vulnerabilities exploited by W32/Rbot-VR can be obtained from Microsoft at:
http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx
http://www.microsoft.com/technet/security/bulletin/ms03-039.mspx
http://www.microsoft.com/technet/security/bulletin/ms03-007.mspx
http://www.microsoft.com/technet/security/bulletin/ms01-059.mspx