I published the following diary on isc.sans.edu: “Malicious Word Document with Dynamic Content“: Here is another malicious Word document that I spotted while hunting. “Another one?” may ask some of our readers. Indeed but malicious documents remain a very common infection vector and you learn a lot when you analyze
I published the following diary on isc.sans.edu: “A Mix of Python & VBA in a Malicious Word Document“: A few days ago, Didier wrote an interesting diary about embedded objects into an Office document. I had a discussion about an interesting OLE file that I found. Because it used the same
I published the following diary on isc.sans.edu: “Suspicious Endpoint Containment with OSSEC“: When a host is compromised/infected on your network, an important step in the Incident Handling process is the “containment” to prevent further infections. To place the device into a restricted environment is definitively better than powering off the system
I published the following diary on isc.sans.edu: “Sandbox Evasion Using NTP“: I’m still hunting for interesting (read: “malicious”) Python samples. By reading my previous diaries, you know that I like to find how attackers implement obfuscation and evasion techniques. Like yesterday, I found a Python sample that creates a thread
I published the following diary on isc.sans.edu: “Python and Risky Windows API Calls“: The Windows API is full of calls that are usually good indicators to guess the behavior of a script. In a previous diary, I wrote about some examples of “API call groups” that are clearly used together
I published the following diary on isc.sans.edu: “Example of Malicious DLL Injected in PowerShell“: For a while, PowerShell remains one of the favorite languages for attackers. Installed by default (and almost impossible to get rid of it), powerful, perfectly integrated with the core operating system. It’s very easy to develop
I published the following diary on isc.sans.edu: “Malicious Excel Sheet with a NULL VT Score“: Just a quick diary today to demonstrate, once again, that relying only on a classic antivirus solution is not sufficient in 2020. I found a sample that just has a very nice score of 0/57 on VT. Yes, according to
I published the following diary on isc.sans.edu: “Keep An Eye on LOLBins“: Don’t misread, I won’t talk about “lolcats” today but “LOLBins” or “Living Off The Land Binaries”. All operating systems provide a rich toolbox to achieve multiple day-to-day tasks like maintenance of the certificates, installation of patches and applications,
Yesterday, a very interesting article was published on the MISP blog by my friend Koen about a solution to monitor a MISP instance with Cacti. Monitoring your threat intelligence platform is always a good idea because many other tools depend on it. You can feed other tools with MISP data
I published the following diary on isc.sans.edu: “Tracking A Malware Campaign Through VT“: During the weekend, I found several samples from the same VBA macro. The only difference between all the samples was the URL to fetch a malicious PE file. I have a specific YARA rule to search for embedded
