excuse me.
I was browsing in a website. and after that, there is a pop-up like it 

```
[some text] <div id="extwaiimpotscp" style="display:none" v="{9225" f="ZXpreU1EUTNNamM4TFRBNU1UQXROW0ZpWWkxaVpZSTNMV0UzWmpKalpEWmpfakEwWW4wlQ==" q="b05a3bb7" c="57.45" i="60.47" u="10.30" s="19188318" w="false" m="BMe=" vn="yote2"></div>

```

is that XSS? and can I use it for steal cookies? and how to use?
and what is the name of this code?

[![This is screenshot of the popup](https://i.stack.imgur.com/1cdlA.png)](https://i.stack.imgur.com/1cdlA.png)