Sorry, these were not "Hackers" that put these files out there. Please learn your terminoligy, or buy a dictionary if you're getting paid to put words into print or online. You only expose how uneducated you are by making blatent mistakes like these. So you don't press on in ignorance, here's the American Heritage Dictionary definition: Hacker -

1. One who is proficient at using or programming a computer; a computer buff.
2. One who uses programming skills to gain illegal access to a computer network or file.
3. One who enthusiastically pursues a game or sport: a weekend tennis hacker.

None of those covers someone who purposefully misrepresents a file as something that it isn't (which in this case, would be a "trojan"), especially one which would be harmful. They haven't hacked into your system, YOU have, by running a program which you didn't know the origin of which doesn't do what it was claimed to do. No hacking involved.

You sir need to go back and read the article again.

Why? The author hasn't corrected their misuse of the word "Hacker". If you can't figure that out, perhaps YOU need to read the article again.