modified by me.
chkrootkit is a tool to locally check for signs of a rootkit. It
contains:
* chkrootkit: a shell script that checks system binaries for
rootkit modification.
* ifpromisc.c: checks if the network interface is in promiscuous
mode.
* chklastlog.c: checks for lastlog deletions.
* chkwtmp.c: checks for wtmp deletions.
* check_wtmpx.c: checks for wtmpx deletions. (Solaris only)
* chkproc.c: checks for signs of LKM trojans.
* chkdirs.c: checks for signs of LKM trojans.
* strings.c: quick and dirty strings replacement.