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- @4 THIS TEXT SAMPLE TAKEN FROM ABSOLUTE BEGINNERS GUIDE TO WORKBENCH 3
- WHICH IS AVAILABLE FREE FROM F1, SEE FREEBIES ARTICLE@6
-
- SOME FACTS ABOUT VIRI
- @3 ------------------@6
- A virus is just a small program, written by a bored/nasty programmer
- and meant to cause us users a lot of hassle and sometimes money.
- There are hundreds of different "strains" of viri on the Amiga.
-
- Basically there are only two types of virus prevalent on the Amiga,
- Link and Boot. I will cover Link viri in a later volume, but here I will
- tell you about Boot viri as they are the most common of the two.
-
- Some viri can format your disk, some wipe the odd file, some just flash up
- an insulting message, one even reverses your mouse controls!
- So, how does a virus get into your system and onto your disks?
-
-
-
-
- #7CLICK ON 'NEXT' TO CONTINUE
-
-
-
- A little story:@4
- Fred Bloggs gets a new Amiga and asks his friend Joe Brown if he has any
- P.D disks he can make a copy of, unknowingly Joe gives Fred an
- infected disk he had previously got off another friend. Anyway, Fred runs
- the disk and the virus loads in from the infected disk and copies itself
- into Freds Amigas memory. The virus copies itself into a special
- part of memory that only gets cleared when the Amiga is turn off by the
- power pack and not turned back on for at least 20 seconds.
- So a copy of the virus is sitting in memory, and the original virus is
- still on the disk. Fred finishes playing the game and decides to load
- another disk, he flicks off the power supply for a second or two inserts
- the new (clean) disk and turns the power back on.
- The virus has survived as the Amiga operating system didn't have long
- enough to clear all of its memory properly. Fred's game is loading, the
- virus is monitoring freds Amiga for any disk activity, the virus checks to
- see if the disk is write protected or not, it isn't,
- Great! says the virus and copies itself onto the new disk. After copying
- itself onto 20 different disks the virus activates itself proper and lets
- fred know of its presence, the virus prints a nasty message on the screen
- and wiped the disk in freds drive, the disk just happened to be an
- expensive application fred bought last week. This will happen when each
- copy of the virus has copied itself another 20 times. Can you see how
- within a few days all of Freds disks were infected? If Fred had taken a
- few simple precautions none of this would of happened.
- @6
- * Always keep your floppy disks write protected at all times, only write
- enable them when absolutely necessary.
- @1
- * Use an up to date virus checker on any new disk you get before running
- the disk proper.
-
-
- #7WARNING:@2
- If you virus check a commercial game be careful as most commercial games
- (and some P.D games and demos) use a custom loader on the bootblock which
- most virus checkers will detect as Non-standard, unless the virus checker
- says the disk has a virus and gives you the name of the virus don't try
- and kill it. As a general rule, if a virus checker says the disk has a
- non standard boot block then 99.9% of the time it will be harmless or will
- be a programmers boot loader, if it is a boot loader and you kill it the
- disk will be rendered useless. This only applies if you use an up to date
- virus checker.
- @5
- * When resetting the Amiga to use another program make sure you turn off
- from the power pack and wait at least 20-30 seconds. The down side of
- this is the Amiga's circuitry is at it's most vunerable to electrical
- surges when switch on from the mains.
- @3
- Beginners should NOT use the Amiga/Amiga/ctrl keys to do a warm reset.
- UNLESS you WRITE PROTECT all of your disks.
- @4
- If you think you have a virus on a disk and are not sure what to do, send
- me the disk with a cover note and a SAE and I will check it out for you.
- No SAE no reply.
- @1
- **************************************************************************
- @5Once again I cannot stress how important it is to keep your disks write
- protected, if you do a virus will NEVER spread into your collection it will
- stay on its original disk and sit in memory. W A I T I N G for you to make
- a mistake like inserting an unprotected disk..@1
- **************************************************************************
-
-
- @6 THIS TEXT SAMPLE TAKEN FROM ABSOLUTE BEGINNERS GUIDE TO WORKBENCH 3
- WHICH IS AVAILABLE FREE FROM F1, SEE FREEBIES ARTICLE@2
-
- #7NOW CLICK ON THE 'INDEX' BUTTON
-
-