I published the following diary on isc.sans.edu: “Generating PCAP Files from YAML“: The PCAP file format is everywhere. Many applications generate PCAP files based on information collected on the network. Then, they can be used as evidence, as another data source for investigations and much more. There exist plenty of
I published the following diary on isc.sans.org: “Truncating Payloads and Anonymizing PCAP files“: Sometimes, you may need to provide PCAP files to third-party organizations like a vendor support team to investigate a problem with your network. I was looking for a small tool to anonymize network traffic but also to
I published the following diary on isc.sans.org: “Converting PCAP Web Traffic to Apache Log“: PCAP data can be really useful when you must investigate an incident but when the amount of PCAP files to analyse is counted in gigabytes, it may quickly become tricky to handle. Often, the first protocol
I published the following diary on isc.sans.org: “Comment your Packet Captures!“: When you are investigating a security incident, a key element is to take notes and to document as much as possible. There is no “best” way to take notes, some people use electronic solutions while others are using good
I published the following diary on isc.sans.org: “The easy way to analyze huge amounts of PCAP data“. When you are investigating a security incident, there are chances that, at a certain point, you will have to dive into network traffic analysis. If you’re lucky, you’ll have access to a network capture.
During the last BruCON edition, I grabbed some statistics about the network usage of our visitors. Every years, I generate stats like the operating systems types, the top-used protocols, the numbers of unique MAC addresses, etc. But this year, we also collected all traffic from the public network. By “public“,
Everything has been said about the “cloud”, or more precisely, “cloud computing”. Like any new technology, there are pro and con, good and bad things. BTW, the cloud is not so new. For a while, lot of organizations already used a cloud infrastructure but it remained a “private cloud”. Since
pcapr.net is a cloud (again!) service available for a while. Basically, it’s a repository of pcap (“packet capture”) traces uploaded by members. The packets are dissected and presented in a human readable form. Once inspected and indexed, a search engine helps you to find interesting traces using a simple syntax