netloader.cc/run.js loaded into every page - suspect existence of malicious extension

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Firefox
Security
5 years ago
5 years ago

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(Reporter: zwol, Unassigned)

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(1 attachment)

(Reporter)

Description

5 years ago
Created attachment 651204 [details]
suspicious javascript blob

I have been teaching people to optimize page-load time, and sometimes odd things come up in Firebug's Net panel.  For instance, one of the students reports that the canned site-to-be-optimized loads http://netloader.cc/run.js , which I know I didn't put there.  There's not a lot to be found about this site online, and I don't have time right now to try to figure out what the rather large minified JS blob tries to do, but I suspect that there exists a malicious extension that loads this blob into *every page*.  If so, we should identify and block it.

I'm attaching the JS blob.
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