Do you know what GreatDefender is?
GreatDefender is yet another rogue anti-spyware program. GreatDefender makes use of many malicious and deceiving tactics to coerce unsuspecting computer users into purchasing the full version of GreatDefender. Hailing from the same rogueware family as RESpyWare, REAnti, KeepCop, SecureKeeper, SystemFighter, ProtectPcs and Apcprotect, GreatDefender should not be trusted! NOTE: The full version of GreatDefender is not able to detect or remove any type of computer viruses, spyware, malware or adware.
In non-techie terms:
GreatDefender is generally downloaded and automatically installed via Trojan infections, which tend to be dangerous computer Trojan horse infections. Fictitious messages and bogus system scans are usually tell-tell signs that a computer system has been infiltrated and infected with GreatDefender. Removal of GreatDefender is recommended to rid the infected system of all malicious actions and to reduce any further damage done to the PC.
Aliases: Great Defender, Great.Defender