Securing Cisco Networks with Snort Rule Writing Best Practices
- Course Code SSFRULES
- Duration 3 days
Course Delivery
Additional Payment Options
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GTC 41
GTC, Global Knowledge Training Credit, please contact Global Knowledge for more details
- CLC Accepted
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Course Delivery
This course is available in the following formats:
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Company Event
Event at company
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Public Classroom
Traditional Classroom Learning
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Virtual Learning
Learning that is virtual
Request this course in a different delivery format.
Course Overview
TopSecuring Cisco Networks with Snort Rule Writing Best Practices is a lab-intensive course that introduces students to the open source Snort community and rule-writing best practices.Users focus exclusively on the Snort rules language and rule writing. Starting from rule syntax and structure to advanced rule-option usage, you will analyze exploit packet captures and put the rule writing theories learned to work—implementing rule-language features to trigger alerts on the offending network traffic.This course also provides instruction and lab exercises on how to detect certain types of attacks, such as buffer overflows, utilizing various rule-writing techniques. You will test your rule-writing skills in two challenges: a theoretical challenge that tests knowledge of rule syntax and usage, and a practical challenge in which we present an exploit for you to analyze and research so you can defend your installations against the attack.This course combines lecture materials and hands-on labs throughout to make sure that you are able to successfully understand and implement open source rules.
Virtual Learning
This interactive training can be taken from any location, your office or home and is delivered by a trainer. This training does not have any delegates in the class with the instructor, since all delegates are virtually connected. Virtual delegates do not travel to this course, Global Knowledge will send you all the information needed before the start of the course and you can test the logins.
Course Schedule
TopTarget Audience
TopThis course is designed for security professionals who need to know how to write rules and understand open source Snort language.
Course Objectives
TopAfter completing this course, you should be able to:
- Understand rule structure, rule syntax, rule options, and their usage
- Configure and create Snort rules
- Understand the rule optimization process to create efficient rules
- Understand preprocessors and how data is presented to the rule engine
- Create and implement functional Regular Expressions in Snort rules
- Design and apply rules using byte_jump/test/extract rule options
- Understand the concepts behind protocol modeling to write rules that perform better
Course Content
TopModule 1: Welcome to the Sourcefire Virtual Network
Module 2: Basic Rule Syntax and Usage
Module 3: Rule Optimization
Module 4: Using PCRE in Rules
Module 5: Using Byte_Jump/Test/Extract Rule Options
Module 6: Protocol Modeling Concepts and Using Flowbits in Rule Writing
Module 7: Case Sudies in Rule Writing and Packet Analysis
Module 8: Rule Performance Monitoring
Module 9: Rule Writing Practiceal Labs, Exercises, and Challenges
Labs
Course Prerequisites
TopAttendees should meet the following prerequisites:
- Technical understanding of TCP/IP networking and network architecture - ICND1 Recommended
- Working knowledge of how to use and operate Cisco Sourcefire Systems or open source Snort
- Working knowledge of command-line text editing tools, such as the vi editor
- Basic rule-writing experience is suggested