Behavior:Win32/FakeSysdef.D — Virus Removal Guide

Written by Wilbur Woodham
If you see the message reporting that the Behavior:Win32/FakeSysdef.D was located on your computer, or in times when your computer functions too slowly and also provides you a lot of headaches, you absolutely make up your mind to check it for Fake System Defragmenter and also tidy it in a proper solution. Today I will explain to you just how to do it.
GridinSoft Anti-Malware Review
It is better to prevent, than repair and repent!
When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
Gridinsoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | 10% Off Coupon
Subscribe to our Telegram channel to be the first to know about news and our exclusive materials on information security.
Trojan:Win32/FakeSysdef, originally dispersed as an application called HDD Defragmenter hence the name FakeSysdef or Fake System Defragmenter, is a Trojan targeting Microsoft Windows operating system that was first documented in late 2010.

Most of Fake System Defragmenter are made use of to earn a profit on you. The criminals clarifies the range of malicious programs to take your charge card information, electronic banking qualifications, and also other data for illegal functions.

Threat Summary:

NameFake System Defragmenter Trojan
DetectionBehavior:Win32/FakeSysdef.D
DetailsTrojan:Win32/FakeSysdef, originally dispersed as an application called HDD Defragmenter hence the name FakeSysdef or Fake System Defragmenter, is a Trojan targeting Microsoft Windows operating system that was first documented in late 2010.
Fix ToolSee If Your System Has Been Affected by Fake System Defragmenter Trojan

Kinds of viruses that were well-spread 10 years ago are no more the resource of the problem. Currently, the problem is a lot more obvious in the areas of blackmail or spyware. The problem of taking care of these issues calls for new solutions and different approaches.

Does your antivirus regularly report about the “Fake System Defragmenter”?

If you have actually seen a message suggesting the “Behavior:Win32/FakeSysdef.D found”, after that it’s an item of great information! The pc virus “Behavior:Win32/FakeSysdef.D” was detected and, probably, deleted. Such messages do not mean that there was an actually active Fake System Defragmenter on your device. You could have merely downloaded a data which contained Behavior:Win32/FakeSysdef.D, so your antivirus software program immediately erased it before it was launched and triggered the problems. Alternatively, the destructive script on the infected internet site can have been detected and stopped prior to triggering any troubles.

Behavior:Win32/FakeSysdef.D found

Microsoft Defender: “Behavior:Win32/FakeSysdef.D”

In other words, the message “Behavior:Win32/FakeSysdef.D Found” throughout the typical use your computer system does not mean that the Fake System Defragmenter has actually finished its objective. If you see such a message after that maybe the proof of you checking out the infected page or filling the destructive file. Attempt to prevent it in the future, however do not fret excessive. Experiment with opening up the antivirus program and examining the Behavior:Win32/FakeSysdef.D detection log file. This will offer you even more details about what the exact Fake System Defragmenter was spotted and also what was especially done by your anti-virus software program with it. Naturally, if you’re not confident enough, describe the manual scan– anyway, this will be handy.

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

If your system works in an extremely sluggish way, the websites open in an odd way, or if you see ads in places you’ve never ever expected, it’s feasible that your system obtained infected as well as the infection is currently active. Spyware will track all your activities or reroute your search or home pages to the areas you don’t wish to visit. Adware may infect your internet browser and also also the entire Windows OS, whereas the ransomware will attempt to block your system and also demand a remarkable ransom money quantity for your very own documents.

Irrespective of the kind of the issue with your PC, the initial step is to scan it with Gridinsoft Anti-Malware. This is the most effective app to spot and also cure your PC. Nevertheless, it’s not a basic antivirus software. Its objective is to battle modern dangers. Today it is the only application on the market that can simply clean the PC from spyware as well as various other infections that aren’t also identified by normal antivirus software programs. Download, set up, and run Gridinsoft Anti-Malware, then scan your PC. It will lead you with the system cleanup process. You do not need to get a permit to clean your PC, the initial license offers you 6 days of an entirely free test. Nonetheless, if you wish to protect on your own from permanent dangers, you probably need to take into consideration purchasing the license. In this manner we can guarantee that your computer will no more be infected with viruses.

How to scan your PC for Behavior:Win32/FakeSysdef.D?

To scan your device for Fake System Defragmenter as well as to get rid of all identified malware, you need to get an antivirus. The current variations of Windows include Microsoft Defender — the integrated antivirus by Microsoft. Microsoft Defender is usually quite great, nevertheless, it’s not the only point you need. In our viewpoint, the best antivirus service is to utilize Microsoft Defender in the mix with Gridinsoft.

In this manner, you may get a complicated protection against the range of malware. To check for pc virus in Microsoft Defender, open it and begin a new check. It will extensively scan your system for trojans. And, of course, Microsoft Defender operates in the background by default. The tandem of Microsoft Defender and Gridinsoft will certainly establish you free of many of the malware you may ever run into. On a regular basis scheduled scans might additionally secure your system in the future.

Use Safe Mode to fix the most complex Behavior:Win32/FakeSysdef.D issues.

Safe mode

If you have Behavior:Win32/FakeSysdef.D type that can rarely be removed, you might require to consider scanning for malware beyond the common Windows functionality. For this purpose, you require to start Windows in Safe Mode, therefore preventing the system from loading auto-startup items, possibly consisting of malware. Start Microsoft Defender checkup and afterward scan with Gridinsoft in Safe Mode. This will certainly help you to find the infections that can not be tracked in the regular mode.

Use Gridinsoft to remove Fake System Defragmenter and other junkware.

GridinSoft Anti-Malware

It’s not sufficient to simply use the antivirus for the security of your computer. You require to have much more detailed antivirus app. Not all malware can be identified by regular antivirus scanners that primarily search for virus-type threats. Your system may be full of “trash”, for example, toolbars, browser plugins, questionable search engines, bitcoin-miners, and also other types of unwanted programs used for making money on your lack of experience. Be cautious while downloading and install software on the web to avoid your gadget from being full of unwanted toolbars as well as various other junk information.

Nevertheless, if your system has currently obtained a certain unwanted application, you will certainly make your mind to erase it. The majority of the antivirus programs are uncommitted concerning PUAs (potentially unwanted applications). To eliminate such programs, I recommend buying Gridinsoft Anti-Malware. If you use it occasionally for scanning your computer, it will aid you to eliminate malware that was missed by your antivirus software.

Frequently Asked Questions

🤔 How Do I Know My Windows 10 PC Has Behavior:Win32/FakeSysdef.D?

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 Behavior:Win32/FakeSysdef.D infection, please download the GridinSoft Anti-Malware that I recommended. Also, you can always ask me in the comments for getting help.

I need your help to share this article.

It is your turn to help other people. I have written this guide to help people like you. You can use buttons below to share this on your favorite social media Facebook, Twitter, or Reddit.
Wilbur Woodham
How to Remove Behavior:Win32/FakeSysdef.D Malware

Name: Behavior:Win32/FakeSysdef.D

Description: If you have seen a message showing the “Behavior:Win32/FakeSysdef.D found”, then it’s an item of excellent information! The pc virus Fake System Defragmenter was detected and, most likely, erased. Such messages do not mean that there was a truly active Fake System Defragmenter on your gadget. You could have simply downloaded and install a data that contained Behavior:Win32/FakeSysdef.D, 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: Trojan

Sending
User Review
4 (11 votes)
Comments Rating 0 (0 reviews)

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.

Leave a Reply

Sending