high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 25 July 2007 13:11:12 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Spybot-OA is a worm with IRC backdoor functionality for the Windows platform.
W32/Spybot-OA spreads to other network computers by exploiting common buffer overflow vulnerabilities, including RealVNC (CVE-2006-2369).
W32/Spybot-OA 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/Spybot-OA copies itself to <System>\dllcache\upnt.exe and creates the file <Temp>\~dfaf57.tmp.
The file upnt.exe is registered as a new system driver service named "Universal Printer NT Service", with a display name of "Universal Printer NT Service" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\Universal Printer NT Service
W32/Spybot-OA sets the following registry entries, disabling the automatic startup of other software:
HKLM\SYSTEM\CurrentControlSet\Services\wuauserv
Start
4
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess
Start
4
Note: disabling autostart for the SharedAccess service deactivates the Microsoft Internet Connection Firewall (ICF).
The following registry entry is set:
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
|
