high
Summary
Summary
Action- More Information
| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Included in our products from | December 2005 (4.00) |
| Protection available since | 14 October 2005 22:23:26 (GMT) |
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Rbot-ARS is a worm and IRC backdoor for the Windows platform.
W32/Rbot-ARS spreads to other network computers infected with W32/MyDoom and W32/Bagle and to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012) and WebDav (MS03-007).
W32/Rbot-ARS 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-ARS copies itself to <Windows system folder>\FireWall-Update1.exe.
The following registry entries are created to run FireWall-Update1.exe on
startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Life FireWall Update1
FireWall-Update1.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Life FireWall Update1
FireWall-Update1.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Life FireWall Update1
FireWall-Update1.exe
Registry entries are set as follows:
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1
Patches for the operating system vulnerabilities exploited by W32/Rbot-ARS can be obtained from Microsoft at:
MS03-007
MS04-011
MS04-012
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