[comp.sys.amiga] ByteWarrior Virus

frambo::schabacker (Tim, posting for <schabacker@frambo.dec.com>) (09/06/88)

[I really hate these stupid line-eater jok

Hi folks,

as a public service, here's what the (dis)assembler department of the
Software Brewery (Hi Heiko) found out about the already mentioned 
ByteWarrior virus.
The virus is a related form of the ByteBandit, that is it makes
itself resident via a KickTag entry and patches an internal function.
BUT THIS VIRUS ATTACHES ITSELF IN FRONT OF THE ExecBase DoIO function
and though spreads itself EVERYTIME an uninfected, write-enabled disk
is inserted, written to, etc.!
This is the most virulent beast to date. 
But obviously virus authors are generally even more brain-dead than
the usual bunch of crackers & pirates, 'cause the idiot who did this
scumware makes DIRECT jumps to certain KickStart routines...
So if you use a 1.3 KS, an infected disk will happily crash every time
you try to boot it...
But if there is enough interest out there, we could fix it...
:-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) 
(-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: (-: 
(Hey, twas a joke, OK?)

As already mentioned on the net, the virus can be identified by the
string DASA0.2 (where "." is an unprintable character) at offset
$C4 (196 decimal) in block 0.

The virus claims to be a virus killer, and what can I tell you, it
really kills SCA and ByteBandits in memory and VERY effectivly their
respective bootblocks. 1/2 :-)

Of course it gets detected and removed by AntiVirus IV, Heiko's virus
detergent. (Sorry for the commercial plug :-), the devil made me do it)

The only purpose of this beast is to spread itself, but since it's
that "effective", this is really bad enough...

See ya,
-	<CB>

P.S. KJohn, hey, KJohn, could you please send me an email, since I
don't seem to get through to you...
--  _  _
 / /  | \ \  <CB> aka Christian Balzer  - The Software Brewery -
< <   |-<  > decwrl!frambo.dec.com!schabacker OR schabacker@frambo.dec.com
 \ \_ |_/ /  CIS: 71001,210 (be brief!), Phone: +49 6150 4151
------------ Snail: Im Wingertsberg 45, D-6108 Weiterstadt, F.R.G.
"Signature shrunk to conserve bandwidth"

eephdjh@pyr.gatech.EDU (Haleblian, Jim) (09/07/88)

Steve just posted VirusX2.0 on PeopleLink.  The viruses currently listed as
detected and eliminated are:

	SCA, Byte Bandit, North Star, Byte Warrior, Revenge, Obelisk.

I would be more than happy to post this or give it to someone who can make
it available for anonymous ftp if *somebody* lets me know who the proper
person/group of persons is to send it to!  harv? bob? leo? carolyn? matt?
Somebody give me a clue!