Win32/Dialer process stopped but no virus found

Every 20 min or so I am getting the following 2 entries:

07/11/2008 12:54:42
Real-time file system protection
file C:\DOCUME~1\*****\LOCALS~1\Temp\BIT59.tmp probably a variant of Win32/Dialer.U trojan cleaned by deleting - quarantined NT AUTHORITY\SYSTEM Event occurred on a file modified by the application: C:\WINDOWS\System32\svchost.exe.

07/11/2008 12:54:42
HTTP filter file h**p://78.157.143.198/lm/engine.exe
probably a variant of Win32/Dialer.U trojan connection terminated - quarantined NT AUTHORITY\SYSTEM Threat was detected upon access to web by the application: C:\WINDOWS\system32\svchost.exe.

However when I run a scan no virus is found - any ideas?

Thanks

 

Hello, the best will be, when you send log from ESET SysInspector to support[at]eset.com. There can be undetected downloader, e.g.