Security Monitoring with Cisco Security MARS Threat mitigation system deployment Gary Halleen Greg Kellogg Networks and hosts are probed hundreds or thousands of times a day in an attempt to discover vulnerabilities. An even greater number of automated attacks from worms and viruses stress the same devices. The sheer volume of log messages or events generated by these attacks and probes, combined with the complexity of an analyst needing to use multiple monitoring tools, often makes it impossible to adequately investigate what is happening. Cisco Security Monitoring, Analysis, and Response System (MARS) is a next-generation Security Threat Mitigation system (STM). Cisco Security MARS receives raw network and security data and performs correlatio...