Security Basics mailing list archives
ICMP question
From: cc <cc () belfordhk com>
Date: Fri, 19 Mar 2004 11:46:25 +0800
Hi, My firewall has been receiving an inordinate amount of ICMP pings from external systems. The strange thing about this is that the ICMP packets coming to my firewall are actually ICMP responses and not requests. I'm still monitoring the network to see if a machine is pinging any machines outside of the LAN. At this moment, I don't see any suspicious useage. I've looked at the logs (snort) and noticed that some of these pings originate from *.cirn.net. Has anyone heard of this network? And then, some of these pongs contains a payload which has the message "Please help me, matrix catch me". I've been googling and couldn't find anything. Does anyone have any idea what this ping response might be? A bot? Should I be worried about this? Any help appreciated. --------------------------------------------------------------------------- Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off any course! All of our class sizes are guaranteed to be 10 students or less to facilitate one-on-one interaction with one of our expert instructors. Attend a course taught by an expert instructor with years of in-the-field pen testing experience in our state of the art hacking lab. Master the skills of an Ethical Hacker to better assess the security of your organization. Visit us at: http://www.infosecinstitute.com/courses/ethical_hacking_training.html ----------------------------------------------------------------------------
Current thread:
- ICMP question cc (Mar 19)
- Re: ICMP question Fernando Gont (Mar 22)