high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Included in our products from | February 2006 (4.02) |
| Protection available since | 16 December 2005 03:43:27 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Rbot-BCL is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-BCL spreads:
- to other network computers infected with: W32/MyDoom and W32/Bagle
- to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WebDav (MS03-007) and UPNP (MS01-059)
- by copying itself to network shares protected by weak passwords
W32/Rbot-BCL 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-BCL copies itself to <System>\dskmon32.exe.
The following registry entries are created to run dskmon32.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
diskchk32
dskmon32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
diskchk32
dskmon32.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
diskchk32
dskmon32.exe
Registry entries are set as follows:
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
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