Ashari known as "The Silent Killer" by Malaysian media and fans had great dribbling skill with good vision and pace in the game.

Among his achievements with Terengganu is winning the 2011 Malaysia FA Cup and defeating Kelantan in the final on 11 June 2011.

In the 2012 Malaysia League Cup Final, he scored the opening goal for his team in a 2-1 loss to Negeri Sembilan.

[13] In November 2010, Ashari was called up to the Malaysia national squad by coach K. Rajagopal for the 2010 AFF Suzuki Cup.

Ashari scored 1 goal from outside penalty box for Malaysia against Indonesia in the first leg of the final to secure a 3–0 win, and helping Malaysia en route to win 4-2 on the aggregate the AFF Suzuki Cup for the first time in their history.