Who made ComboFix?
BleepingComputer Review: ComboFix is a program, created by sUBs, that scans your computer for known malware, and when found, attempts to clean these infections automatically.
What is ComboFix Reddit?
Combofix has two modes of operation. Mode one, automated scan and removal of malicious items (both files and in registry). This mode has proven safe in hundreds of environments on literally thousands of individual machines in my personal experience.