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Silk Road bust demonstrates feds penetration of Deepnet

Antone Gonsalves | Oct. 8, 2013
Leader of website arrested by FBI, charged with conspiring to money launder and more.

By shutting down the notorious Silk Road criminal marketplace, federal law enforcement is succeeding at infiltrating the most sinister areas of the hidden Internet, experts say.

On Tuesday, the Federal Bureau of Investigation arrested in San Francisco Ross William Ulbricht, 29, alleged owner and mastermind of the infamous site, according to a complaint filed by the U.S. Attorney's Office in New York. Ulbricht, a.k.a. Dread Pirate Roberts, has been charged with conspiring to money launder, hack computers and traffic in narcotics.

Sellers on Silk Road primarily traded in illegal drugs with thousands of listings for marijuana, LSD, heroin, cocaine, methamphetamine and ecstasy. To a less extent, the site was also used in selling malware, exploit tools, stolen credit card numbers, fake driver's licenses, passports and social security cards. It also distributed child pornography and even offered hitmen-for-hire services.

Like many other criminal enterprises, the site operated on the Tor anonymity network, which directs traffic through a volunteer network of more than 3,000 relays that make it extremely difficult to trace Internet activity. While used by political activists to avoid government surveillance, Tor has also become a hiding place, called the Deepnet, for the vilest criminal activity.

There are indicators that the FBI is becoming more adept at penetrating the Tor shield. News media reported last month that the agency may have been behind a malware attack against Freedom Hosting, an ultra-anonymous hosting service suspected of allowing child pornography on its servers, according to Wired.

Silk Road's downfall appears to be linked to human error. Nicholas Weaver, a researcher at the International Computer Sciences Institute, told the security blog KrebsonSecurity, that court filings indicate Ulbricht failed to use encryption for all communications and administered Silk Road outside of Tor.

He also is alleged to have used his Gmail address in promoting Silk Road on an online forum. The contents of the email address were later subpoenaed by law enforcement.

In comparing the Silk Road and Freedom Hosting cases, the FBI appears to be making headway on two fronts when entering the darkest reaches of the Internet.

"That particular case (Freedom Hosting) is the use of technology with the sole intent of identifying individuals behind crime," Raj Samani, vice president and chief technology officer for McAfee in Europe, said.

"This particular case was less the technology, but more with regards to good police work and human error on the part of the individual."

Nevertheless, the FBI's ability to find Silk Road, make dozens of undercover purchases on the site and trace the site's use of the virtual currency Bitcoin for trading in goods and services, was impressive, Bogdan Botezatu, security researcher for Bitdefender, said.

 

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