[comp.virus] News from Bulgaria

frisk@rhi.hi.is (Fridrik Skulason) (10/31/90)

I just received a package of the latest collection of Bulgarian viruses
from Vesselin Bontchev.  Some of the viruses were previously known, but
quite a few are new.

It included the following viruses:

	1024 (2 variants)
	1226
	2100
	Amstrad-852
	Anthrax
	Anti-Pascal (5 variants)
	Dir
	Evil
	Kamikazi
	MG
	Proud
	Tiny family (10 variants)
	Trackswap
	VFSI

So, as you can see, the Bulgarians are still quite active - the total of
Bulgarian virus variants is now well over 100.

Some notes:

	The Bulgarian "Tiny Family" is not related to the Danish "Tiny"
	virus at all.  The Bulgarians may have seen that virus as a
	challenge to write an even smaller virus, which they did - the
	smallest virus is 134 byte long.

	Evil, Proud, 1226 and Phoenix were all made available in three
	different ways:

	A standard infected .COM file,
	A "-M" file.
	A "-D" file.

	This should not be interpreted as if there are three different
	variants of each virus.  The "-M" file is just a sample .COM file
	infected with multiple copies of the virus, as it is occasionally
	unable to recognize existing infections.

	The "-D" file is just a memory dump of an infected .COM file,
	created by Vesselin Bontchev, after the virus has decrypted itself
	in memory.  This file will replicate as well, as the virus contains
	code to check if it is already encrypted or not.

- -frisk

- --
Fridrik Skulason      University of Iceland  |
Technical Editor of the Virus Bulletin (UK)  |  Reserved for future expansion
E-Mail: frisk@rhi.hi.is    Fax: 354-1-28801  |