Have you heard of cryptojacking? It’s the practice of secretly using your computer’s resources to mine cryptocurrency without the user’s permission.
Typically, you’ll see the practice on shady websites popular Bittorrent site The Pirate Bay appears to have experimented with it at one point but a cryptojacking program has recently been found in a popular Chrome extension.
BleepingComputer reports that Archive Poster, a Chrome extension that helps Tumblr users reblog and repost from other blogs, also runs Coinhive, a cryptojacking program that secretly mines the cryptocurrency Monero using your CPU.
This is noted in several user reviews in the Chrome web store.
While cryptojacking software is not as dangerous as common malware it typically doesn’t do damage to your computer or files it’s annoying as it uses your CPU time and potentially slows down your computer considerably.