I have what I believe is a Rootkit designed to cause havoc. I have spent many days with other forums trying everything under the sun to remove this devil.
Some of the apps I've used so far are; AdwCleaner, aswMBR, JRT, Malwarebytes Anti-Malware, RogueKiller, ComboFix, Rkill, FRST64, etc. . .
This Lamzap keeps reappearing in the C:/ProgramData directory. Even if one app locks the directory, it soon reappears. It has two initial directories, Lamzap & Lamzaps. It installs a hijacker in Firefox that takes you to a new unwanted Homepage. In my case it was a search engine; search.safesearch.
It also loads many, many directories in the C:/ProgramData directory. All contain executables and other necessary files.