Following my update to Windows SP2, I did a scan for virus's, and Norton said I was clean! I then did a scan with Trend Micro/PCcillin? and up came two problems! I had HTML ZEROLIN.B and so had to do a delete of them as they could not be repaired....

How come Trend Micro finds such things and Norton doesn't? Any ideas folks?
Especially symantec!

Following my update to Windows SP2, I did a scan for virus's, and Norton said I was clean! I then did a scan with Trend Micro/PCcillin? and up came two problems! I had HTML ZEROLIN.B and so had to do a delete of them as they could not be repaired....

How come Trend Micro finds such things and Norton doesn't? Any ideas folks?
Especially symantec!

i reply cause i,ve had a similar situation. i posted this ? in another forum long ago:

I've run Norton's for nearly 2 years & never had a virus according to them. I do a full scan every week. Today, just out of curiosity i ran both the Bit Scan program & also Trend Micro & they both found the same thing:

C:\WINNT\system32\MDM.EXE=>(Upx) infected: Trojan.HideWindows.A
C:\WINNT\system32\MDM.EXE=>(Upx) unable to disinfect
C:\WINNT\system32\ocxdll.exe=>(ZIP Sfx o)=>mdm.exe=>(Upx) infected: Trojan.HideWindows.A
C:\WINNT\system32\ocxdll.exe=>(ZIP Sfx o)=>taskmngr.exe infected: Backdoor.IRC.Mard.A

They say they cant be 'cleaned'. Can they be deleted? Is it important? Why doesnt Norton find this?

__________________________
i was linked here: http://securityresponse.symantec.com...ircbounce.html
i know this is a different trojan but this stands out re: Norton:

"This Trojan consists of the following programs, all of which are detected as Trojan.IrcBounce by Symantec antivirus products:

Dll32.hlp
Dll32nt.hlp
Xvpll.hlp
Httpsearch.ini
Nt32.ini
Gg.bat
Seced.bat
Tftp8675
V.exe
Mt.exe

This Trojan also uses the following clean programs, which are not detected by Symantec antivirus products:
Kill.exe
Mdm.exe
Mdm.scr
Ncp.exe
Psexec.exe
Taskmngr.exe"
___________________

Yet Trend Micro DID find them.