UDP port 80 DDoS attack

Ray Gasnick III rgasnick at milestechnologies.com
Sun Feb 5 23:36:13 UTC 2012

We just saw a huge flux of traffic occur this morning that spiked one of our upstream ISPs gear and killed the layer 2 link on another becuase of a DDoS attack on UDP port 80.

Wireshark shows this appears to be from a compromised game server (call of duty) with source IPs in a variety of different prefixes.

Only solution thus far was to dump the victim IP address in our block into the BGP Black hole community with one of our 2 providers and completely stop advertising to the other.

Anybody see this recently and have any tips on mitigation,  reply on or off list.

Thank You,

Ray Gasnick III
CISSP, Technology Specialist: Network Security & Infrastructure
Miles Technologies

Phone: (856) 439-0999 x127
Direct: (856) 793-3821
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