The EU and the U.S. have the standards in place through the accords of these international institutions to monitor and halt the flow of funds into their financial centers. But in order to be effective, more concerted efforts for coordination among jurisdictions, proper personnel training, and more transparent policing must be implemented. As long as the western countries remain complacent with the status quo, they cannot expect Russia's black market networks to go away. The international community must also start to more closely monitor transactions between Russia and tax havens from Cyprus to the South Pacific nation of Nauru in order to deal with illicit financial flows in and out of Russia. The institutions are in place to put a halt to Russia's illicit operations, but it will take the commitment of the EU, the US, and countries like Switzerland to step up and enforce these policies within their own borders. Otherwise, under tougher sanctions, these networks will get stronger and bigger.
The EU could start by training importers in Cyprus and London to spot misinvoicing, and expose the shadow corporations and financial firms that are well-established within EU jurisdictions. London could also more vigilantly monitor illicit financial flows by cracking down on Russian shadow banks and questionable firms incorporated within its boundaries.
Action against these black markets, paired with sanctions, will send a strong message to Russia that Europe is ready to get rid of Russian corruption within its borders.
Poor russia .... LoL