Thread: Puzzling log file contents

My computer behaves like it has a Trojan. I scanned it with Trend Micro,
which found no viruses. However, some log entries were peculiar. I have
Windows XP on Dell Dimension 2400. I have networking disabled. I didn't
assign permissions. I'm Owner and should have access to everything. Yet, the
virus scan could not access the files below and therefore couldn't scan them.

What virus would do this? Is there any way I can make these files
accessible? If I format my disk, will this inaccessibility go away?

The affected files and the reason the scan gave for not being able to access
them are listed below.

Thank you for any information you can provide.

LOG SAID ERROR OCCURRED WHILE SCANNING FILE

C:\Documents and Settings\LocalService\NTUSER.DAT
C:\Documents and Settings\LocalService\ntuser.dat.LOG

C:\Documents and Settings\LocalService\Local Settings\Application
Data\Microsoft\Windows\UsrClass.dat

C:\Documents and Settings\LocalService\Local Settings\Application
Data\Microsoft\Windows\UsrClass.dat.LOG

C:\Documents and Settings\NetworkService\NTUSER.DAT
C:\Documents and Settings\NetworkService\ntuser.dat.LOG

C:\Documents and Settings\NetworkService\Local Settings\Application
Data\Microsoft\Windows\UsrClass.dat

C:\Documents and Settings\NetworkService\Local Settings\Application
Data\Microsoft\Windows\UsrClass.dat.LOG

C:\Documents and Settings\Owner\NTUSER.DAT
C:\Documents and Settings\Owner\ntuser.dat.LOG

C:\Documents and Settings\Owner\Local Settings\Application
Data\Microsoft\Windows\UsrClass.dat

C:\Documents and Settings\Owner\Local Settings\Application
Data\Microsoft\Windows\UsrClass.dat.LOG

