I tried to trace down the "article" which is being circulated by something called the World Socialist Network.

In New Straits Times I found an article (08/07/2014) describing damage to aircraft parts from a missile. It is in Malaysian, but Google translation says "experts" suggest the plane was shot down by a Sukhoi Su-25 fighter, quoting Novosti RIA (Russian News Service).
The article goes on to describe and post a picture of a circular hole in addition to fragmentation explosion damage on a piece of debris and suggest the plane was shot down by warplanes.

I went to the The Straits Times which has an English edition and is the premier English source in the region and did not find any mention of this. ANe article says nothing about damage particulars, and is without any speculation, but is devoted to calls for an international investigation (AFP service, July 18.)to determine cause.

On August 6, The New Straits Times said that a Dutch contractor will take over the search for flight MH 370, lost in the Indian Ocean. The search will start in September, and will cost an estimated $48 million dollars.

The airline has been taken over by the Malaysian government and trading in shares has been suspended.
The airline, which had a 5-star rating, will be reorganized.