How Domain Fronting Works

For example gcat is a tool that uses well formed email to communicate with implants.

How domain fronting works. Not only do they offer their own services using these but also the ones you can host on their servers amazon cloudfront for instance. Domain fronting has been around for years and i ve always understood the concept but never actually looked at exactly how it works. We need to be looking into how our tools and techniques relate to trusted sources. How domain fronting works domain fronting works at https layer and under these different requests for hostname will be different at different layers.

There are a large number of sites and domains your security tools ignore. Well this is a much larger issue than just domain fronting. Domain fronting is a masquerading technique that is typically used to circumvent internet censorship by making traffic look like it s associated with a web domain that isn t restricted. How domain fronting works domain fronting works at https layer and under these different requests for hostname will be different at different layers.

How domain fronting works huge internet companies like google amazon and microsoft offer their web services using cdns content delivery networks. That was the point i. Formally domain fronting is a technique leveraged by threat actors to use high reputation domains to disguise c2 callbacks from both the user and security tool sets. A 101 on domain fronting.

A 101 on domain fronting. In domain fronting hostname information will be same for dns request and sni whereas http host header which is hidden from censors from https encryption will carry another hostname. Domain fronting attacks work in cloud distribution networks cdns. Domain fronting is a technique for internet censorship circumvention that uses different domain names in different communication layers of an https connection to discreetly connect to a different target domain than is discernable to third parties monitoring the requests and connections.

In researching this tool we discovered that most firewalls and tls ssl interception. Usually domain fronting relies on content delivery networks cdn that host multiple domains. Domain fronting ist ein technischer vorgang bei dem internet zensur durch das verschleiern der domain einer https verbindung umgangen wird der vorgang passiert in der anwendungsschicht und erlaubt eine verbindung herzustellen auch wenn die verbindung durch technische maßnahmen wie deep packet inspection ip oder dns abfragen blockiert wird. That was until recently when i did some work with chris truncer who had us set it up as part of a red team test.

Mon 11th feb 19.