Fighting Viruses

| GENERIC ANTIVIRAL PROGRAM flags activities--such as the alteration of critical sites in RAM or particular files on disk--that are likely to arise from a virus in action. Preventing these illicit acts will not eliminate the virus but can stop it from infecting additional programs or interfering with the computer's normal operation.

| SIGNATURE SCANNER searches a user's disks looking for fragments of program code that appear in known viruses.

| ANTIVIRAL SNAPSHOTS capture mathematical "fingerprints" of crucial programs and data. Subsequent changes strongly suggest viral infection. Advanced algorithms can use the original fingerprints to recover a pristine program from the virus-altered version.