Hello Edina,
So, if you mean that so:41.63%/38.01/91.30, I am not sure what that is but it’s definitely something inside of metatrader. It is not a virus though.
To check what robot has made the trade, you will need to check the account inside of metatrader in a PC by clicking in the Account History tab, right clicking on the Profit/Loss section and then you should see a pop up menu that has some options. From there, you need to click on where it says comment so that it gets a tick and that will show you the magic number of the robot or even a comment that will display the name of the robot.
Hope this helped!
If you have any more questions, let me know!
Kind Regards,
Nikos