There are viruses that have managed to infiltrate computers without the victims knowing that they are there. They don’t work to cripple the computer but rather to quietly control it. Some of these viruses are true marvels of social engineering as they manage to do their thing quite accurately and systematically.

They unleash their power through sending spams that appear very legitimate and convincing. Fake offers are being brandished in a bid to make big money at the expense of unsuspecting receivers. They can be removed when detected but have the ability to transform themselves and return.