high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Included in our products from | March 2006 (4.03) |
| Protection available since | 3 November 2005 21:34:45 (GMT) |
| Last updated | 27 January 2006 03:13:48 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Rbot-AVC is a worm with IRC backdoor functionality for the Windows platform.
W32/Rbot-AVC spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WKS (MS03-049) (CAN-2003-0812), WebDav (MS03-007), PNP (MS05-039), IIS5SSL (MS04-011) (CAN-2003-0719), UPNP (MS01-059), Veritas (CAN-2004-1172), Dameware (CAN-2003-1030), and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords and by using the following Trojan backdoors: Troj/Kuang, Troj/Sub7, Troj/NetDevil, W32/MyDoom, W32/Bagle, Troj/Optix.
The following patches for the operating system vulnerabilities exploited by W32/Rbot-AVC can be obtained from the Microsoft website:
MS04-011
MS04-012
MS03-049
MS03-007
MS05-039
MS01-059
MS04-007
W32/Rbot-AVC 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-AVC copies itself to <Windows system folder>\av32.pif.
The following registry entries are created to run av32.pif on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
icrosof Avps32 Control
av32.pif
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
icrosof Avps32 Control
av32.pif
Registry entries are set as follows:
HKCU\Software\Microsoft\OLE
icrosof Avps32 Control
av32.pif
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
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