The first leg will be held in Kuala Lumpur’s Bukit Jalil National Stadium between Malaysia and Vietnam.
The second leg will be held in Hanoi’s Mỹ Đình National Stadium four days later.
Faghani will be assisted by countrymen Mohammad Reza Mansouri and Reza Sokhandan.
The 2018 AFF Championship is the 12th edition of the AFF Championship, the football championship of nations affiliated to the ASEAN Football Federation (AFF), and the 6th under the name AFF Suzuki Cup.