Backdoor:JS/WebShell.DH — WebShell Backdoor Removal Guide

Written by Wilbur Woodham
If you spectate the notification of Backdoor:JS/WebShell.DH detection, it seems that your system has a problem. All viruses are dangerous, with no exceptions. WebShell gives the cybercriminals an easy access to your system, or perhaps connects it to the botnet.
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Any malware exists with the only target – gain money on you1. And the developers of these things are not thinking of ethicality – they use all available ways. Stealing your personal data, getting the comission for the banners you watch for them, exploiting your PC to mine cryptocurrencies – that is not the full list of what they do. Do you like to be a riding horse? That is a rhetorical question.

What does the pop-up with Backdoor:JS/WebShell.DH detection mean?

The Backdoor:JS/WebShell.DH detection you can see in the lower right side is shown to you by Microsoft Defender. That anti-malware software is pretty good at scanning, but prone to be basically unreliable. It is unprotected to malware invasions, it has a glitchy interface and bugged malware removal capabilities. Thus, the pop-up which says about the WebShell is simply a notification that Defender has actually identified it. To remove it, you will likely need to make use of another anti-malware program.

Backdoor:JS/WebShell.DH found

Microsoft Defender: “Backdoor:JS/WebShell.DH”

The exact Backdoor:JS/WebShell.DH malware is a really undesirable thing. This malware is developed to be a sneaky intruder, which serves as a remote-access tool. When you provide someone remote access willingly, it is okay, however, WebShell will not ask you if you wish to provide it. After connecting to your computer, crooks are able to do whatever they want – grabbing your files, examining your messages, collecting personal information, et cetera. Backdoors commonly bring an additional stealer – the virus that is developed to collect all possible information about you. Nonetheless, much more prevalent use of the backdoors is setting up the botnet. After that, the network of attacked PCs may be used to conduct DDoS attacks or to inflate the vote results on various websites.

Backdoor Summary:

NameWebShell Backdoor
DetectionBackdoor:JS/WebShell.DH
DamageGain access to the operating system to perform various malicious actions.
SimilarSysjoker, Pcclient, Darkkomet, Bifrose, Ircbot, Patched, Win64 Sandcat, Msil Turtleloader
Fix ToolSee If Your System Has Been Affected by WebShell backdoor
Shortly about backdoors

Backdoors are viruses that may obtain both separated and incorporated shapes. Once you can uncover that a legit program from a reputable company has a functionality that makes it possible for someone to connect to your PC. Will it be somebody from the creators or a third party – no one knows. But the scandal when this aspect is detected in an official program is almost impossible to miss. There is also gossip that there is a hardware-based backdoor in Intel CPUs2.

Is Backdoor:JS/WebShell.DH dangerous?

As I have actually pointed out previously, non-harmful malware does not exist. And Backdoor:JS/WebShell.DH is not an exclusion. This backdoor does not deal a many damage exactly after it releases. Nevertheless, it will be a really bad surprise when a random forum or site in the Web will not let you in, because your IP-address is disallowed after the DDoS attack. But even if it is not critical for you – is it positive at all to realise that someone can easily access your computer, check out your conversations, open your files, and spectate what you do?

The spyware that is usually present as a supplement to the Backdoor:JS/WebShell.DH malware will be just one more reason to remove it as fast as you can. Nowadays, when users’ data is valued remarkably high, it is too illogical to grant the burglars such an opportunity. Even worse if the spyware will in some way handle to steal your financial information. Seeing zeros on your savings account is the most awful nightmare, in my judgement.

How did I get this virus?

It is difficult to trace the origins of malware on your PC. Nowadays, things are mixed, and distribution ways used by adware 5 years ago can be used by spyware these days. But if we abstract from the exact distribution tactic and will think of why it works, the reply will be pretty basic – low level of cybersecurity awareness. Individuals click on ads on weird websites, open the pop-ups they get in their browsers, call the “Microsoft tech support” assuming that the scary banner that states about malware is true. It is important to understand what is legit – to prevent misconceptions when trying to determine a virus.

Microsoft Tech Support Scam

Microsoft Tech Support Scam

Nowadays, there are two of the most common methods of malware spreading – bait e-mails and also injection into a hacked program. While the first one is not so easy to stay away from – you need to know a lot to understand a counterfeit – the second one is easy to solve: just do not utilize cracked programs. Torrent-trackers and various other sources of “totally free” applications (which are, exactly, paid, but with a disabled license checking) are really a giveaway place of malware. And Backdoor:JS/WebShell.DH is simply among them.

How to remove the Backdoor:JS/WebShell.DH from my PC?

Backdoor:JS/WebShell.DH malware is incredibly difficult to remove by hand. It stores its files in numerous places throughout the disk, and can get back itself from one of the parts. In addition, numerous alterations in the registry, networking settings and Group Policies are really hard to find and return to the original. It is better to use a specific tool – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for malware removal reasons.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated nearly every hour. In addition, it does not have such problems and weakness as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware ideal for clearing away malware of any form.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of WebShell the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
How to Remove Backdoor:JS/WebShell.DH Malware

Name: Backdoor:JS/WebShell.DH

Description: If you have seen a message showing the “Backdoor:JS/WebShell.DH found”, it seems that your system is in trouble. The WebShell virus was detected, but to remove it, you need to use a security tool. Windows Defender, which has shown you this message, has detected the malware. However, Defender is not a reliable thing - it is prone to malfunction when it comes to malware removal. Getting the Backdoor:JS/WebShell.DH malware on your PC is an unpleasant thing, and removing it as soon as possible must be your primary task.

Operating System: Windows

Application Category: Backdoor

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References

  1. Read about malware types on GridinSoft Threat encyclopedia.
  2. Gossip about the backdoor in Intel processors on Reddit.

About the author

Wilbur Woodham

I was a technical writer from early in my career, and consider IT Security one of my foundational skills. I’m sharing my experience here, and I hope you find it useful.

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