W32/Rbot-GLJ is a worm with IRC backdoor functionality for the Windows platform.
W32/Rbot-GLJ 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.
W32/Rbot-GLJ spreads
- via network shares
- to other network computers by exploiting common buffer overflow vulnerabilities
When first run W32/Rbot-GLJ copies itself to <System>\hanz.exe.
The following registry entries are created to run hanz.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
HanUpdate
hanz.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
HanUpdate
hanz.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
HanUpdate
hanz.exe