JSAgent.HTM Virus – How To Remove

JSAgent.HTM Trojan

In this tutorial we will cover how to remove JSAgent.HTM from windows manually

  •  Trojans
  • What is JSAgent.HTM
  • How to Prevent Trojan attacks
  • JSAgent.HTM Summary
  • How was I infected with JSAgent.HTM
  • How To Remove JSAgent.HTM
  • Ask for Help

Trojans are perhaps the most well-known as notorious type of malicious code out there, and with good reason, too. Namely, these viruses are responsible for anywhere between 75% and 90% of all malware attacks that occur over the internet. This also means that their numbers far exceed those of other types of computer viruses. This can lead to Antiviruses detecting it as Malicious domain request 22

What is JSAgent.HTM?

JSAgent.HTM is a Trojan horse virus that can infect most operating systems. JSAgent.HTM is among the most recently discovered variants of this type and should be removed immediately from the infected device.

JSAgent.HTM Example

This just goes to show that Trojan horses are the most widely preferred form of malware by hackers, and there are several factors that are responsible for that. For one, these viruses are incredibly versatile. They can be programmed to fulfill a large range of different tasks on behalf of their creators, and this, to a greater extent, sets them apart from, say, ransomware, spyware, rootkits and various other kinds of harmful pieces of programming. Many times it can access the settings of you chrome browser and change search engines like Search Marquis

In addition to that, Trojans are also notorious for their stealth. Their infections rarely have any symptoms that would tip their victims off about their presence. And this allows them to carry out their agenda without facing interruption and risking being exposed.

On the other hand, however, depending on the types of activities that variants like JSAgent.HTM may be running on your PC, they may cause certain symptoms. For example, sometimes a Trojan horse infection may result in frequent BSoD crashes, system sluggishness, involuntary cursor movements and other odd behavior. And although these may very well be signs of a number of other issues, they are certainly something that needs further investigating to determine the underlying causes.

What’s important, however, is that once you have discovered JSAgent.HTM in your system, you are halfway through the process of removing it. All you need to do now is actually do the removing itself, which can be taken care of by closely following the instructions in the removal guide we’ve included just below the current post. And if for whatever reason you don’t feel like you want to do this manually, there is a professional malware removal tool available here as well. With its help, JSAgent.HTM should be gone in a matter of minutes and your system will be Trojan-free once again. 

How to avoid future attacks

Having a functioning, well-maintained (i.e. updated) antivirus system is crucial to your system’s safety – no questions asked. But you can greatly aid your computer by not seeking trouble and avoiding potential sources of malware and Trojans like JSAgent.HTM in particular.

There are many ways in which you may have landed this infection, but the most common ones include spam messages, infected downloadable content (read torrents, pirated content, etc.) and malicious online ads. The latter are especially easy to avoid by just staying away from any and all web ads in general. And filtering the type websites you visit and especially those that you download things from should require the use of your common sense and not much else. As for spam messages, look out for suspicious emails or social media messages that contain attachments or links.

JSAgent.HTM Summary:

Danger Level High (JSAgent.HTM Ransomware encrypts all types of files)
SymptomsJSAgent.HTM Ransomware is hard to detect and aside from increased use of RAM and CPU, there would barely be any other visible red flags.
Distribution Method Most of the time, Trojans get distributed through spam e-mails and social network messages, malicious ads, shady and pirated downloads, questionable torrents and other similar methods.

Remove JSAgent.HTM Virus Guide

1: Preparations

Note: Before you go any further, we advise you to bookmark this page or have it open on a separate device such as your smartphone or another PC. Some of the steps might require you to exit your browser on this PC.

2: Task Manager

Press Ctrl + Shift + Esc to enter the Task Manager. Go to the Tab labeled Processes (Details for Win 8/10). Carefully look through the list of processes that are currently active on you PC.

If any of them seems shady, consumes too much RAM/CPU or has some strange description or no description at all, right-click on it, select Open File Location and delete everything there.

Also, even if you do not delete the files, be sure to stop the process by right-clicking on it and selecting End Process.

3: IP related to JSAgent.HTM

Go to c:\windows\system32\drivers\etc\hosts. Open the hosts file with notepad.

Find where it says Localhost and take a look below that. 

hosts_opt (1)

If you see any IP addresses there (below Localhost) send them to us here, in the comments since they might be coming from the JSAgent.HTM.


4: Disable Startup programs

Re-open the Start Menu and type msconfig.

Click on the first search result. In the next window, go to the Startup tab. If you are on Win 10,  it will send you to the Startup part of the task manager instead, as in the picture:

If you see any sketchy/shady looking entries in the list with an unknown manufacturer or a manufacturer name that looks suspicious as there could be a link between them and JSAgent.HTM , disable those programs and select OK.

5: Registry Editor

Press Windows key + R and in the resulting window type regedit.

Now, press Ctrl + F and type the name of the virus.

Delete everything that gets found. If you are not sure about whether to delete something, do not hesitate to ask us in the comments. Keep in mind that if you delete the wrong thing, you might cause all sorts of issues to your PC.

6: Deleting potentially malicious data – JSAgent.HTM

Type each of the following locations in the Windows search box and hit enter to open the locations:






Delete everything you see in Temp linked to JSAgent.HTM VirusAbout the other folders, sort their contents by date and delete only the most recent entries. As always, if you are not sure about something, write to us in the comment section.

Daniel Sadakov has a degree in Information Technology and specializes in web and mobile cyber security. He harbors a strong detestation for anything and everything malicious and has committed his resources and time to battling all manners of web and mobile threats. He has founded MobileSecurityZone.com, a website dedicated to covering the top tech stories and providing useful tips for the everyday user, in an effort to reach and help more people.

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