Example Meta Engine Signature

Chapter 7 Defining Signatures

Creating Custom Signatures

sensor(config-sig-sig-ale-fir-yes)# summary-threshold 200

Step 9 Exit alert frequency submode.

sensor(config-sig-sig-ale-fir-yes)# exit sensor(config-sig-sig-ale-fir)# exit sensor(config-sig-sig-ale)# exit

Step 10 Configure the signature to apply anti-evasive deobfuscation before searching:

sensor(config-sig-sig)# engine service-httpsensor(config-sig-sig-ser)# de-obfuscate true

Step 11 Configure the Regex parameters.

sensor(config-sig-sig)# engine service-httpsensor(config-sig-sig-ser)# regex sensor(config-sig-sig-ser-reg)# specify-uri-regex yes sensor(config-sig-sig-ser-reg-yes)# uri-regex [Mm][Yy][Ff][Oo][Oo]

Step 12 Exit Regex submode.

sensor(config-sig-sig-ser-reg-yes)# exit sensor(config-sig-sig-ser-reg-)# exit

Step 13 Configure the service ports using the signature variable WEBPORTS.

sensor(config-sig-sig-ser)# service-ports $WEBPORTS

Step 14 Exit signature definition submode.

sensor(config-sig-sig-ser)# exit sensor(config-sig-sig)# exit sensor(config-sig)# exit

Apply Changes:?[yes]:

Step 15 Press Enter to apply the changes or enter no to discard them.

Caution A large number of Meta engine signatures could adversely affect overall sensor performance.

The Meta engine defines events that occur in a related manner within a sliding time interval. This engine processes events rather than packets. As signature events are generated, the Meta engine inspects them to determine if they match any or several Meta definitions. The Meta engine generates a signature event after all requirements for the event are met.

All signature events are handed off to the Meta engine by the Signature Event Action Processor. The Signature Event Action Processor hands off the event after processing the minimum hits option. Summarization and event action are processed after the Meta engine has processed the component events.

	Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2
7-46	OL-29168-01

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.

Cisco Systems IPS4510K9 manual Example Meta Engine Signature, Exit alert frequency submode

Models: IPS4510K9