SSAC Advisory on Fast Flux Hosting and DNS
"Fast flux" is an evasion technique that cyber-criminals and Internet miscreants use to evade identification and to frustrate law enforcement and anticrime efforts aimed at locating and shutting down web sites used for illegal purposes. Security professionals, the anti-cybercrime community, and law enforcement agencies have studied fast flux hosting for some time. Fast flux hosting operates on top of a large, distributed network of compromised systems that may very well span the globe. A thriving underground business leases dozens to thousands of compromised systems to Internet miscreants as fast flux service networks.