home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Simtel MSDOS 1992 September
/
Simtel20_Sept92.cdr
/
msdos
/
trojanpr
/
dirtyd9c.arc
/
VRECOVER.DD
< prev
next >
Wrap
Text File
|
1989-12-16
|
2KB
|
46 lines
------------------------------------------------------------------
| |
| VIRUS RECOVERY |
| |
------------------------------------------------------------------
| Issue #9: December 17, 1989 |
| Revision Stage: C |
| |
| Written by Eric Newhouse |
------------------------------------------------------------------
If you run a virus, first try to determine what the virus
program was and when you ran it.
Viruses are much more dangerous than trojan horses because
they can install themselves onto any part of your hard disk and
onto any floppies that have been accessed while the virus was
active. Therefore, barring a specific antidote program, the only
sure way to cure an infected computer is to perform a low level
format of the hard disk.
Someone has probably written an antidote for the virus you've
caught. Beseech BBS's and User Groups for help. If you are a
registered user of Virus Scan, McAfee Associates can probably save
you. If you are sure there is no antidote, then follow these
steps.
If you can determine that a group of files is definitely
uninfected, then backup those files before reformatting. This, of
course, entails some risk. After the format, place UNINFECTED
system files on the hard disk. This usually means formatting with
the DOS disks that are included with your system.
After disinfecting your hard disk, you must reformat EVERY
floppy that entered your computer while the virus was active.
This is the only sure way to disinfect your system. If you are
hit by a crude virus, then you may get away without reformatting
all of your floppies. However, the more sophisticated viruses
remain on disk even if you erase *.*.
If you have a backup, do not restore it unless you backed up
before your system became infected.
Viruses are deadly.