Anti-virus program found file which i checked to be Malware

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 18:59:10, on 19.10.2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16850)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\F-Secure\Anti-Virus\fsgk32st.exe
C:\Program Files\F-Secure\Anti-Virus\FSGK32.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\F-Secure\Anti-Virus\fssm32.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\wuauclt.exe
G:\HijackThis\HijackThis.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\F-Secure\FSGUI\fsavgui.exe

O23 - Service: FSGKHS (F-Secure Gatekeeper Handler Starter) - F-Secure Corporation - C:\Program Files\F-Secure\Anti-Virus\fsgk32st.exe
O23 - Service: F-Secure Automatic Update Agent (FSAUA) - F-Secure Corporation - C:\Program Files\F-Secure\FSAUA\program\fsaua.exe
O23 - Service: F-Secure Anti-Virus Firewall Daemon (FSDFWD) - F-Secure Corporation - C:\Program Files\F-Secure\FWES\Program\fsdfwd.exe
O23 - Service: Logitech Bluetooth Service (LBTServ) - Logitech, Inc. - C:\Program Files\Common Files\Logitech\Bluetooth\LBTServ.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe

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End of file - 1515 bytes

[3days:1w91kved][/3days:1w91kved]

a lack of response,