Error 0020 on Windows Phone 7 IS VIRUS?

[Windows Central Question]

My dad had this weird error on his Motorola Mini with Windows Phone 7:

Error
SIM:0020

Which had only two options: OK Button and a "Finish" Button... I pressed Finish a couple of times and then a weird ADVERTISING appeared. It asked to sub to something. Again just two options: Accept button and a Finish Button. I pressed Finish and then a WEIRD Question appears:

Error?
YES
NO

I pressed yes and it got back to normal... I thinks there's a strange virus or something cause a couple days ago a friend got this error: Temp:0020 on iPhone 5s and got the same stuff...

Hope it won't subscribe to something that gets cash from the phone!
Be careful with weird messages, SMS, or anything. Hope to find something that explains this.

 

[Dusan Randj]

For God's sake, there aren't any viruses for WP and as of 8.1.1 there won't be any...