Programs that lock your personal files until you pay a fee.
Because "z2bil" does not refer to a known software or legitimate service—and typically appears as a random string of characters in encoded data—it is highly likely that any link offering a download is a security risk.
Knowing the context can help me find a safe, legitimate source for you. Create a blog - Blogger Help You can create and manage your own blog with Blogger. Google Help 0001213900-22-011656.txt - SEC.gov
Only download software from the official developer's website or verified app stores.
Downloading compressed archives (.rar, .zip, .7z) from unverified sources is one of the most common ways to infect a computer. These files can hide:
What were you trying to find when you saw "z2bil"?
Here is a blog post warning users about these types of suspicious file downloads.