now THAT\’S coding

Clicking on the link directs them to a site that attempts to download one or more trojans: customized versions of Zeus and its SpyEye and CarBerp variants that allow attackers to record Web visits and then inject HTML and JavaScript into the victim’s browser. The next time the victim visits their bank website, the trojans capture their credentials and launch a JavaScript that spoofs a request for a “security upgrade” from the site, offering to protect their mobile device from attack. The JavaScript captures their phone number and their mobile operating system information — which are used in the second level of Eurograbber’s attack.

With the phone number and platform information, the attacker sends a text message to the victim’s phone with a link to a site that downloads what it says is “encryption software” for the device. But it is, in fact, “Zeus in the mobile” (ZITMO) malware — a Trojan crafted for the Android and BlackBerry mobile operating systems that injects itself between the user and the mobile browser and SMS messaging software. With both devices now compromised, the malware waits for the victim to access a bank account, and then immediately transfers a percentage of the victim’s balance to an account set up by the criminals running the botnet.

The malware then intercepts the confirmation text message sent by the bank, forwarding it to the trojan’s command and control server via a relay phone number. The server uses the message to confirm the transaction and withdraw the money. The same process happens every time the victim logs into their bank account, gradually withdrawing money without alerting the user…


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