Detecting Malicious Files with YARA Rules as They Traverse the Network

In this presentation, I will show how you can open source Zeek IDS (formerly bro) and how some custom developed scripts can be used to extract files from the network and identify attacks on an early stage before it causes more damage. Scanning for YARA files on the network has the benefit of increased performance, as compared to scanning several gigabytes or terabytes on the endpoint, as well as target specific mime types, used for malware delivery.
By David Bernal
Full Abstract & Presentation Materials: www.blackhat.c...