A Lustrum of Malware Network Communication: Evolution and Insights

I recently came across this white paper which focuses in the dynamic analysis of network indicators for threat detection. The paper is very easy to read and I found very surprising some of the conclusions obtained from the research. The most revealing one is the fact that months before researchers have access or discovered a…

Hunting down Threat Infrastructure (2, with PassiveTotal)

It’s been a while since I wrote the first post on Threat infrastructure and I believe it will be beneficial for you to first go through it, if you have not done it yet. This will set the context to understand the issues we are trying to solve here. The first post explained how attackers…

Hunting down Threat Infrastructure (1)

In this two article series, I am going to explain how to spot anomalous activity in proxies and DNS queries coming out of your network. Additionally, I am also explaining how to recognize suspicious threat infrastructure, what elements you need to pay attention to, how this infrastructure behaves, what are the challenges for the defender and…