Originally Posted by Totenkopf
Tried a google search on this. Appears that the parent organization was the NKO (People's Commisariats of Defense) and NKF (Naval version apparently). Wasn't sure if Beriya or someone named Abakumov (its appointed head in '43) were responsible for SMERSH (Stalin, perhaps?). Mind you, this is from wiki, so can't attest for any accuracy here.
NKO and NKF were the forerunners of the GRU, but Beria who created it worked for the KGB offshoot of that time and worked as an advisor to the military Intelligence of the time. What is Beria's first name? Got a quarter Whatever so far.