home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Current Shareware 1994 January
/
SHAR194.ISO
/
virus
/
virx291.zip
/
WHATSNEW.291
< prev
Wrap
Text File
|
1993-10-01
|
8KB
|
157 lines
What's New In VIRx Version 2.91
===============================
Date: 10/01/93
1. There has been a net increase of 196 virus detectors in version 2.91,
bringing the total to 1720 detectors.
2. VPCScan can now detect viruses such as Satin_Bug and FruitFly, that
use their form of multi-level encryption.
3. VPCScan will now make use of an existing INOC file to do generic file
repair now FIRST, and by default, before attempting a virus-specific repair.
4. The VIREX.COM resident integrity monitor and known virus detector has
been re-written. The result is even smaller (528 bytes resident !),
significantly faster, more interactive when a problem is found and much
less noticable when all is well. If you have previously avoided resident
security monitors because of their inconvenience or performance penalties,
you should give this VIREX.COM a try.
5. A new menu-driven Install program is included in this version, replacing
the batch installer provided in previous releases.
6. This version of VPCScan will detect viruses encrypted with "NED", yet
another encryption device being distributed via virus exchange BBS's.
7. The product has new disinfectors specific for the "Green Catepillar"
and the "Butterflies" families of viruses.
--------------------------------------------------------------------------
VIRx Version 2.9 Revisions
==========================
Date: 07/07/93
1. There has been a net increase of 105 virus detectors in version 2.9,
bringing the total to 1524 detectors.
2. VPCScan can now detect viruses, such as Civil War II and Girafe and
any others as they are produced, encrypted with the so-called "Trident
Polymorphic Engine".
3. New disinfectors were added for over 40 boot sector viruses, so that
Virex users can conveniently remove these viruses from their drives without
having to use FDisk or SYS or our generic repair via the CRITICAL.VRX file.
The new disinfectors include ones for FORM, FLIP, most STONED varients and
the Parity Boot versions so common recently in the Netherlands.
4. Our detectors for the XBoot (TrackSwap) and Print Screen Boot viruses
had to be altered to avoid detecting the unencrypted virus code pieces
Central Point's VSafe/Bootsafe places in system memory. There may be
additional false positives due this practice if it is continued in future
releases of VSafe/Bootsafe. We have not yet figured out a way to test
against currently unreleased versions of these products !
5. Please send virus samples or other suspicious files either to our BBS
at (919) 419-1602 or to our corporate offices at:
Datawatch Corporation
3700 Lyckan Pkway
Durham, NC 27707
USA
Comments and suggestions are always welcome as well.
--------------------------------------------------------------------------
VIRx Version 2.8 Revisions
==========================
Date: 05/17/93
1. There has been a net increase of 46 virus detectors in version 2.8,
bringing the total to 1419 detectors.
2. In preparation for this version all available boot sector virus
samples were re-analyzed, with the intent of making VIREX for the PC's
detection of this type of virus more comprehensive and accurate.
In the process, the names of the viruses were changed to match the
standard names as recommended by the University of Hamburg's Virus
Testing Center.
3. We altered VPCScan to make it NOT detect the un-encrypted virus
signatures that the Vsafe.com program, distributed by Microsoft Corp.
in MS-DOS 6.0, places into memory in most Vsafe load configurations.
If you experience difficulties with reports of viruses being found in
memory, please consider using Virex.com INSTEAD of Vsafe. Virex.com
does not leave virus signatures in memory, and so is compatible with
anti-virus products from other vendors.
4. VPCScan will now alert your Novell network console if, while logged
into the network, a user detects a virus during a scan. If the version
of Novell Netware is less than 3.x, an appropriate entry is also written
to the SYS:SYSTEM\NET$LOG.MSG system log file. This feature can be
turned off with the new "-!N" command line option. (VPCSCAN -!N)
--------------------------------------------------------------------------
VIRx Version 2.7 Revisions
==========================
Date: 03/29/93
1. MANY new features and a change from freeware. Read the VIREXPC.DOC
file for the full details after perusing the summary below.
2. This release of the archive contains the full VPCScan virus detection
and repair utility included in our commercial product, Virex for the PC.
This replaces the freeware scanner VIRx. It detects an additional 75 new
viruses, bringing the total to 1373 signatures.
More significantly, through careful use of the generic integrity
checking features of VPCScan, never available with VIRx, you can detect
viruses previously unknown through the recognition of unexpected changes
in your registered executables.
3. Another popular program from our commercial package is included in
this archive - VIREX.COM. This tiny resident utility monitors the loading
and execution of everything you run from the DOS command line, and also
from within a Windows DOS session, and alerts you to any changes in your
executables before letting the program run. Unregistered programs or
altered programs are also scanned for known viruses. All this is done
so quickly that on a 386SX16 or faster system you will find it difficult
to tell whether VIREX.COM is loaded or not, unless you attempt to run an
infected program. You may be amazed to find that VIREX.COM is ONLY USING
704 bytes, total. Worth a try !
4. If you follow the directions in VIREXPC.DOC on using the generic
Inoculation features of VPCScan, you will be able to repair virus
infections and/or damage to your programs, Master Boot Record, Partition
Boot Record(s), and CMOS settings. Note that if the damage done to a
program file was so extensive that VPCScan cannot generically repair it
from the Inoculation record, VPCScan will notify you rather than to
return a damaged version.
Certain specific common viruses can also be repaired even if no
Inoculation record is found for the infected file.
5. This package is no longer free, but is instead a fully functional
evaluation copy. You will notice that it beeps at you and alerts you to
its unregistered status if it cannot find a valid registration key on your
system. At the end of a VPCScan run, you will be shown a list of vendors
from any of whom you can order Virex for the PC. We recommend that you
purchase directly from one of our retail distributors and send in your
registration card to us. You may also purchase from Datawatch at the
suggested list price of $49.95.
Organizations with 25 or more computers should contact us directly
for attractively priced and professionally handled site-licenses.
BBS sysops should contact us to obtain a complimentary Sysop Key.
6. The log-file handling has been re-written to allow the logging of
extremely large numbers of viruses.
7. The whole program set has been re-written to make it faster and more
efficient.