The core function is the "Junk File Cleaner." It scans the system for:
is a legitimate system optimization and cleaning tool developed by EaseUS Software. That said, "portable" versions of commercial software — especially those labeled with version numbers like "324" — are often unauthorized cracks, keygens, or modified executables that bypass licensing. easeus+cleangenius+pro+324+portable
You can find legitimate free versions of current EaseUS tools at the EaseUS Download Center Standard Cleaners: For a portable system cleaner, CCleaner Portable The core function is the "Junk File Cleaner