USPS.gov Website Infected with Blackhole Exploit Kit

"United States Postal Service website (http://ribbs.usps.gov) has been infected with the Blackhole Exploit kit. As we've discussed previously, the Blackhole Exploit kit, a commercial exploit kit developed by Russian hackers, is being seen in an increasing number of attacks. Last week, we reported on how it had been used to infect Worldfest, a Houston, Texas music festival and this week, it has penetrated the website of an independent US government agency, namely that of the postal service. RIBBS stands for Rapid Information Bulletin Board System and deals with Intelligent Mail services, such as barcodes that allow for better tracking and logistics. As with similar infections, the attack follows numerous phases, each being hosted on a separate domain, with each leveraging various obfuscation techniques to hide the attack. Here we will walk through the various phases to detail the attack."

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