His very first try at conning a junior employee into taking part in his scheme was successful, and she didn't seem to blink an eye at being told to help him by downloading a "manuscript," which was actually a popular, commercially available spyware program that the attacker had modified for a silent install. Using this method, the installation would not be detected by any antivirus software. For some strange reason, antivirus manufacturers do not market products that will detect commercially available spyware.