The bank transfers, the credit card systems and all world remittance systems have all been captured by the bullies in the united states government. (That doesn't mean that the russian government are not bullies).
What the russians could and should do, is to establish a network of banks/exhanges in all countries totally disconnected from the current bank system, offering deposit accounts in rubles and renmimbi (and others) combined with market based exchanges for these currencies. For USD, only deposit and withdrawal of notes. Of course they would have to stop meddling with their exchange ratios.
That would take some of the power out of the USA bank hegemony.
This is in formation as an alternative to IMF & World Bank which are the backbone of trade domination => http://en.wikipedia.org/wiki/BRICS_Development_Bank