Backdoor:PHP/Webshell.PF — Virus Removal Guide

If you see the message reporting that the Backdoor:PHP/Webshell.PF was found on your Windows PC, or in times when your computer works too slow as well as provides you a lot of migraines, you most definitely compose your mind to check it for Webshell as well as tidy it in an appropriate way. Right now I will certainly tell to you just how to do it.
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The simple backdoor that written in PHP.

Webshell backdoor is an illegal tool to gain access to a server or computer bypassing the security mechanisms of the system.

Typically, attackers create a backdoors to gain access to the operating system to perform various actions. This can be stealing passwords and credit card numbers (aka spyware), installing ransomware, or cryptocurrency miners.

Webshell backdoor is often installed as part of an exploit. And in some cases, the backdoor enters the computer as a result of a previous attack.

Webshell is often difficult to detect, and detection methods vary greatly depending on the version of the malware. In some cases, antivirus software can detect a backdoor. In other cases, security professionals may need to use specialized tools to detect backdoors or use a protocol monitoring tool to inspect network packets.

Name Webshell Backdoor
Detection Backdoor:PHP/Webshell.PF
Damage Gain access to the operating system to perform various malicious actions.
Similar Hacktack, Bot 37463, Msil Vigorf, Flacher, Theefle 1, Js C99shell, Msil Baldr, Elfrit
Fix Tool See If Your System Has Been Affected by Webshell backdoor

Types of viruses that were well-spread 10 years ago are no more the source of the problem. Currently, the problem is much more evident in the locations of blackmail or spyware. The difficulty of repairing these issues requires different softwares and also new techniques.

Does your antivirus regularly report about the “Webshell”?

If you have actually seen a message showing the “Backdoor:PHP/Webshell.PF found”, then it’s a piece of excellent news! The infection “Backdoor:PHP/Webshell.PF” was detected and, probably, erased. Such messages do not suggest that there was a really energetic Webshell on your tool. You might have merely downloaded and install a data that contained Backdoor:PHP/Webshell.PF, so your antivirus software program automatically erased it before it was launched and triggered the problems. Conversely, the destructive script on the infected website might have been discovered and also protected against before causing any troubles.

Backdoor:PHP/Webshell.PF found

Microsoft Defender: “Backdoor:PHP/Webshell.PF”

In other words, the message “Backdoor:PHP/Webshell.PF Found” throughout the common use of your computer system does not indicate that the Webshell has actually completed its mission. If you see such a message after that maybe the proof of you seeing the infected page or filling the harmful data. Try to avoid it in the future, yet do not bother way too much. Explore opening the antivirus program and examining the Backdoor:PHP/Webshell.PF discovery log file. This will certainly offer you more details regarding what the specific Webshell was spotted as well as what was particularly done by your anti-virus software with it. Of course, if you’re not confident sufficient, describe the hands-on scan– anyway, this will certainly be valuable.

How to scan for malware, spyware, ransomware, adware, and other threats.

If your computer works in an extremely sluggish way, the web pages open in a weird fashion, or if you see ads in the position you’ve never expected, it’s possible that your computer obtained infected as well as the infection is currently active. Spyware will certainly track all your activities or redirect your search or home pages to the locations you don’t want to check out. Adware may infect your internet browser and even the entire Windows OS, whereas the ransomware will try to obstruct your system and also require a remarkable ransom money quantity for your very own files.

Irrespective of the sort of trouble with your PC, the initial step is to check it with Gridinsoft Anti-Malware. This is the most effective app to find and cure your computer. Nevertheless, it’s not a basic antivirus software program. Its objective is to fight modern risks. Today it is the only application on the market that can just cleanse the PC from spyware and also various other viruses that aren’t also found by regular antivirus programs. Download, set up, as well as run Gridinsoft Anti-Malware, then scan your PC. It will lead you via the system cleanup procedure. You do not have to buy a license to cleanse your PC, the preliminary certificate provides you 6 days of an entirely free test. Nevertheless, if you want to secure yourself from long-term risks, you probably require to consider purchasing the license. This way we can assure that your system will certainly no longer be infected with infections.

How to scan your PC for Backdoor:PHP/Webshell.PF?

To examine your system for Webshell and also to remove all detected malware, you need to find an antivirus. The current variations of Windows include Microsoft Defender — the integrated antivirus by Microsoft. Microsoft Defender is generally fairly great, however, it’s not the only thing you want to have. In our opinion, the very best antivirus remedy is to make use of Microsoft Defender in union with Gridinsoft.

