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- /-----------------------------------------------------------------------------\
- | tNO crackme #1 by Prophecy [tNO] (08/22/98) |
- | |
- | If you obtain a valid solution to this crackme, you get |
- | a trial in tNO. Valid until 31 Dec 1998. |
- | |
- | mail me : prophecy_@usa.net or |
- | efnet irc in #cracking4newbies, #tno |
- \-----------------------------------------------------------------------------/
-
- * a valid solution constitutes either a serial or a keygen- a patch of course
- is not valid
- * this was not meant to be a tracing exercise in softice, and so here are
- a few tips that will land you bang in the middle of the serial routine:
- (this will also mean you won't have to worry that this is a dos crackme)
-
- (1) bpint 3 (i have deliberately inserted this at the start of the
- serial routine - this won't normally work with other
- crackmes)
- (2) enter your name and code
- (3) hit enter and softice will break
- (4) type ds:0 (this will display the correct selector)
- (5) now you can find your name/code in memory by typing s 0 L ffff "blah"
- (note only 4 ffff as this is 16 bit dos crackme)
- (6) set a bpr on your name and code and hit f5 to see what happens!
-
- note: if you see something like this : MOV AL, [BP+FAFA], but when you
- type "d bp+fafa" it says invalid address, to see the valid address
- simply type "?bp+fafa" and use the last 4 digits of the result, eg
- if bp=fff6, and you have bp+fafa, type "?bp+fafa", this gives: 1faf0
- so type "d faf0" and you're in the money.
-
- * also the first person to write a keygen for this crackme will get greeted on
- our MAIN page (this is not the intro screen). our website is at http://tno.
- home.ml.org.
-
- note: if you write a keygen, please send me both the .exe and the
- source code!! ^^^^
-