W32/Rbot-T is a worm which attempts to spread to remote network shares. It
also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.
W32/Rbot-T spreads to network shares with weak passwords as a result of the
backdoor Trojan element receiving the appropriate command from a remote user.
W32/Rbot-T copies itself to the Windows system folder as NAVSCAN64.EXE
and creates entries at the following locations in the registry so as to run itself
on system startup:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
W32/Rbot-T may set the following registry entries:
HKLM\SOFTWARE\Microsoft\Ole\EnableDCOM = "N"
HKLM\SYSTEM\CurrentControlSet\Control\Lsa\restrictanonymous = "1"
W32/Rbot-T may try to delete the C$, D$, E$, IPC$ and ADMIN$ network shares on the host computer.
W32/Rbot-T may also try to log keystrokes and window text to a file called
DEBUG.TXT in the Windows system folder.