Nobody /bin/sh?

I see this in top and I was wondering if it is normal or not?

2297 nobody 0 0.0 0.0 sh -c echo "`uname -a`";echo "`id`";/bin/sh
2302 nobody 0 0.0 0.0 /bin/sh

Is this supposed to be there? Why is it a nobody process? If someone could let me know what this exactly is doing and if it's normal it would be apprecaited.

 

 

 

 

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