SymptomsTable of Contents:
What level of support is possible for Malware and Virus infection Issues?Dell’s standard practice has historically been to recommend a clean install of the Operating System (OS), once Malware or a Virus has been detected. This resolves an infection issue 100% of the time. Show
Under a ProSupport warranty, our Technical support should always investigate and identify the infection has taken place. They should attempt to get the computer to a usable state. So that they can run anti-virus scans or determine if a clean reinstall should take place due to the level of infection on the computer. Note: While some infections, are not serious and can be removed using the right tools. This information is provided for informational and educational purposes. Dell is not responsible for any loss of data from your computer, and you run these tools at your own choice and risk.
What is the difference between Malware and a virus?Malware, or malicious software, has become a catch-all term for several different types of infections. Some install themselves and create a simulated infection, corruption, or hardware failure, therefore tricking you into purchasing their product to resolve the issue. This type is known as hostage-ware, ransom-ware, or scare-ware. There are malware infections that redirect your browser to sites that the creator has chosen. Alternatively, they redirect to a website that they are compensated for, based on the number of hits the site receives. Sometimes these infections can hide your entire root drive and all your subdirectories. Sometimes they capture your personal information and communicate back to the creator of the infection. A virus, which has become a subset of malware, is a program that replicates and attaches itself to services or specific applications. Many malware payloads contain a virus file, such as a Trojan or a Worm, to help root the infection. Viruses were once an exclusive type of infection, but now they have been combined into infection packages of malware. Many malware packages incorporate rootkits to embed themselves into the kernel level of the OS, making them stealthy and more difficult to remove. Many items are often mistaken for computer infection. These can include tracking cookies, search hooks, or browser helper objects (BHOs). Although the presence of these can indicate infection, there must be an accompanying loader (EXE) file or kernel mode driver to present to confirm infection.
What are the most common symptoms of a Malware of Virus infection?Although today’s malware can contain multiple payloads, here are some of the most common signs of infection:
CauseMalware Detection/system usability stepsHere are some steps to perform to confirm infection:
Process Explorer example: Autoruns Example of malware infection
If positive malware identification is made, you can use one of the options below. Remember if it does not work, we can take you through a clean OS reinstall to resolve the issue.
Scanning SoftwareSometimes running a scanner is enough to remove most malware infections. You have most likely got an anti-virus program active on your computer, you should use another scanner for this check. If your current anti-virus software did not stop the infection, you cannot expect it to find the problem now. We would recommend trying a new program. Note: No anti-virus program can detect 100 percent of the millions of malware types and variants. There are two main types of anti-virus. Real-time anti-virus programsThey constantly watch for malware. On-demand scannersThey search for malware infections when you open the program manually and run a scan. Note: Ideally, only run one real-time anti-virus program on your computer at the one time. However, you can keep a few on-demand scanners stored to run scans with multiple programs. The best course of action is to use an on-demand scanner first and then follow up with a full scan by your real-time anti-virus program. There are several free and effective on-demand scanners available. You can find a list of the most common ones in the last section of this article.
ResolutionGeneral Removal GuideDisconnect your computer from the Internet and do not use it until you are ready to remove the malware. Think of it like cutting off all communications or putting a patient into a suspended state. Boot your computer into Safe Mode. Only the minimum required programs and services are loaded in this option. If any malware is set to startup when Windows starts, booting in safe mode should prevent it. To boot into Windows Safe Mode. Follow whichever guide below matches your Operating System (OS). This should bring up the Advanced Boot Options menu. Select Safe Mode with Networking and press the Enter key.
You will find that your computer runs faster in Safe Mode. If it does, it could be a sign that your computer has a malware infection. It could also mean that you have a lot of legitimate programs that start up with Windows. Delete your temporary files before starting any other steps. Doing this could speed up the virus scanning, but it clears the downloaded virus files and lessen the amount that the scanners have to check. You can do this through the Disk Cleanup utility or from the Internet options menu. Note: Are you using Windows 11, Windows 10? Instead of seeing the safe mode screens, does the computer give a prompt asking for the Windows 10 product code? Use the link below to troubleshoot Windows 10 Black Screens.
The following link takes you to an article with general steps to take you through a removal of the most often encountered Malware types:
Removing the InfectionThis guide uses Malwarebytes. I am using this piece of software as it is the software I am most used to and is freely available. You can find another program to do the same job if you prefer in Section 9 below. If you are following this guide, then Download Run the setup and follow the on-screen InstallShield wizard. Malwarebytes checks for updates and then launches the user interface (UI). Note: If it reports the database being outdated, choose Yes to download the updates and then click OK when prompted that they have been successfully installed. Keep the default scan option 'Perform quick scan' and click the Scan button. This program offers a full-scan option, however it is recommended that you perform the quick scan first. Depending on your computers specifications, the quick scan can take anywhere from 5 to 20 minutes. However, the full scan could take up to 60 minutes or more. You can see how many files or objects the software has already scanned. It shows how many of the files it has identified either as being malware or as having been infected by malware. If Malwarebytes disappears after it begins scanning and does not reopen, then the infection could be more serious and stopping the scanner from running. There are ways around this if you know the type of infection. However, you might be better off reinstalling Windows after backing up your files. It could be quicker, easier, and is guaranteed to resolve the infection. If Malwarebytes' quick scan comes up empty, it displays a text file with the scan results. If you still think that your computer may have acquired some malware, consider running a full scan with Malwarebytes. You can use other scanners - such as one of the others above. If Malwarebytes finds the infections, it shows a warning box. To view the suspect files, click the Scan Results button. It should automatically select the ones that are dangerous for removal. If you want to remove other detected items, select them as well. Click the Remove Selected button to get rid of the selected files. After removing the infections, Malwarebytes will open a log file listing the scan and removal results. Check to confirm that the anti-virus program successfully removed each item. Malwarebytes may also prompt you to restart your computer in order to complete the removal process, which you should do. Do your problems persist even after you have run the quick scan and it has found and removed unwanted files? Follow the advice above and run a full scan with Malwarebytes or with the other scanners mentioned earlier. If the malware appears to be gone, run a full scan with your real-time anti-virus program to confirm that result. If you cannot seem to remove the malware or if Windows is not working properly, you may have to reinstall Windows. See the appropriate link below, for a guide to suit your particular situation.
Other Removal OptionsOnce an infection is identified, you have to decide on your next step. There are several options for resolution:
If you can get online or use another computer with Internet, then you check out the following article and tools for more information: Links to Dell's Knowledge Base Articles
Link to Microsoft's online Tool
Links to the various publishers security software uninstall tools from the one source.
Useful Links to knowledge about the various security software programs that ship with Dell computers.
Publishers list of Scanner, Cleaner, and other Security UtilitiesNote: These are third-party tools that are not supported by Dell. We are not responsible for any results from using these tools. Dell agents cannot stay on the line and take you through using these tools on the computer. You use these tools at your own risk.
Prevent Re-InfectionTo minimize the risk of a repeat infection, pay attention to the steps below:
Always double check any online accounts such as online banking, webmail, email, and social networking sites. Look for suspicious activity and change your passwords, you cannot tell what info the malware might have passed on. If you have an automatic backup for your files, run virus scans on those backups. Confirm that it did not backup the infection as well. If virus scans are not possible such as online backups, most people decide to delete their old backups and save new versions. Keep your software current. Ensure that you update then frequently. If you receive any messages about this and are not sure of their validity, then always contact the company in questions support to clarify it.
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