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- Continuing with recent report off the Internet on the Mutating Engine:
- Part 4/4
- *************************************
- 22 Jun 92
-
- Mutation Engine Report
- Copyright (c) 1992 by VDS Advanced Research Group
- All Rights Reserved
-
- V. A Simple Message
-
- It is dangerous to assume that scanning is adequate since
- there are some products that can detect MtE-based viruses 100% of
- the time. We identified at least two ways to make MtE less
- predictable. Of course, such information will not be disseminated.
- However, considering the availability of MtE to the hackers all
- around the world, and the "glory" Dark Avenger will enjoy due to
- media hype, it's only a matter of time such improvements will be
- discovered by irresponsible individuals. Besides, this may start a
- new trend among virus writers to create things like MtE. Keeping up
- with new virus signatures was hard enough (though manageable), but
- keeping up with many mutation engines is not going to be trivial.
- Unfortunately, locking up these "mutant engineers" is not a
- practical solution, and not even legally possible in many parts of
- the world.
- The message is clear. The first line of defense against
- viruses is NOT using scanners. Although they proved to be very
- useful, you are highly encouraged to consider other approaches such
- as integrity checkers as a first line of defense. Even the less
- sophisticated integrity checkers have a better chance to catch
- mutating viruses, long before their developers get a chance to
- analyze the virus samples. The reason is that viruses have a
- tendency to modify existing code to propagate in most cases. Their
- spread can be controlled using a non-virus-specific solution that
- concentrates on the main characteristic of most viruses. Such an
- approach is not only more cost-effective but also more secure. If
- your company still relies on a virus scanner to protect its PC-
- based computing resources against viruses, you are walking on thin
- ice.
-
- - -------------------------------------------------------------
- Regards,
-
- Tarkan Yetiser
- VDS Advanced Research Group P.O. Box 9393
- (410) 247-7117 Baltimore, MD 21228
- e-mail: tyetiser@ssw02.ab.umd.edu
-
-
- END OF REPORT
- *************************************
-
- I'll keep my eye open for more if you found that interesting.
-
- -- Gene Splicer
-
- P.S. By the way, has anybody managed to disassemble a recompilable version
- of the Whale? I would like to take a closer look at its internals.
-