How Browser Pivoting Works
Internet Explorer delegates all of its communication to a library called WinINet. This library, which any program may use, manages cookies, SSL sessions, and server authentication for its consumers. Cobalt Strike’s Browser Pivoting takes advantage of the fact that WinINet transparently manages authentication and reauthentication on a per process basis.
By injecting Cobalt Strike’s Browser Pivoting technology into a user’s Internet Explorer instance, you get this transparent reauthentication for free.