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- Newsgroups: alt.hackers
- Path: sparky!uunet!elroy.jpl.nasa.gov!sdd.hp.com!cs.utexas.edu!torn!watserv1!watmath!undergrad.math.waterloo.edu!napier.waterloo.edu!nimouat
- From: PPan@Fairytale (Peter Pan)
- Subject: Re: Forgery
- Message-ID: <Brsy56.6po@undergrad.math.waterloo.edu>
- Sender: nimouat@napier.waterloo.edu (Nikos Mouat)
- Organization: University of Nowhere
- References: <1992Jul21.033018.15388@ctr.columbia.edu> <1992Jul22.043712.21836@amhux2.amherst.edu>
- Date: Wed, 22 Jul 1992 18:03:05 GMT
- Approved: GBush@whitehouse.com
- Lines: 40
-
- In article <1992Jul22.043712.21836@amhux2.amherst.edu>, twpierce@amhux1.amherst.edu (Tim Pierce) writes:
- > ObHack: disassembling IBM PC graphics software to figure out which
- > bits to twiddle for graphics mode when you don't have a manual handy.
-
- Just out of curiosity, how do the BIOS initgraph routines do it,
- Through the VGA (or whatever graphics card) chip?
-
- >
- > --
- > ____ Tim Pierce / "You mean there are TWO of you, Pierce?
- > \ / twpierce@amherst.edu / God help us all."
- > \/ (BITnet: TWPIERCE@AMHERST) / -- Major Charles Emerson Winchester III
-
- A couple of post ago, someone mentioned something about writing a
- trojan horse login program to collect and store userids and passwords.
- Did you get it to work? Its fairly trivial actually, for this reason I always
- do a fake login before really logging in to make sure everything is 'real'.
- I tried writing a program like this once, and it was a real pain in the ass.
- It was for a MVS/XA machine, but the terminals were mostly PCs emulating
- 3250 terminals. It was a real bitch because there were all these really cheesy
- title screens and shit and emulating the 3250 keystrokes was a bit of a pain.
- I did a bit of work on it and eventually I decided it would be easier
- to write a TSR that captured the first few keystrokes untill two carriage
- returns had been entered, but that would be too hard because there was already a
- TSR hooked into the keyboard interrupt to convert extended keyboard scan
- codes to 3270 equivalents. I eventually gave up completely because I realized
- doing this kind of thing was against the law, and I'm a good, law abiding
- citizen.
- Also, I tried posting to a moderated newsgroup after figuring out
- how to do it, and I got flamed to hell through mail. Oh well.
-
- Cheers.
-
- --
- The opinions represented here are my own and not that of any past, present
- or future employer, school or any other institution unless there is
- money to be made. In that case, all thoughts, sentence constructs, and
- profitable ideas are solely those of my present employer, school or other
- institution, and are copyright by all applicable laws.
- Isn't intellectual property great?
-