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- 24. How can I protect myself from viruses and such?
-
- This FAQ answer was written by Theora:
- The most common viruses are boot sector infectors. You can help protect
- yourself against those by write protecting all disks which you do not need
- write access to. Definitely keep a set of write protected floppy system
- disks. If you get a virus, it will make things much simpler. And, they are
- good for coasters. Only kidding.
- Scan all incoming files with a recent copy of a good virus scanner. Among
- the best are F-Prot, Dr. Solomon's Anti-virus Toolkit, and Thunderbyte
- Anti-Virus. AVP is also a good proggie. Using more than one scanner could
- be helpful. You may get those one or two viruses that the other guy
- happened to miss this month.
- New viruses come out at the rate of about 8 per day now. NO scanner can
- keep up with them all, but the four mentioned here do the best job of
- keeping current. Any _good_ scanner will detect the majority of common
- viruses. No virus scanner will detect all viruses.
- Right now there are about 5600 known viruses. New ones are written all the
- time. If you use a scanner for virus detection, you need to make sure you
- get frequent updates. If you rely on behaviour blockers, you should know
- that such programs can be bypassed easily by a technique known as
- tunnelling.
- You may want to use integrity checkers as well as scanners. Keep in mind
- that while these can supply added protection, they are not foolproof.
- You may want to use a particular kind of scanner, called resident scanners.
- Those are programs which stay resident in the computer memory and
- constantly monitor program execution (and sometimes even access to the
- files containing programs). If you try to execute a program, the resident
- scanner receives control and scans it first for known viruses. Only if no
- such viruses are found, the program is allowed to execute.
- Most virus scanners will not protect you against many kinds of trojans, any
- sort of logic bombs, or worms. Theoretically, they _could_ protect you
- against logic bombs and/or worms, by addition of scanning strings; however,
- this is rarely done.
- The best, actually only way, to protect yourself is to know what you have
- on your system and make sure what you have there is authorised by you. Make
- freqent backups of all important files. Keep your DOS system files write
- protected. Write protect all disks that you do not need to write to. If you
- do get a virus, don't panic. Call the support department of the company who
- supplies your anti-virus product if you aren't sure of what you are doing.
- If the company you got your anti-virus software from does not have a good
- technical support department, change companies.
- The best way to make sure viruses are not spread is not to spread them.
- Some people do this intentionally. We discourage this. Viruses aren't cool.
-
- 25. Where can I get more information about viruses?
-
- This FAQ answer was written by Theora:
- Assembly lanaguage programming books illustrate the (boring) aspect of
- replication and have for a long time. The most exciting/interesting thing
- about viruses is all the controversy around them. Free speech, legality,
- and cute payloads are a lot more interesting than "find first, find next"
- calls. You can get information about the technical aspects of viruses, as
- well as help if you should happen to get a virus, from the virus-l FAQ,
- posted on comp. virus every so often. You can also pick up on the various
- debates there. There are alt.virus type newsgroups, but the level of
- technical expertise is minimal, and so far at least there has not been a
- lot of real "help" for people who want to get -rid- of a virus.
- There are a lot of virus experts. To become one, just call yourself one.
- Only Kidding. Understanding viruses involves understanding programming,
- operating systems, and their interaction. Understanding all of the 'Cult of
- Virus' business requires a lot of discernment. There are a number of good
- papers available on viruses, and the Cult of Virus; you can get information
- on them from just about anyone listed in the virus-l FAQ. The FTP site
- ftp.informatik.uni-hamburg.de is a pretty reliable site for proggies and
- text.
-