W32/Rbot-ACZ

Please follow the instructions for removing worms.

W32/Rbot-ACZ is a network worm with backdoor Trojan functionality for the Windows platform.

The worm copies itself to a file named p2pnetwork.exe in the Windows system folder and creates the following registry entries:

HKCU\Software\Microsoft\OLE
p2pnetwork.exe
"p2pnetwork.exe"

HKCU\System\CurrentControlSet\Control\Lsa
p2pnetwork.exe
"p2pnetwork.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
p2pnetwork.exe
"p2pnetwork.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
p2pnetwork.exe
"p2pnetwork.exe"

HKLM\Software\Microsoft\OLE
p2pnetwork.exe
"p2pnetwork.exe"

HKLM\System\CurrentControlSet\Control\Lsa
p2pnetwork.exe
"p2pnetwork.exe"

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
p2pnetwork.exe
"p2pnetwork.exe"

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
p2pnetwork.exe
"p2pnetwork.exe"

W32/Rbot-ACZ 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-ACZ can be controlled by a remote attacker over IRC channels. The backdoor component of W32/Rbot-ACZ 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)
steal product registration information from certain software

Patches for the operating system vulnerabilities exploited by W32/Rbot-ACZ can be obtained from Microsoft at:

http://www.microsoft.com/technet/security/bulletin/ms04-012.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