Hackers are targeting users of the cryptocurrency exchange Poloniex, with two credential-stealing apps that masquerade as official mobile apps for the service.

ESET researchers discovered them on Google Play, built to not only harvest Poloniex login credentials, but also to trick victims into making their Gmail accounts accessible.

Poloniex is one of the world’s leading cryptocurrency exchanges with more than 100 cryptocurrencies in which to buy and trade,” the researchers said, in a blog. “With all the hype around cryptocurrencies, cyber-criminals are trying to grab whatever new opportunity they can—be it hijacking users’ computing power to mine cryptocurrencies via browsers or by compromising unpatched machines, or various scam schemes utilizing phishing websites and fake apps.

Both apps work the same way: First, they display a bogus screen requesting Poloniex login credentials, which are then sent on to the attackers. With the logins in hand, attackers can carry out transactions on the user’s behalf, change their settings or even lock them out of their account by changing their password.

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