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WHATSNEW.23
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1992-05-22
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What's New In VIRx Version 2.3
==============================
Date: 05/22/92
1. This release of VIRx detects 73 new viruses, bringing the total
to 925 total strings.
2. VIRx now detects all files encrypted with the "Mutating Engine"
attributed to the Dark Avenger that are not already destroyed by the
Engine's attempts to encrypt them (and most of those, as well).
If you find executable programs with MtE encryption that we miss,
please advise us at Microcom. As always, the BBS number is:
(919) 419-1602 v.32bis.
We can be reached through the Internet at trent@rock.concert.net,
and through FIDONet NetMail at "Glenn Jordan@1:3641/1.201".
3. Due to an intensive reworking of the code, we have sped up the
scanner's raw speed by yet another 20%.
4. VIRx v2.3 will start to warn users it is getting dated in July.
-------------------------------------------------------------------------
VIRx 2.2 Revisions
==============================
Date: 04/14/92
1. This release of VIRx detects 126 new viruses, bringing the total to 852
total strings. Among the new viruses included are "1024-SBC" and "Peach".
2. There are no active disinfection routines included in this release.
3. This version catches attempts to exit VIRx scanning with CTRL-C, and
requests confirmation. If the user confirms the exit request, VIRx will
clean our virus signature database out of memory in order to further reduce
the possibility of "Virus Active In Memory" false positives.
4. A bug was discovered in scanning files of exactly 1024 bytes that could
under improbable conditions have caused false positives. The bug was
eradicated.
-------------------------------------------------------------------------
VIRx 2.1 Revisions
==============================
Date: 03/09/92
1. This release of VIRx detects 57 new viruses, bringing the total
to 726 total strings.
2. Included in this release is the "MALTESE AMOEBA Virus" disinfector
from our commercial product, Virex for the PC. The Maltese Amoeba
infects files, variably encrypting itself to try to hide from virus
scanners. On March 15th its destructive code will activate, overwriting
a substantial portion of your hard disk. At that time, it also replaces
the disk's Master Boot Record with code to display a poem (about a
grain of sand) on subsequent reboot attempts -- such reboot attempts will
always fail once the virus has triggered on March 15th. This virus is
believed to be fairly widely distributed in Europe. The disinfector in
this release of VIRx is active until March 20.
3. This release of VIRx no longer includes the Michelangelo Virus
disinfector; this disinfector and many more are always included in
VPCScan, a portion of our commercial product, Virex for the PC.
4. Improved V2P6 scanning has eliminated all known false positives for
V2P6, including those from older programs, such as MEM.COM and
POPDROP.COM.
5. To save your printer paper, some of the earlier "WHATSNEW" entries
have been removed from this document and can be found in the file called
"OLD_NEWS.TXT", also in the archive. We encourage you to read this
file when you have a chance.
-------------------------------------------------------------------------
VIRx 2.0 Revisions
==============================
Date: 02/07/92
1. This version of VIRx contains the Disinfector for the MICHELANGELO
Virus from our commercial product. The MICHELANGELO virus infects
hard drive Master Boot Records and floppy boot sectors very much like the
STONED virus. Unlike the STONED virus, MICHELANGELO contains code which
activates on March 6 and, by overwriting critical sections of the infected
hard drive, destroys the information on the disk. VIRx will detect AND
REMOVE this virus if used before March 6, 1992. After that date, VIRx will
still detect the virus, if present, but removal will no longer be offered.
2. VIRx detects 20 newly discovered viruses, bringing the total to 669.
-------------------------------------------------------------------------
[Earlier Revision History Found In File "OLD_NEWS.TXT"]