PSPY is a tool which allows obtaining processes information without having root privileges. With PSPY commands can be executed by other users, cron jobs etc.
Enum4linux is a tool for enumerating data from Windows and other Linux Operating System. It is written in Perl and is a wrapper around the Samba tools smbclient, rpclient, net and nmblookup.
It performs over 65 checks and get kernel information to locate possible escalation points such as SUID/GUID files and Sudo/rhost mis-configurations. The script use a provided keyword to search through *.conf and *.log files.