Deal Dropper virus is a newborn cyber threat belonging to the adware virus family. It slips into victims PCs for malicious purpose. Usually the victims may get this Deal Dropper infection when they open an infected files coming from an e-mail attachment and removable disk. Once it gets installed onto the infected PC, it can change and hide its position in the infected PC to protect itself. That is why most of the advanced anti-virus programs can not handle this Trojan horse well.