Pup.optional.defaulttab is a newest Trojan horse that has attacked thousands of computers all around the world. The possibilities to be infected with this virus may include freeware downloads, E-mail attachments, hacked websites or forum, etc. Antivirus software may detect this virus but can never handle it successfully. Once installed,
Pup.optional.defaulttab will do much harm on the infected machine. For example, it slows down the contaminated PC notably via taking up high percentage of system resource. Besides, it also gives rise to Blue Screen death, random browser redirections, system crash or frozen issues. Worse still, it has the intimate relationship with remote hackers and allows them to access your machine and pilfer confidential information for evil intention. You have to get rid of Pup.optional.defaulttab virus as well as its bundled threats as quickly as possible before further damages from it.
