The original NYT report is here and the single line Malaysian connection,
The exchangers, the indictment said, “tended to be unlicensed money-transmitting businesses without significant government oversight or regulation, concentrated in Malaysia, Russia, Nigeria and Vietnam.”
First thought that came to mind - Ah Longs.
I am sure the government and/or Bank Negara will respond.
The Malaysian Insider may or may not have but readers please DO read the comments of the NYT report for an alternative view.