Space | UC Berkeley SETI Project Confirms First Candidate Signal
No, no one is attempting to contact us.
Basically, they've found a source of electromagnetic energy emanating within a particular section of the sky. It remains constant, within a particularly tight frequency band and, at this time, does not appear to be caused by any known astrophysical occurrence.
They're proceeding slowly, and are continuing to confirm observation from several other sources.
Should all other possible astrological (natural) sources be ruled out, it would leave only one other logical origin.