high
Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Included in our products from | December 2005 (4.00) |
| Protection available since | 19 October 2005 11:31:58 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Rbot-ASM is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-ASM spreads to other network computers infected with: Troj/Kuang, Troj/Sub7, W32/Sasser, Troj/NetDevil, W32/MyDoom, W32/Bagle and Troj/Optix and to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WebDav (MS03-007), IIS5SSL (MS04-011) (CAN-2003-0719), UPNP (MS01-059), Dameware (CAN-2003-1030) and ASN.1 (MS04-007).
W32/Rbot-ASM 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-ASM moves itself to <System>\<random filename>.
The following registry entries are created to run W32/Rbot-ASM on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MICROSFT RAMA UPDATE SUPPORT
<random filename>
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MICROSFT RAMA UPDATE SUPPORT
<random filename>
Registry entries are set as follows:
HKCU\Software\Microsoft\OLE
MICROSFT RAMA UPDATE SUPPORT
<random filename>
The following patches for the operating system vulnerabilities exploited by W32/Rbot-ASM can be obtained from the Microsoft website:
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