How harmful JS:Downloader-ZY [Trj] is?
JS:Downloader-ZY [Trj] is a nasty Trojan horse. When it invades into the target PC, JS:Downloader-ZY [Trj] performs lots of illegal activities like disable firewall settings, blocks security websites and downloads lots of executable and system files.
For its own benefit, JS:Downloader-ZY [Trj]will drop other sorts of malicious software onto the infected PC, such as spyware, malware and adware without the full consent of PC administrator. Malware like fake antivirus applications will scam money from users by cheating them to sign up and pay for their fake registered versions.
At the same time, JS:Downloader-ZY [Trj]Trojan horse may create many malicious files which will cause the program malfunction, and affect and modify compromised computers' important system files, for instance Windows registry entries. The changing of these system settings may offer a chance for other computer viruses and even the cyber crooks to invade into the infected PC more easily.