Chad Krause

A small blog about my projects

Quick Warning: Crypto Mining Sites!

Have you been mining for other people?

I stumbled upon a site today while looking up a tutorial. This site immediatly used 600% of my CPU (6 threads at 100%) and was making my fans go crazy.

I paused Javascript execution and saw that there seemed to be a crypto miner in the background.

I thought this was particularly terrible because it's a tutorial so there is a great chance that I would keep that tab open for a while.

Here is the code I saw that led me to believe there was crypto miners:

Some encoded javascript and webassembly. There is no reason to have any of them. Also, I found some javascript that had "HashsPerSecond" somewhere but I can't seem to find it again.

That all leaves me to believe that this site is a spam site that runs crypto miners in the background.

Here is a link to the site:

Be careful, guys!

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