HackerSmacker and TheShield
The person who informed me that they were hiacked by messagebroadcaster.net was plagued with popups advertising HackerSmacker and TheShield, among several of the popups she received. I don't know much about these programs yet but will post more after some research on them.
This website will be updated regularly with any new developments. Anyone wishing to contact me for inquiries or to relate their experiences may do so at nomorespyware@yahoo.com.