home *** CD-ROM | disk | FTP | other *** search
- VIRDET is a program which was created at 3 a.m. after my Novell network was
- attacked by a Jerusalem-B virus. By some inspection of infected files and
- experimentation, I found that the presence of the virus left a signature in
- RAM. The program VIRDET detects the signature and returns with an Errorlevel
- of 1, if it finds it otherwise with 0.
-
- I replaced all occurences of LOGIN.EXE with LOGIN.BAT which runs VIRDET and
- will continue to run the normal login file, renamed to ~LOGIN.EXE, only if
- no virus is found.
-
- I have included the source so that you can be sure the program has not been
- doctored. You might use DEBUG to unassemble the .COM as a quick check that
- all is well.
-
- I found this very useful during the period of disinfection particularly to
- avoid the supervisor getting on from a machine with an infected NET3 or IPX
- file.
-
- Note this program will not detect the virus, if it is loaded above 512K. So
- if you have users who use memory managers to get NET3 or IPX above 640K this
- will not work.
-
- Richard Turnock
- 73417,156