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-
-
- KEYTRAP v3.0 - Keyboard Key Logger
- by dcypher (dcypher@mhv.net)
-
- http://www.mhv.net/~dcypher/keytrap.html
-
- -------------------------------------------------------------------------
- THIS PROGRAM MAY NOT BE DISTRIBUTED IN ANY WAY THAT VIOLATES U.S. OR
- FOREIGN LAW. THIS PROGRAM MUST NOT BE USED TO GAIN UNAUTHORIZED ACCESS
- TO DATA AND IS NOT INTENDED TO HELP USERS TO VIOLATE THE LAW !
- -------------------------------------------------------------------------
- The author disclaims ALL warranties relating to the program, whether
- express or implied. In absolutely no event shall the author be liable
- for any damage resulting from the use and/or misuse of this program.
- -------------------------------------------------------------------------
-
-
- WHAT IS KEYTRAP ?
- ~~~~~~~~~~~~~~~~~
- KEYTRAP is a very effective keyboard key logger that will log
- keyboard scancodes to a logfile for later conversion to ASCII
- characters. Keytrap installs as a TSR, remaining in memory
- untill the computer is turned off. Keytrap will NOT work while
- you are in windows.
-
- CONVERT will convert the keyboard scancodes captured by Keytrap
- to their respective keyboard (ASCII) characters. Convert is now
- written in C. Source code is included.
-
-
- NOTES
- ~~~~~
- Both programs were coded so any modifications to the source codes
- could EASILY be made. Both programs are HIGHLY configureable. They
- can be easily changed to fit almost ANY dos application you need.
- The TSR (Keytrap) is VERY powerful, it will capture keys during
- almost anything you run. There are very few ways to defeat it.
-
- Keytrap uses interrupts 9 and 21. Keytraps interrupt 9 ISR is checked
- via the interrupt 21 ISR and replaced if need be. You can easily add
- many more 9 ISR's if a program decides to take full control of the
- 9 ISR more then twice, which is VERY unlikely. Very few programs take
- full control of ISR 9.
-
- Keytrap will not display ANY messages. Check the logfile and
- the size of the logfile if your not sure Keytrap is working.
-
- Keytrap will only make the logfile hidden if the logfile is
- actually created by Keytrap or the maximum size of the logfile
- is reached or exceeded. If you specify a file that already
- exists then Keytrap will not change that files attributes and
- will append all scancode data to the end of the file.
-
- Keytrap will not crash if the logfile gets deleted while Keytrap
- is in memory. It will just keep looking for the logfile so it can
- write its buffer. A buffer write is not forced untill the buffer
- reaches 400 bytes. It will then try to write its buffer during
- the next interrupt 21 call.
-
- If you have any questions or need some help, e-mail me.
-
- dcypher <dcypher@mhv.net>
-