The motive behind murder was to surface and extend the information that was once universally provided by finger(1) through a modern interface. Building on this, murder has a plug-in infrastructure to add additional features, allowing it to become a full-fledged social-information platform that utilizes standard and open technologies.
Arb-Scan is a remote banner scanner written in bash and Perl. It supports 12 different services banner checks (daytime, ftpd, sshd, smtpd, domain, finger, httpd, pop2, pop3, nntp, imapd and snpp). It features IP file reading, logging, random IP scanning, ftp anonymous login checking and VRFY/EXPN smtp checking.