Close all programs leaving only HijackThis running. Place a check against each of the following,
R3 - URLSearchHook: ???? - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\System32\ntos.exe,C:\WINDOWS\System32\idaw64.exe,
O3 - Toolbar: ???? - {406F94F0-504F-4A40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
O4 - HKLM\..\Run: [YLive.exe] C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe
O4 - HKLM\..\Run: [braviax] braviax.exe
O4 - HKCU\..\Run: [braviax] C:\WINDOWS\System32\braviax.exe
O4 - Global Startup: dzfp.exe
O20 - AppInit_DLLs: C:\WINDOWS\System32\cru629.dat
Click on Fix Checked when finished and exit HijackThis.
Reboot in safe mode, instructions here.
Some of these files my have hidden atributes.
Click Here Should you need instructions for Showing hidden files and folders in Windows.
Once in safe mode, Click start / then my computer / local disk then follow the process tree.
Or using Windows Explorer, locate the first file right click then select delete.
Delete the following file(s) listed in bold.
dzfp.exe(do a search for this one. It'll probably be in c:\windows or c:\windows\system32.)
C:\WINDOWS\System32\braviax.exe
C:\WINDOWS\System32\cru629.dat
Reboot and rescan with HiJackThis and post a new log here.
Also please describe how your computer behaves at the moment.