New
#1
It means that something has injected code into your process explorer.exe.
Have you run Malwarebytes Antimalware for a second opinion?
Download version 2.2 here and install it; open it up, update the database, and run a threat scan
Malwarebytes Anti-Malware Download
Could be a false positive in Rogue Killer. Just need a second opinion.
EDIT: Make sure ROOTKIT detection is selected.