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Every site that had Coinhive running on it, either by the design of the site owner or at the whim of a cryptojacker, stopped mining Monero. (Also - 'the company was making in an estimated $250,000 per month' - crikey!) The site disappeared and the domain stopped resolving. That's it, job done, instant crypto!Īnd then Coinhive was gone. And that's all an attacker needed to do - include the Coinhive JS, add their key and if they wished, toggle a few configurations.

js file from and the setting of a 32-byte key.

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In that blog post I included the code Scott Helme had de-obfuscated which showed a very simple bit of JavaScript, really just the inclusion of a. I'll give you a perfect example of that last point: in Feb 2018 I wrote about The JavaScript Supply Chain Paradox: SRI, CSP and Trust in Third Party Libraries wherein someone had compromised a JS file on the Browsealoud service and injected the Coinhive script into it. The second problem is that due to the anonymous nature of cryptocurrency, every hacker and their dog wanted to put Coinhive on any sites they were able to run their own arbitrary JavaScript on. It might only be exploiting them a little bit (how much power can an in-browser JS cryptominer really draw?), but it still feels super shady. They're paying for the CPU cycles to put money into your pocket - ingenious! But there were two massive problems with this and the first one is probably obvious: it's a sleazy business model that (usually unknowingly) exploits people's electricity bills for the personal gain of the site operator. sorry - visitors - browsers then whilst they're sitting there reading your content, you're harvesting Monero coin on their machine. So, instead of serving ads you put a JavaScript based cryptominer on your victi. I'll come back to that shortly, let's return to the business model of Coinhive: However, it's now owned by me and it's just sitting there doing pretty much nothing other than serving a little bit of JavaScript. That's a link to the last snapshotted version on because if you go to today, you'll see nothing.

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You know how people don't like ads? Yeah, me either (at least not the spammy tracky ones that invade both your privacy and your bandwidth), but I also like free content on the web and therein lies the rub how do content producers monetise their work if they can't put ads on pages? Well naturally, you 'Monetize Your Business with Your Users' CPU Power' which was Coinhives's modus operandi. If, on the other hand, you're on this page because you're interested in reading about the illicit use of cryptomining on compromised websites and how through fortuitous circumstances, I now own and am doing something useful with it, read on.

Please don't use reviews as a support forum.If you've landed on this page because you saw a strange message on a completely different website then followed a link to here, drop a note to the site owner and let them know what happened. If the extracted audio file (AAC) is not working on your iTunes, use 'Conversion Tools' window to convert the file to MP3 format. The extraction capability of the extension improves a lot with FFmpeg installed.Ģ. Support for DASH video- and audio-only streams with auto muxing.ġ. Video conversion tools (mp3 Converter, M4A audio muxer, WebM audio muxer, and AAC audio extractor).Ħ. Get comprehensive information about currently opened YouTube video.ĥ.

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Download video subtitles in all available languages.Ĥ. Useful to listen to the downloaded audio files on MP3 players.ģ. Download YouTube videos in all available format (FLV, MP4, WebM, and 3GP)Ģ.

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It is also shipped with an offline tool to extract audio files out of FLV videos.ġ. For other formats, MP3 conversion is possible if FFmpeg is install. It also contains a pure JavaScript library to extract the original audio file out of FLV videos. Youtube Video and Audio Downloader is an open-source project, downloading Youtube videos (using Firefox download manager or a custom external download manager) in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice.

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