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- 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.
-
-