RMAP222@EUCLID.UCL.AC.UK (on GEC 4190 Rim-E at UCL) (03/02/90)
Since my earlier posting to this list (about a problem with SCAN reporting a virus in the memory, and not in the file) a number of things happened. First, we did some hacking of cleaned programs, and found out that the problem was indeed in cluster boundary when DOS writes a file to disk, which was subsequently confirmed by John McAfee, and when the file is scanned, SCAN can't find anything in the file. Now, I have a further question for the list. Correct me if I am wrong, but I belive that it shouldn't be to hard to calculate the cluster boundary, and write zeroes to the end of the last cluster which is occupied by the file, or, alternatively, write zeroes over the full length of the file, and then update the directory entry. That I belive, should cure such problems and confusion. Nino Margetic ******************************************************************************* *JANET: N.Margetic@uk.ac.ucl.euclid | Mr. Nino Margetic * *EARN/BITNET: N.Margetic%euclid.ucl.ac.uk@ukacrl | University College * *INTERNET: N.Margetic%euclid.ucl.ac.uk@cunyvm.cuny.edu| Dept. of Med. Physics * *Phone: [+ 044-1 | 01] 380-9846 | 11-20 Capper Street * *FAX: [+ 044-1 | 01] 380-9577 | London WC1E 6AJ * *******************************************************************************