C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcrst.dll

LOG SAID AN ERROR WAS DETECTED
C:\System Volume Information\*.*

LOG SAID COULD NOT SET FILE FOR READING
C:\WINDOWS\Prefetch\AAWSEPERSONAL.EXE-36D1614A.pf
C:\WINDOWS\Prefetch\ACRORD32.EXE-13285B88.pf
C:\WINDOWS\Prefetch\AD-AWARE.EXE-0A62CF06.pf
C:\WINDOWS\Prefetch\ALEUPDAT.EXE-1ED60CC5.pf
C:\WINDOWS\Prefetch\AUPATCH.DAT-21251CC6.pf
C:\WINDOWS\Prefetch\AUPDATE.EXE-2253CB60.pf
C:\WINDOWS\Prefetch\AUTORUN.EXE-055703AF.pf
C:\WINDOWS\Prefetch\AUUNZIP.DAT-09B6AED1.pf
C:\WINDOWS\Prefetch\AUUPDATE.DAT-183E5F6E.pf
C:\WINDOWS\Prefetch\CMD.EXE-087B4001.pf
C:\WINDOWS\Prefetch\CONTROL.EXE-013DBFB5.pf
C:\WINDOWS\Prefetch\DEFRAG.EXE-273F131E.pf
C:\WINDOWS\Prefetch\DEMO32.EXE-25E7AF5B.pf
C:\WINDOWS\Prefetch\DFRGNTFS.EXE-269967DF.pf
C:\WINDOWS\Prefetch\DMADMIN.EXE-00BCB146.pf
C:\WINDOWS\Prefetch\DMREMOTE.EXE-2F82CB90.pf
C:\WINDOWS\Prefetch\DRVMAP.EXE-0DEA7804.pf
C:\WINDOWS\Prefetch\DUMPREP.EXE-1B46F901.pf
C:\WINDOWS\Prefetch\DWWIN.EXE-30875ADC.pf
C:\WINDOWS\Prefetch\EXPLORER.EXE-082F38A9.pf
C:\WINDOWS\Prefetch\FLOPPY.EXE-206ACEFF.pf
C:\WINDOWS\Prefetch\GSS.EXE-006E30E6.pf
C:\WINDOWS\Prefetch\HELPCTR.EXE-3862B6F5.pf
C:\WINDOWS\Prefetch\HELPHOST.EXE-247D2792.pf
C:\WINDOWS\Prefetch\HELPSVC.EXE-2878DDA2.pf
C:\WINDOWS\Prefetch\IDRIVER.EXE-09BCEA7D.pf
C:\WINDOWS\Prefetch\IEXPLORE.EXE-27122324.pf
C:\WINDOWS\Prefetch\IMAPI.EXE-0BF740A4.pf
C:\WINDOWS\Prefetch\IPCONFIG.EXE-2395F30B.pf
C:\WINDOWS\Prefetch\Layout.ini
C:\WINDOWS\Prefetch\LOGON.SCR-151EFAEA.pf
C:\WINDOWS\Prefetch\LOGONUI.EXE-0AF22957.pf
Could not set file for reading on "C:\WINDOWS\Prefetch\LUALL.EXE-30AC8E48.pf
C:\WINDOWS\Prefetch\LUCOMS~1.EXE-02DB5950.pf
C:\WINDOWS\Prefetch\MMC.EXE-2523E022.pf
C:\WINDOWS\Prefetch\MSCONFIG.EXE-35E4DAE9.pf
C:\WINDOWS\Prefetch\MSIEXEC.EXE-2F8A8CAE.pf
C:\WINDOWS\Prefetch\MSIMN.EXE-38BA891D.pf
C:\WINDOWS\Prefetch\MSMSGS.EXE-2B6052DE.pf
C:\WINDOWS\Prefetch\NAVW32.EXE-24F56911.pf
C:\WINDOWS\Prefetch\NAVW32.EXE-2F9B64D1.pf
C:\WINDOWS\Prefetch\NDETECT.EXE-16E64095.pf
C:\WINDOWS\Prefetch\NETSTAT.EXE-2B2B4428.pf
C:\WINDOWS\Prefetch\NMAIN.EXE-2BA406E0.pf
C:\WINDOWS\Prefetch\NOTEPAD.EXE-336351A9.pf
C:\WINDOWS\Prefetch\NTOSBOOT-B00DFAAD.pf
C:\WINDOWS\Prefetch\NTVDM.EXE-1A10A423.pf
C:\WINDOWS\Prefetch\PARTIN.EXE-278BE0B0.pf
C:\WINDOWS\Prefetch\PARTINNT.EXE-189E221B.pf
C:\WINDOWS\Prefetch\PATCH.EXE-1DE617D3.pf
C:\WINDOWS\Prefetch\PM8FLASH.EXE-29A2E154.pf
C:\WINDOWS\Prefetch\PQBOOT32.EXE-004782FD.pf
C:\WINDOWS\Prefetch\PQPE.EXE-156FFA02.pf
C:\WINDOWS\Prefetch\PQPENT.EXE-31E964DB.pf
C:\WINDOWS\Prefetch\REGEDIT.EXE-1B606482.pf
C:\WINDOWS\Prefetch\REGSVR32.EXE-25EEFE2F.pf
C:\WINDOWS\Prefetch\RSTRUI.EXE-03C49A96.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-13E68835.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-147710F4.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-16B6E1C5.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-1831A4F3.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-1BC55A4F.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-1BC79741.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-268BFF96.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-3D381A1E.pf
C:\WINDOWS\Prefetch\RUNDLL32.EXE-451FC2C0.pf
C:\WINDOWS\Prefetch\SETUP.EXE-1F96B645.pf
C:\WINDOWS\Prefetch\SETUP.EXE-25947D5F.pf
C:\WINDOWS\Prefetch\SPYBOTSD.EXE-1344276B.pf
C:\WINDOWS\Prefetch\SVCHOST.EXE-3530F672.pf
C:\WINDOWS\Prefetch\SYSCLEAN.COM-03F5AA35.pf
C:\WINDOWS\Prefetch\SYSCLEAN.EXE-16B1DEFF.pf
C:\WINDOWS\Prefetch\S_T_I_N_G_E_R.EXE-20D66C56.pf
C:\WINDOWS\Prefetch\TASKMGR.EXE-20256C55.pf
C:\WINDOWS\Prefetch\TSC.BIN-1CE4A19A.pf
C:\WINDOWS\Prefetch\TSC.EXE-2B4C0858.pf
C:\WINDOWS\Prefetch\UNINS000.EXE-260D7493.pf
C:\WINDOWS\Prefetch\UNINS000.EXE-26B508AE.pf
C:\WINDOWS\Prefetch\UPHCLEAN.EXE-1B5600D5.pf
C:\WINDOWS\Prefetch\WINHLP32.EXE-2C18E975.pf
C:\WINDOWS\Prefetch\WINWORD.EXE-29F5CB89.pf
C:\WINDOWS\Prefetch\WMIPRVSE.EXE-28F301A9.pf
C:\WINDOWS\Prefetch\WORDPAD.EXE-24533991.pf
C:\WINDOWS\Prefetch\WSCNTFY.EXE-1B24F5EB.pf
C:\WINDOWS\Prefetch\WUAUCLT.EXE-399A8E72.pf
C:\WINDOWS\Prefetch\_IU14D2N.TMP-05E5CB2B.pf

LOG SAID ERROR OCCURRED WHILE SCANNING
C:\WINDOWS\system32\config\default
C:\WINDOWS\system32\config\default.LOG
C:\WINDOWS\system32\config\SAM
C:\WINDOWS\system32\config\SAM.LOG
C:\WINDOWS\system32\config\SECURITY
C:\WINDOWS\system32\config\SECURITY.LOG
C:\WINDOWS\system32\config\software
C:\WINDOWS\system32\config\software.LOG
C:\WINDOWS\system32\config\system
C:\WINDOWS\system32\config\system.LOG