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.
Moreover, JS:Downloader-ZY [Trj]degrades the whole PC performance by eating up a lots of system resources in the background. The slow and sluggish performance frustrates the compromised user so much as it takes too much time for them to perform even the basic operations, and sometimes blue screen to death come out when users want to run some heavy applications. In a word, the PC performance is extremely hindered due to the presence of JS:Downloader-ZY [Trj]Trojan horse.
How to get rid of JS:Downloader-ZY [Trj]manually?
Step 1: Launch your PC into Safe Mode with Networking.
Restart your computer. As your computer restarts but before Windows launches, tap "F8" key constantly. Use the arrow keys to highlight the "Safe Mode with Networking" option, and then press ENTER.
Step 2: Stop all processes that related to this computer virus
Press Window+R keys together. In the dialogue box that pop-up, type into taskmgr and press OK.
Terminate all the malicious processes in the Window Task Manager.
Step3:Disable any suspicious startup items that are made by infections.
click start menu; type msconfig in the search bar; open System Configuration Utility; Disable all possible startup items generated.
Step4:Show all hidden files and clean all the malicious files about this virus
Click the Start button and choose Control Panel, clicking Appearance and Personalization, to find Folder Options then double-click on it.
In the pop-up dialog box, click the View tab and uncheck Hide protected operating system files (Recommended).
Clean all the malicious files about this computer virus as below.
Step5:Remove all the vicious registry entries as follows:
Open Registry Editor by pressing Window+R keys together and typing into Regedit, then pressing Enter.
Find out all harmful registry entries of the virus and delete all of them.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
Video on how to remove Trojan horse virus:
Method two: get rid of JS:Downloader-ZY [Trj] with Spyhunter automatic scan
If the manual guide is kinda difficult for you, please feel free to download automatic removal tool SpyHunter to drive the self-invited guest away.