Pup.optional.mysearchdial.a is categorized as a stubborn and harmful Trojan virus which has newly designed by the cyber criminals to compromise targeted computer. It enters through downloading freeware or shareware, visiting pornographic sites, spam e-mails attachments or peer to peer file sharing and many other sources. Once Pup.optional.mysearchdial.a enters without your permission, it will take control of your homepage settings, modify your registry entries, or redirect your browser to other unwanted sites. Moreover, it will bring other additional threats such as spyware, malware, virus, keylogger or rootkit etc. which gets installed onto your system through backdoor. Furthermore, Pup.optional.mysearchdial.a will steal your all personal or financial information such as bank details, credit card details or passwords etc. after collecting all information it will send it to the remote hackers. So, there is no doubt that, because of this type Trojan virus, your computer will not work normally anymore. BSOD, freezes, crashes, Internet connection failure and snail-like running speed become common problems. What’s worse, if you don’t get rid of Pup.optional.mysearchdial.a timely, this nuisance will endanger your privacy and finally destroy the entire system. Hence, it is highly recommended to delete Pup.optional.mysearchdial.a from the infected computer to avoid any further damages.