FIREFLY - More than A Smart Virus

Firefly is an encrypted, memory resident virus which infects
.COM files on load.  It incorporates code from Proto-T, 
LokJaw and YB-X viruses and, when in memory, attacks a large election of anti-virus programs as they are executed.  Anti-virus programs identified by Firefly's execute/load handler are deleted.
Firefly incorporates simple code from previous issues of the newsletter signed to de-install generic VSAFE resident virus activity
filters designed for Microsoft by Central Point Software.

Anti-Debugger Techniques

-THE-MASTER-HIDES-BEHIND-THE-MASK-

        Ok, now the AV can not even get your virus to infect their bait
files, and if they do finally manage,  they will have great problems in
getting a complete,  accurate view of what they are dealing with.

--By Sibidharan

KEYSPY : Password Capturing Made Easy

A little something I cooked up when I was bored one afternoon ...

KEYSPY is a program which is intended to capture keystrokes when a password-protected or login program is run and save them in a hidden file in the root directory. This will enable the resourceful user to find plenty of login names and passwords.

By Sibidharan v 0.90

BACKDOORS on DOS

The information in this article concerns the backdoors in MS-DOS and BIOS that can be used and abused by a virus for it's own ends!  Most of them concern the Int21h DOS services interrupt and Int13h Disk services.