The new leader of Islamic State of Iraq and Syria (ISIS) terror group has been revealed as Iraqi Amir Mohammed Abdul Rahman al-Mawli al-Salbi.

According to international reports, two intelligence services said al-Salbi took over from Abu Bakr al-Baghdadi after the terrorist blew himself up in October last year.

Al-Salbi, who helped found ISIS, brought in brutal Sharia Law in Iraq and Syria, led the enslavement of the Yazidi and has operated across the world.

The terrorist was reportedly made leader just hours after al-Baghdadi, 48, died, despite his named being reported as Abu Ibrahim al-Hashimi al-Quraishi.

Spies have unmasked al-Salbi over the past three months and paint a picture of a hardened extremist similar to al-Baghdadi, according to The Guardian.

The Mosul-born leader is believed to be one of the most influential ideologues left in ISIS's depleted ranks and is one of the last non-Arabs.

Al-Salbi was born in Tal Afar, a city near Mosul, to Iraqi Turkmen and went on to study Sharia Law at the University of Mosul.

After a background as an Islamic scholar, he rose the ranks in the terror organization, and tried to justify an attempted genocide on the Yazidi people.  

He is also known as 'The Professor' and 'The Destroyer', and took over operations from al-Baghdadi from July after the leader struggled with his health after an airstrike.

The two became friends while caged in US Camp Bucca detention center in Umm Qasr, Iraq.

The Americans put a $5million bounty on al-Salbi's head - as well as two other senior terrorists - before al-Baghdadi died.