Unknown phone call tried to access root

I received a phone call on my phone yesterday afternoon from the number +162599121 which tried to gain root access to something called data center on the phone. I didnt know what it was but I allowed it to pass through, though i did not pick the call.
Then when I got up this morning I saw this on the phone.



By any chance are these two related? Did some googling and found out that other people are also getting this but no one seems to know what it is. I'm from singapore running a rooted, but completely stock unbranded Samsung LSE ROM (Singapore CSC) and Speedmod kernel.