This software monitored and reported the listening habits of the customer, and altered the operating system's access to their hardware. The remote access paths opened by the trojan were insecure, and could be exploited by other malicious software. They distributed roughly 22 million of these CDs.[3] In June 2006 Roger Duronio, a system administrator for UBS, was charged with using a logic bomb to damage the company's computer network, and with securities fraud for his failed plan to drive down the company's stock with activation of the logic bomb.[4][5] Duronio was later convicted and sentenced to 8 years and 1 month in prison, as well as a $3.1 million restitution to UBS.[6] On 20 March 2013, in an attack launched against South Korea, a logic bomb struck machines and "wiped the hard drives and master boot records of at least three banks and two media companies simultaneously." [7][8] Symantec reported that the malware also contained a component that was capable of wiping Linux machines.[9][10]