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Date: Sun, 03 Jun 2007 10:36:06 +0200
From: Piotr Bania <bania.piotr@...il.com>
To: dailydave@...ts.immunitysec.com, full-disclosure@...ts.grok.org.uk,
bugtraq@...urityfocus.com
Subject: Disinfectors for the calculator virus (ti89.Gaara)
Hey,
For those who are interrested, i made two types of Gaara (the calculator
virus) disinfectors. The first one patches the virus body, which causes
to return the control to the host just when the EPO injection travels
the control to the virus. So the virus will not get executed at all.
And the second one is trying to find an EPO injection by searching for
BRA opcodes, and testing them for suitable conditions.
Here are the codes:
Dis1:
Source:
http://piotrbania.com/all/ti89/dis1.c
Binary:
http://piotrbania.com/all/ti89/dis1.89z
Dis2:
Source:
http://piotrbania.com/all/ti89/dis2.c
Binary:
http://piotrbania.com/all/ti89/dis2.89z
i hope you will find them somehow interresting.
best regards,
pb
--
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Piotr Bania - <bania.piotr@...il.com> - 0xCD, 0x19
Fingerprint: 413E 51C7 912E 3D4E A62A BFA4 1FF6 689F BE43 AC33
http://www.piotrbania.com - Key ID: 0xBE43AC33
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