W32/Rbot-GTL is a worm with IRC backdoor functionality for the Windows platform.
W32/Rbot-GTL runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
When first run W32/Rbot-GTL copies itself to <System>\wsim32.exe.
The following registry entries are created to run wsim32.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft
wsim32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft
wsim32.exe