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’m using OSSEC to feed an instance of TheHive to investigate security incidents reported by OSSEC. To better categorize the alerts and merge similar events, I needed to add more observables. OSSEC alerts are delivered by email with interesting information for TheHive. This was an interesting use case to play
Sometimes, a security incident starts with an email. A suspicious email can be provided to a security analyst for further investigation. Most of the time, the mail is provided in EML or “Electronic Mail Format“. EML files store the complete message in a single file: SMTP headers, mail body and all
I just published a new update of my imap2thehive tool. A quick reminder: this tool is aimed to poll an IMAP mailbox and feed an instance of TheHive with processed emails. This new version is now able to extract interesting IOCs from the email body and attached HTML files. The following indicators are
The number of malicious documents generated every day keeps growing for a while. To produce this huge amount of files, the process must be automated. I found on Pastebin a Python script to generate malicious Office documents. Let’s have a look at it… [Read more]
I just published a quick update of my imap2thehive tool. Files attached to an email can now be processed and uploaded as an observable attached to a case. It is possible to specify which MIME types to process via the configuration file. The example below will process PDF & EML
TheHive is a great incident response platform which has the wind in its sails for a while. More and more organization are already using it or are strongly considering to deploy it in a near future. TheHive is tightly integrated with MISP to push/pull IOC’s. Such tool must be fed with
Who said that all computers are connected today? They are many classified environments where computers can simply never connect to the wild Internet. But sometimes, you need to install some pieces of software from online resources. The classic case is Python modules. Let’s take a practical example with the PyMISP which
I published the following diary on isc.sans.org: “Proactive Malicious Domain Search“: In a previous diary, I presented a dashboard that I’m using to keep track of the DNS traffic on my networks. Tracking malicious domains is useful but what if you could, in a certain way, “predict” the upcoming domains
I published the following diary on isc.sans.org: “Top-100 Malicious IP STIX Feed“. Yesterday, we were contacted by one of our readers who asked if we provide a STIX feed of our blocked list or top-100 suspicious IP addresses. STIX means “Structured Threat Information eXpression” and enables organizations to share indicator
