PUP.Optional.PullUpdate.A

PUP.Optional.PullUpdate.A is deemed as potentially unwanted program that performs malicious actions once installed on the computer. This detection by Malwarebytes Anti-Malware program is given to specific software that user may optionally install together with third-party application. However, due to lack of notification during the install process, PUP.Optional.PullUpdate.A often gets into the PC without user’s knowledge. Thus, you may see unwanted program called PullUpdate on the computer without a notice.

Threat behavior

Installation

In usual situation, PUP.Optional.PullUpdate.A is bundled to freeware or shareware applications. In fact, there may be other unwanted programs that are packed to the main software that users preferred to obtain. Authors behind malicious programs are utilizing pay-per-install scheme to deploy their products over the Internet.

There are also instances that malware are being used to deploy PUP.Optional.PullUpdate.A. In this case, the threat can be acquired when visiting malicious web pages, downloading compromised files, or using file-sharing apps. Links from spam emails and social media sites are also one medium consumed by attacker to spread PUP.Optional.PullUpdate.A.

Payload

Once PUP.Optional.PullUpdate.A is run on the computer, it targets mostly known browsers like Internet Explorer, Google Chrome, Mozilla Firefox, and Safari. This threat performs changes on browser settings that may result to home page hijacking and browser redirect problems. PUP.Optional.PullUpdate.A also drops extension, add-on, and plug-in to achieve other malicious tasks.

To start instantly when browser is opened, PUP.Optional.PullUpdate.A installs itself as browser helper object. This also gives the malware to have control on the browser and install its own search engine and toolbar object.

Symptoms

Presence of PUP.Optional.PullUpdate.A affects your installed browser program. Here are some obvious signs that the malware has invaded the computer.

  • Modified start page, home page or search engine
  • Constant redirect to unwanted web sites
  • Excessive display of pop-up advertisements
  • Browser and new tabs opens on its own

Presence of the following files indicates that computer is infected with PUP.Optional.PullUpdate.A:

  • C:\ProgramData\DesktopSearch\DesktopSearchService.exe
  • C:\ProgramData\DesktopSearch\DesktopSearch.exe
  • C:\ProgramData\DesktopSearch\uninstall.exe
  • C:\Users\{username}\Desktop\DeskTopSearch.exe

How can you remove PUP.Optional.PullUpdate.A?

To totally remove PUP.Optional.PullUpdate.A from the computer and get rid of relevant adware, please execute the procedures as stated on this page. Make sure that you have completely scan the system with suggested malware removal tools and virus scanners.

Step 1 : Scan the computer with Sophos Antivirus

1. Download Sophos Virus Removal Tool from the link below. Save the file on your computer where you can easily access it.

2. Once the download completes, browse the location of the file. Double-click to run the program and begin the install process.

Screnshot of Sophos Installer

3. On first windows of installation wizard, click Next to continue. Then, it will display the program’s License Agreement. You need to Accept the terms in order to proceed. If Windows prompts for User Account Control, please click Yes to proceed.

Screenshot of Sophos EULA Page

4. On succeeding windows, click Next or Continue to carry on with the installation. After completing the installation process, Launch Sophos Virus Removal Tool.

5. Internet connection is required when running this scanner in order to download important updates. Make sure that everything is up-to-date to effectively remove adware like .

6. Click the  button to  carry out the Scan. This will check the system for presence of malicious objects, malware, and viruses. The tool reveals items that were found linked to and other suspicious entities. Be sure to remove all identified threats.

Screenshot of Sophos Virus Scan

Step 2 : Run AdwCleaner to totally remove PUP.Optional.PullUpdate.A

1. Download the tool called AdwCleaner from the location stated below.

2. Once you have completed the download, please close all running programs on the computer.

3. Locate the file and double-click on adwcleaner.exe to start running the tool.

AdwCleaner

4. It searches for presence of harmful programs, plug-ins, add-ons, or any data that were found malicious and linked to PUP.Optional.PullUpdate.A. You may have to delete each detected item.

5. Once scan is done, the tool may need to reboot your computer to finalize the cleaning process.

6. After reboot, open AdwCleaner once more. Click on Uninstall to remove this program from your computer.

How to protect the computer?

The initial defense that comes to the mind of any computer users is to install an anti-virus or anti-malware program. This move is sensible and probably the most practical way to protect the computer against PUP.Optional.PullUpdate.A attack. Hence, keep in mind that having a security software do not give full guarantee of protection. The most part of the prevention still lies on being cautious of users and therefore we are providing the following information as guidelines to protect the computer from virus infection.

Avoid Malicious Websites

There are enormous numbers of websites that was made for the primary purpose of spreading PUP.Optional.PullUpdate.A. Normally, these sites are involved in integrating malicious pop-up and browser hijacker, that will eventually cause further virus infection. Avoid such kind of websites.

Delete Phishing Emails

The mass-mailing of computer viruses gives the attackers the luxury of spreading their malicious code in just one send off. This will arrive in the inbox as email that appears to be from a legitimate organization. So, if you receive an unexpected email with a link or an attached file, better delete it immediately.

Do Not Click a Suspicious Link

Links from social media, forums, and blog sites are sometimes being utilized by attackers to drive web users to a malicious page that contains malicious code. Therefore, do not just click on any link especially if it looks suspicious. Accidental access to the destination site may lead to PUP.Optional.PullUpdate.A infection.

Be Careful When Downloading Files

Cracked software, serial key generators, and several freeware are seen as another method that spreads the PUP.Optional.PullUpdate.A virus. Avoid acquiring these types of application and if there is a need to download a freeware or shareware, be sure to obtain it from the official website or trusted providers.

About the author

1 thought on “PUP.Optional.PullUpdate.A”

  1. Deborah M Swanson

    I have a paid subscription to Malware-bytes Anti-Virus for almost 2 years now. I have learned so much from this site, I am NOT very skilled when it comes to computers. When I ran my own business I used Quick Books from 1999 to 2012, along with Microsoft Word and Excel. I taught myself how to run the programs, and learned slowly by my mistakes. Closed the business in 2012 due to my husbands cancer, and the only thing I used my laptop for was to play music for him through iTunes, which I am still learning, email and to look up many things using Mozilla Fire Fox. My laptop crashed because I was not taking care of backing up, updating programs or using a program like Malware-bytes Anti-Virus. I also used CCleaner, which was downloaded when I had called my internet company for help. I have been using it since, but worries me because I am not sure which things to mark when I do a analysis and clean up. When I bought my next laptop (Lenovo) through Office Depot they downloaded McAfee and said that would all I would need. It crashed within 18 months. Finally found a tech person who installed Malware-bytes and CCleaner and yet another new computer (HP). I have learned more in the last month using Malware-bytes when I look up everything that has been quarantined, figure out how PUP’s and PUM’s were installed or downloaded. Now come the questions I hope you can help me with. When I do search for the PUP and PUM’s it takes me to a free site called “Bleeping Computer.com”, which I have also learned so much. Your site along with Bleeping Computer recommends using Adwcleaner and Avast Browser Clean up. Do you think both of these sites I should be using for someone like myself who is not tech savvy? Would really appreciate and trust your recommendations. Please. If you are not able to give a recommendation, could you recommend someone that could help? Thank you so much.

    Sincerely,
    Deborah M Swanson

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