ftp://ftp.symantec.com/AVDEFS/symantec_antivirus_corp/rapidrelease/sequence
inside this location go to the 3rd folder and download and run
symrapidreleasedefsv5i32.exe
Once you have run this run a scan in safe mode..
IF you are not able to download this file from the server then download it on a diffrent computer and bring it on this server using a flash disk..