If "free" is a hard requirement, check out DaVinci Resolve . The standard version is completely free, professional-grade, and has a built-in motion graphics tool called "Fusion" that does exactly what After Effects does.
Even if you find a version that isn't a virus, CC 2018 is now several years old. Adobe After Effects CC 2018 Free Download
If you’re on a budget or just starting out, there are better paths than risking your computer: If "free" is a hard requirement, check out DaVinci Resolve
It sounds like you’re looking for a way to get your hands on After Effects. While a "free download" link for a specific version like CC 2018 might seem like a shortcut to getting your project started, it often leads to a story with a messy ending. If "free" is a hard requirement