Filtering out top 1 million domains from corporate network traffic

During network traffic analysis and malware investigations, we often use IP and domain reputation lists to quickly filter out traffic we can expect to be benign. This typically includes filtering out traffic related to the top X most popular websites world-wide. For some detection mechanisms, this technique of filtering out popular traffic is not recommended […]

Going beyond Wireshark: experiments in visualising network traffic

Introduction At NVISO Labs, we are constantly trying to find better ways of understanding the data our analysts are looking at. This ranges from our SOC analysts looking at millions of collected data points per day all the way to the malware analyst tearing apart a malware sample and trying to make sense of its […]