looks like a new SOAP vulnerability was added to Mirai. Here come a few million more mirai bots.
If you are serious about infosec certifications, check out GIAC (http://www.giac.org) . The certs are very applied and test practical knowledge (e.g. they are open book... no need to test how well you can memorize stuff). CISSP is good to get you started in the field.
There are running jobs. Why don't you go chase them?