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VID 15003
Severity 40
Port 79
Protocol TCP
Class BackDoor
Detailed Description The remote finger daemon seems to be a backdoor, because it
seems to react to the request :

cmd_rootsh@target

If a root shell has been installed as /tmp/.sh, then this finger daemon is definitely a trojan, and your system has been compromised.

* References:
http://www.sans.org/resources/idfaq/fingerd.php
http://www.iss.net/security_center/static/7269.php
Recommendation Audit the integrity of your system, since it seems to have been compromised.
Related URL (CVE)
Related URL (SecurityFocus)
Related URL (ISS)