Several Web sites selling made-to-order Trojan horses to hackers have been shut down, the two cooperating security companies who led the investigation said Wednesday. U.S.-based RSA Security and Spain’s Panda Software collaborated in the effort to identify, locate, and shutter five sites. Three were marketing la carte Trojans for launching targeted identity theft attacks against users of specific financial institutions, while two were sites where the buyers could monitor the infections the malware caused. Full Story