This indicates an attempt to exploit a denial of service vulnerability in Trend Micro ServerProtect.
A remote attacker can trigger the vulnerability by sending a specially crafted packet to the EarthAgent daemon, resulting in a denial of service condition.
Trend Micro ServerProtect for Windows Management Console 5.58
Denial of Service.
Apply patch, available from the web site http://esupport.trendmicro.com/support/viewxml.do?ContentID=en-125254