Domain Fronting - Tradecraft Security Weekly #18

Tradecraft Security Weekly (Audio)

Domain fronting is a technique used to mask command and control (C2) traffic. It is possible for C2 channels to be proxied through CDN's like Cloudfront to make it appear like normal Internet traffic. It is very difficult to detect and block for defenders as it appears as if clients on a network are connecting to valid CDN domains. But, in reality it is transporting a command and control channel. In this episode of Tradecraft Security Weekly Beau Bullock (@dafthack) is joined by Ralph May (@ralphte1) to talk about what domain fronting is and how to set it up using Cloudfront and PowerShell Empire.

LINKS: https://blog.cobaltstrike.com/2017/02/06/high-reputation-redirectors-and-domain-fronting/ https://signal.org/blog/doodles-stickers-censorship/ https://www.securityartwork.es/2017/01/24/camouflage-at-encryption-layer-domain-fronting/ https://trac.torproject.org/projects/tor/wiki/doc/meek http://bryceboe.com/2012/03/12/bypassing-gogos-inflight-internet-authentication/

Full Show Notes: https://wiki.securityweekly.com/TS_Episode18