Chapter 7 Defining Signatures

Configuring Signatures

percentage

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external-rate-limit-percentage: 50 default: 100

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Step 9 Exit event action submode.

sensor(config-sig-sig-nor-eve-per)# exit sensor(config-sig-sig-nor-eve)# exit sensor(config-sig-sig-nor)# exit sensor(config-sig-sig)# exit sensor(config-sig)# exit

Apply Changes:?[yes]:

Step 10 Press Enter to apply the changes or enter no to discard them.

For More Information

For a detailed description of event actions, see Event Actions, page 8-4.

Configuring AIC Signatures

This section describes the Application Inspection and Control (AIC) signatures and how to configure them. It contains the following topics:

•Understanding the AIC Engine, page 7-17

•AIC Engine and Sensor Performance, page 7-18

•Configuring the Application Policy, page 7-18

•AIC Request Method Signatures, page 7-20

•AIC MIME Define Content Type Signatures, page 7-21

•AIC Transfer Encoding Signatures, page 7-24

•AIC FTP Commands Signatures, page 7-25

•Creating an AIC Signature, page 7-26

Understanding the AIC Engine

AIC provides thorough analysis of web traffic. It provides granular control over HTTP sessions to prevent abuse of the HTTP protocol. It allows administrative control over applications, such as instant messaging and gotomypc, that try to tunnel over specified ports. Inspection and policy checks for P2P and instant messaging are possible if these applications are running over HTTP. AIC also provides a way to inspect FTP traffic and control the commands being issued. You can enable or disable the predefined signatures or you can create policies through custom signatures.

Note The AIC engines run when HTTP traffic is received on AIC web ports. If traffic is web traffic, but not received on the AIC web ports, the Service HTTP engine is executed. AIC inspection can be on any port if it is configured as an AIC web port and the traffic to be inspected is HTTP traffic.

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

OL-29168-01

 

 

7-17

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Configuring AIC Signatures, Understanding the AIC Engine, Exit event action submode
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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.
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