Hi all, I'm a member of a gaming community that runs a few dozen TF2 and L4D servers. Today one of our most popular TF2 servers was and continues to be attacked by someone who holds some unknown grudge against our community. This person has claimed credit for the attacks through a posting on our message board.
It appears that the method which this attacker or group of attackers is using is limited to an in game exploit. No other server instances, or other server services are affected other than a single game server using a single core of a quad core win32 server hosted in a datacenter. Bandwidth use is normal during attacks. Are there any unpatched game exploits that anyone in the HLDS list community is aware of that can cause a server to increasingly lag up to the point of unplayability? The effects are similar to previous exploits that Valve patched earlier this year. We have contacted our ISP, the ISP of the poster who took credit for the attack (a whois lookup appears to lead to a proxy server in Chicago, IL), and the US Dept of Homeland Security (US-CERT). However we would like to be able to prevent these attacks as the investigation by the authorities progresses. If there are any suggestions, no matter how unlikely, we would be forever grateful for any help with this problem. Best Regards, Jason _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds

