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WHATSNEW.510
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1993-03-05
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Update report of Thunderbyte Anti-Virus utilities.
Prefixes:
'-' indicates a change that does not require user attention.
'->' indicates a modification that requires user attention, such as a
change in program invocation, etc.
5.10
----
Major scanner update!
TbScan:
- New signature file! TbScan now has its own signature file, which
will be updated at least once every month! The new signature has
many new internal options to find viruses more reliable.
The good old VirScan.Dat file and the .AVR modules will not be
used anymore.
- Most of the signatures in this release of TbScan are converted
signatures from the VirScan.Dat. About 60 signatures have been
removed because they were duplicated or not necessary anymore
since the more flexible new wildcard format enables us to make
"combination" signatures. About 60 new signatures have been added.
The old AVR files are also converted to the new TbScan.Sig file.
The Irish.AVR module was not needed anymore since the virus
can be found with a signature.
- TbScan is now able to bypass every stealth virus. TbScan now uses
its own internal file system to access files. DOS itself and all
resident software and viruses are bypassed by this process.
- TbScan is now faster than ever! The approximate scanning speed
has been increased by 20-50% !!! (the exact percentage depends
on your system configuration). This speed improvement was
necessary because another scanner showed up with a higher speed
than TbScan... The speed improvement is achieved by the new
internal file system of TbScan, the new highly optimized and
preprocessed signature file, and the lack of a scrolling files
window. Although the speed improvement might seem sensational,
there is absolutely no decrease of reliability.
- Screen lay-out has been changed. On 386/486 machines TbScan became
so fast that a scrolling files window was not even readable. The
new paging screen output improves the readability slightly.
- The scanning algorithm "browsing" has been removed. "Scanning" is
now used where previously "browsing" would have been used. The
new signature file causes the gain of the "browsing" algorithm
to be minimal.
- The internal disk cacher has been removed. It does not serve any
functionality anymore since TbScan now has a built-in operating
system and doesn't use DOS at all.
- Full language support! All important texts are now contained in
a file named TbScan.Lng and can be translated if desired.
-> To run TbScan with complete functionality, you only need the
following files:
TbScan.Exe, TbScan.Sig, TbScan.Lng
The following files are now obsolete and should be deleted:
TbScan.Msg, TbScan.Hlp, VirScan.Dat AddnSigs.Dat, *.AVR
The TbScan software now requires less diskspace!
-> Several options are removed!
"valid" It is no longer possible to modify the signature file.
"mutant" Mutant matching is now built-in in the signatures.
"direct" TbScan will use direct access automatically.
"sigfile" The signature file will be read automatically.
"sector" The new signatures contain entry-point related
wildcards. These signatures can not be searched for
in random data.
TbDisk:
- Option "win32" now works again.