Could BLC be behind the IP spamming our server ?

Hello,
we’ve been using BLC (local version) for years without issues, and we’re always using latest version as it updates automatically; same thing goes for our WP version, we’re up to date on everything.

The reason why i’m posting is we’re trying to understand if BLC is spamming our server or not, because we have some indications that it could be doing that.

Recently we’ve noticed an abnormally high CPU load on our server. By looking at our server logs, we can see an IP address is constantly bombarding URLs from our blog, but mostly images, to the point almost 20% of lines in our logs are from this IP address.

We’ve added htaccess rules to block this IP address (we now see in our logs it successfully gets 403 responses from our server).

But the weird thing is, right after we did this, BLC started getting 403s on every internal URL it scans (we use the old “local” mode); which seems to mean this problematic IP is related to BLC somehow.

So my question is the following : is the IP address 54.36.142.130 related to BLC in any way ?

Thanks,
Baptiste