Join Sandra Toner for an in-depth discussion in this video Checking out firewall logs, part of Learning Computer Security Investigation and Response.
- In this video we'll cover what information from a firewall…can be useful for a forensic investigator.…The firewall is a go-between for two IP addresses…trying to communicate on the internet.…We're going to look at two different kinds of firewall:…first, a packet-filter,…and then a stateful packet inspection.…Packet filter is the most basic,…all it does is either allow or deny packets…based on a set of rules.…Stateful packet inspection is a little different,…it inspects each packet and based on its decision,…will allow or deny that specific packet…and other associated packets.…
If you've never reviewed the firewall logs previously,…this can be a little tricky…because you don't really have an idea what may or may not…be a normal event for that firewall.…Running a port scan is intended to probe a server or host…for any open ports.…This is used sometimes by attackers in a decoy,…the malicious actor will spoof a scan…originating for a botnet or a large number of systems…under its control,…they might also attempt to connect to common ports.…
Author
Sandra Toner
Released
12/16/2015This course covers the basics of computer forensics and cyber crime investigation. Author Sandra Toner provides an overview of forensic science, and discusses best practices in the field and the frameworks professionals use to conduct investigations. Then, after showing how to set up a simple lab, Sandra describes how to respond to a cyber incident without disturbing the crime scene. She dives deep into evidence collection and recovery, explaining the differences between collecting evidence from Windows, Mac, and Linux machines. The course wraps up with a look at some of the more commonly used computer forensics software tools.
- Applying science to digital investigations
- Understanding forensic frameworks
- Defining cyber crime: harassment, hacking, and identity theft
- Setting up a forensic lab
- Responding to cyber incidents
- Collecting and recovering evidence
- Examining networks for evidence
- Applying forensics to Windows, Mac, and Linux
- Working with forensics tools
Skill Level Beginner
Duration
Views
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Introduction
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Welcome33s
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1. Understanding Forensic Science
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Identifying digital evidence2m 20s
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2. Defining Cyber Crime
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Classifying cyber crime1m 52s
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Defining identity theft3m 35s
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Examining cyber harassment4m 28s
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3. Setting Up a Forensic Lab
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Building a knowledgebase2m 43s
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Working with evidence1m 28s
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Equipping the lab1m 23s
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Selecting forensic software2m 50s
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4. Responding to a Cyber Incident
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Discovering an incident2m 59s
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Preserving evidence2m 9s
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Reporting cyber incidents4m 28s
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5. Collecting Evidence
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Following protocol2m 25s
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Storing evidence2m 28s
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Imaging evidence1m 59s
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6. Recovering Evidence
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Finding hidden data4m 44s
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Resurrecting data2m 36s
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Working with damaged media2m 39s
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Viewing browser history2m 11s
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7. Network-Based Evidence
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Checking out firewall logs1m 17s
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Detecting network intrusion2m 10s
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Examining router evidence1m 42s
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8. Windows Forensics
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Finding Windows directories1m 54s
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9. Macintosh Forensics
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Applying forensics to a Mac3m 17s
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Checking out Mac logs2m 2s
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Finding Mac directories1m 40s
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10. Linux Forensics
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Checking out Linux log files3m 40s
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Finding Linux directories2m 28s
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11. Forensic Tools
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Conclusion
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Video: Checking out firewall logs