In the article, he mentions using Evilgrade to do the backdooring. If you click though the link, you can find the README, which lists a bunch of applications th

In the article, he mentions using Evilgrade to do the backdooring. If you click though the link, you can find the README, which lists a bunch of applications that Evilgrade supports seeding backdoored versions of http://www.infobyte.com.ar/down/isr-evilgrade-Readme.txt http://www.infobyte.com.ar/down/isr-evilgrade-Readme.txt He likely just enabled them all, or at least enabled several which are likely candidates for his target to download.