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Text File | 1989-09-28 | 5.7 KB | 131 lines | [TEXT/REZT] |
- RezTag - System Resource Verifier
- Version 1.0
- © 1989, by Raymond G. Marasa
-
-
- RezTag allows you to examine the resources that make up your System
- and Finder. It displays the various resource types, and the number and sizes
- of resources of that type. It also checks for viruses, and catches all those
- currently present at time of distribution. Additionally RezTag writes a very
- small file on your disk that contains a checksum of your System and Finder.
- If any changes have been made, RezTag will warn you. RezTag also scans
- itself for signs of virus infection and resource tampering.
-
- RezTag checks for:
-
- Scores
- nVIR (strains A & B)
- Hpat
- AIDS
- MEV#
- nFLU
- INIT 29
- ANTI
-
- RezTag correctly indentifies all known viruses by the distinct resources
- they leave behind. In some cases, the resource type may be legitimate.
- For example, Tempo 1.2 installs a INIT 29 resource, and a current virus
- oddly enough named INIT 29 installs its own resource of the same type.
- The aptl 128 resource installed by the Scores virus could be a legitimate
- AppleTalk driver device. So if RezTag flags you with a virus warning don't
- panic. One way to check for sure if your Mac is infected with INIT 29 is to
- insert a locked floppy in the drive. The INIT 29 virus will bring up the
- dialogue 'This disk needs minor repairs…'. To identify the Scores virus,
- open up your System Folder and examine the icons for the Note Pad and
- Scrapbook. If your Mac is infected with Scores, these files appear with
- generic document icons instead of the System icon, that your System and
- Finder share.
-
- I was hit by the nVIR virus a short while ago, and wrote RezTag to help
- me clean it out. Approximately 10% of all Mac users have been hit by a
- virus. So grab a copy of Vaccine and place it on your hard disk right away.
-
- Vaccine, Gatekeeper, and S.A.M. all provide virus protection to keep
- viruses from getting on to your hard disk. Both Vaccine and Gatekeeper are
- free. Vaccine is easy for non-programmers to use. Simply drag the INIT file
- into your System Folder and reboot. If you program, Vaccine will drive you
- nuts with its alerts going off on every compile. Each time you try to save a
- code resource it thinks you are intoducing a virus into the System. It has
- controls to disable these alerts if you are an MPW programmer. But if you a
- development system designed for the rest of us, Gatekeeper is a better
- choice. Gatekeeper allows you to save a list of exceptions, programs that
- are allowed to add code resources, etc. If you have the money, S.A.M. from
- Symantec Utilities is your best bet. It not only has all the features of
- Gatekeeper, but it can also scan any floppy disk you insert, and it scans
- floppy disks FAST. There are a couple of ways to introduce a virus into your
- Mac, and straight off a floppy disk is the most obvious. Therefore I can't
- recommend S.A.M. highly enough. It also contains a full set of tools for
- removing viruses. Disinfectant is a free program that also will remove
- viruses from your system. It is a good solid product not to be without.
-
- Store these tools on a locked floppy complete with a stripped down
- System file. If you get a virus, chances are you'll never clean it from tools
- kept on the hard drive or an unlocked floppy disk. In no time they'll have the
- virus too.
-
- Viruses can be caught only two ways:
-
- 1. They are introduced to your hard drive from an infected floppy disk.
-
- 2. They are downloaded to your hard drive in an infected form via modem.
-
- Virus Prevention
-
- To protect your hard disk from a virus follow the 5 steps to safe
- computing:
-
- 1. Backup your hard disk religously, and always scan your drive for viruses
- before you back up. Otherwise you might back up infected files.
-
- 2. When you buy a program from the store, lock the floppy, back it up, and
- store the original safely. Never run an original program disk on your Mac.
-
- 3. Install a virus detection program like Vaccine, Gatekeeper or S.A.M.
-
- 4. Scan your hard drive periodically with a program like RezTag,
- Disifectant, or S.A.M.
-
- 5. Be suspicious of new software. Don't move a new program to your hard
- drive until you're sure its safe.
-
- RezTag
-
- Place RezTag anywhere on your hard drive or run it from a floppy, and
- then run it to check the active System. RezTag looks for anything out of
- the ordinary in the System, Finder, or RezTag itself. Viruses usually
- infect the System or Finder first in their spread through your hard drive.
- RezTag can alert you and it will attempt to identify the virus. RezTag can
- identify all known viruses.
-
- Using RezTag
-
- Select Check System from the File menu. RezTag will display the screen
- elements shown below:
-
-
- 1. XXXX 1 means that there is 1 resources on my hard drive of type XXXX.
-
- 2. The first column is a running counter of the number of resources.
-
- 3. The second column is the four charcter resource type.
-
- 4. The third column shows the resource size in bytes.
-
- 5. The fourth column is a running total of the resource types.
-
- 6. The fifth column counts the number of resources of each type.
-
- There are four displays showing the total number of distinct resource types
- on your System, the total number of resources, the System signature, and
- whether or not a virus has been detected.
-
- The final display is a progress meter that shows the number of distinct
- resource types read so far.
-
- RezTag © 1989, by Raymond G. Marasa
- RezTag is not a public domain program,
- but may be freely used by any Mac owner.
-
- RezTag may not be distributed for profit. RezTag will not be distributed on
- disk by itself or along with any other shareware or public domain programs
- for more than the cost of the disk itself.