some files have recently been put in my home directory that i cannot explain. one of them is a file called typescript. i researched it, and it appears that it's a log for a shellscript that records keystrokes within a console session. since i did not manually created any script of the sort, does that mean someone outside put it there or might a program have created for some purpose of use? i looked in the supposed log file called "typescript" and didn't find much, just a timestamp for creation and ending of the script and location within the network and directory the script was written on. could the type record of the session have been moved somewhere else or deleted alltogether?

As you say, the file "typescript" was most probably created by the script command, which is used to keep a copy of an interactive session. One can sometimes run this by accident, by typing script at the prompt. If you are worried
that the script command is being started by some other script, you can always use the lsof command to look at the open files and get details abot hwo they were started. For example:

lsof | less

and then search for script in this output, to find either /usr/bin/script (the command itself) or typescript (the log file).