In July of 2012, FBI contractor Pradeep Lal contacted the customer support department of the Italian company Hacking Team, a maker of spyware for law enforcement and intelligence agencies worldwide. Lal needed help; he had used Hacking Team software to break into and monitor an investigative target’s computer, but the monitoring wasn’t working as well as Lal expected. It reported what addresses his target visited in normal web browsers, but not when his target used Tor Browser, software designed to mask sensitive web surfing.
Lal described his problem succinctly, complaining on Hacking Team’s customer website that the company’s “URL collector does not collect web traffic on TOR browser,” according to a large trove of emails and other documents recently obtained by one or more computer hackers. He then outlined the steps someone might take to reproduce the problem he encountered with Hacking Team spyware:
download TOR browser bundle. Surf web through TOR browser. Infect the target with an agent with www collector enabled. WWW traffic is not collect when target surfs through TOR browser.