In this manner, you may obtain complex defense against a variety of malware. To look for pc virus in Microsoft Defender, open it and also begin fresh scan. It will extensively check your PC for viruses. And also, certainly, Microsoft Defender works in the background by default. The tandem of Microsoft Defender and Gridinsoft will certainly establish you free of many of the malware you could ever run into. Frequently arranged scans may also shield your device in the future.

Use Safe Mode to fix the most complex Backdoor:PHP/Webshell.PF issues.

Safe mode

If you have Backdoor:PHP/Webshell.PF type that can rarely be eliminated, you may require to think about scanning for malware past the common Windows functionality. For this function, you require to start Windows in Safe Mode, therefore preventing the system from loading auto-startup items, potentially including malware. Start Microsoft Defender examination and then scan with Gridinsoft in Safe Mode. This will assist you discover the viruses that can’t be tracked in the routine mode.

Use Gridinsoft to remove Webshell and other junkware.

GridinSoft Anti-Malware

It’s not sufficient to merely use the antivirus for the safety and security of your system. You require to have much more detailed antivirus app. Not all malware can be spotted by typical antivirus scanners that largely search for virus-type hazards. Your computer may have lots of “junk”, for instance, toolbars, web browser plugins, questionable internet search engines, bitcoin-miners, and also other types of unwanted programs used for making money on your inexperience. Be cautious while downloading and install programs on the web to avoid your device from being filled with unwanted toolbars and various other scrap data.

However, if your system has currently got a specific unwanted application, you will certainly make your mind to delete it. The majority of the antivirus programs are do not care regarding PUAs (potentially unwanted applications). To remove such software, I suggest purchasing Gridinsoft Anti-Malware. If you use it periodically for scanning your system, it will certainly help you to eliminate malware that was missed by your antivirus program.

Frequently Asked Questions

🤔 How Do I Know My Windows 10 PC Has Backdoor:PHP/Webshell.PF?


There are many ways to tell if your Windows 10 computer has been infected. Some of the warning signs include:

  • Computer is very slow.
  • Applications take too long to start.
  • Computer keeps crashing.
  • Your friends receive spam messages from you on social media.
  • You see a new extension that you did not install on your Chrome browser.
  • Internet connection is slower than usual.
  • Your computer fan starts up even when your computer is on idle.
  • You are now seeing a lot of pop-up ads.
  • You receive antivirus notifications.

Take note that the symptoms above could also arise from other technical reasons. However, just to be on the safe side, we suggest that you proactively check whether you do have malicious software on your computer. One way to do that is by running a malware scanner.

🤔 How to scan my PC with Microsoft Defender?


Most of the time, Microsoft Defender will neutralize threats before they ever become a problem. If this is the case, you can see past threat reports in the Windows Security app.

  1. Open Windows Settings. The easiest way is to click the start button and then the gear icon. Alternately, you can press the Windows key + i on your keyboard.
  2. Click on Update & Security
  3. From here, you can see if your PC has any updates available under the Windows Update tab. This is also where you will see definition updates for Windows Defender if they are available.
  4. Select Windows Security and then click the button at the top of the page labeled Open Windows Security.

    Windows Security

  5. Select Virus & threat protection.
  6. Select Scan options to get started.

    Windows Security Scan options

  7. Select the radio button (the small circle) next to Windows Defender Offline scan Keep in mind, this option will take around 15 minutes if not more and will require your PC to restart. Be sure to save any work before proceeding.
  8. Click Scan now

If you want to save some time or your start menu isn’t working correctly, you can use Windows key + R on your keyboard to open the Run dialog box and type “windowsdefender” and then pressing enter.

From the Virus & protection page, you can see some stats from recent scans, including the latest type of scan and if any threats were found. If there were threats, you can select the Protection history link to see recent activity.

If the guide doesn’t help you to remove Backdoor:PHP/Webshell.PF infection, please download the GridinSoft Anti-Malware that I recommended. Also, you can always ask me in the comments for getting help.

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Wilbur Woodham
How to Remove Backdoor:PHP/Webshell.PF Malware

Name: Backdoor:PHP/Webshell.PF

Description: If you have seen a message showing the “Backdoor:PHP/Webshell.PF found”, then it’s an item of excellent information! The pc virus Webshell was detected and, most likely, erased. Such messages do not mean that there was a truly active Webshell on your gadget. You could have simply downloaded and install a data that contained Backdoor:PHP/Webshell.PF, so Microsoft Defender automatically removed it before it was released and created the troubles. Conversely, the destructive script on the infected internet site can have been discovered as well as prevented prior to triggering any kind of issues.

Operating System: Windows

Application Category: Backdoor

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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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