Tstot.c is a remote exploit for xloadimage for Red Hat 7.0. Xloadimage is a Netscape 4.77 helper application with a buffer overflow vulnerability. Binds a shell to a port. Fix available here.
7c5e9b0f582f8b9f8069d43e9559a992dd4b582e20d60a2d78d0443ffbdce520