Request for info: "ANSI bombs" in text files (PC)

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1 total messages Started by Larry Bennett Tue, 19 Jan 1993 18:16

#4714

Author: Larry Bennett
Date: Tue, 19 Jan 1993 18:16

41 lines
2260 bytes

The documentation for PKZIP v2.04c contains the following item.

It sounds awful strange to me.  If I type out a text file that contains
one of these "bombs" do I face the risk of introducing a virus into
my system?

If anyone can give me some insight into this, I would appreciate it if you
could respond via email.  Thanks.

==============================================================================

PKSFANSI.COM
 
PKSFANSI (PK Safe ANSI) is a Terminate and Stay Resident program that disables
ANSI Keyboard Key Reassignments, thereby preventing "ANSI bombs" embedded in
any text file (such as README files) or output by any program.
 
Normally, ANSI sequences that redefine the keyboard could be hidden inside ANY
text file or program, and could be executed completely unnoticed until it is
too late.  PKSFANSI intercepts calls to the ANSI.SYS or other ANSI device
drivers, and filters out any keyboard reassignments, while allowing other ANSI
sequences through unaltered.
 
If a keyboard key reassignment is attempted, PKSFANSI will intercept the
sequence and discard it.  PKSFANSI also will BEEP to alert you that a
reassignment was attempted.
 
PKSFANSI requires less than 1k bytes resident RAM, and should work with any
ANSI driver, such as the standard ANSI.SYS driver, NANSI, ZANSI, DVANSI, etc.
Note that if you use a memory resident ANSI driver, such as the DESQview
DVANSI.COM driver, PKSFANSI should be loaded after the ANSI driver is loaded.
 

==============================================================================

- -- 
[~~~~~~~~~~~~~~~~~~~~~~~~~_   /| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~]
|   Larry Bennett         \'o.O'     usr2059a@cbos.uc.edu          |
|   Madeira, Ohio  USA    =(___)=    at974@cleveland.freenet.edu   |
[___________________________ U ____________________________________]

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