Criminals trying to get their hands on victims’ cryptocurrency stashes are trying out various approaches. The latest one includes equipping malware with Man-in-the-Browser capabilities so they can hijack online accounts and perform fraudulent transactions on the fly.
Injecting malicious scripts into target sites
Since the beginning of the year, SecurityScorecard researchers have observed two botnets – powered by the Zeus Panda and Ramnit malware families – that are after Coinbase.com accounts and Blockchain.info wallets.
The malware, among other things, is capable of detecting when the user visits those two websites and to silently inject an obfuscated script into them, which changes the content of the landing page.
When the target is Coinbase, the script makes it so that the Enter key for the email and password input fields won’t work, and creates a new button and superimposes it over the “Sign In” button. Thus, when the victims enter the login credentials and presses the latter, they believe they are logging in.
They are actually not.
