Don't know if you fixed it yet. Also, I was wondering if winstat or winstart is the problem file. Reason is I found two different sets of info. on such a small variation of spelling. Anyways, this is what I found:
For winstat:
http://www.greatis.com/appdata/d/w/winstat.exe.htm
"winstat.exe
Steals passwords / ICQ trojan
Also known as: Backdoor.Kodorian, Win32/Kodorian, Troj/Kodoria
Displays a Firework and simultanlously starts in the backround. Sends the passwords encrypted via e-mail.
Kill the processes:
winstat.exe
kodorjan.exe
server.exe
Remove Files:
c:\manasi.yok
c:\winstat.exe
kodorjan.exe
okursan?yiedersinokumazsan?yibokyersin.txt
server.exe"
For winstart:
http://securityresponse.symantec.com...oor.optix.html
"Run LiveUpdate to make sure that you have the most recent virus definitions.
Start Norton AntiVirus (NAV), and make sure that NAV is configured to scan all files. For instructions on how to do this, read the document How to configure Norton AntiVirus to scan all files.
Run a full system scan.
Delete all files that are detected as Backdoor.Optix. If any files are detected as Backdoor.Optix, delete the Winstart.bat file before you restart the computer. For detailed information, read the section that follows."
Hope that helps.
Regards,
Aric