How to remove Sirris App

If internet browser program is exhibiting series of redirects, it might be under the control of an adware. It may also manifest pop-ups advertisements that can land the browser pages to suspicious sites. One example of an adware that can instigate such attack is called Sirris App. This kind the threat is integrated into browser program without user’s approval and commonly operates as add-on or extension.

By adopting the attributes of previous version as Palo App and XMS App, Sirris App is anticipated as another aggressive type of adware that produces different kinds of abnormalities on internet software. The threat was designed to takeover browser settings like homepage and search engine. Moreover, it is capable of redirecting browser pages to different types of insignificant destinations that web user ought not to visit. There are instances that Sirris App will compel the internet program to open up pages that contains malware and executes instant setup on visitor’s computer.

As long as Sirris App is present on Google Chrome, Safari, or Firefox, online user may continually witnessed undesirable online objects. Aside of excessive advertisements, fake warnings will show up on the browser prompting for the download of software update. Actually, this is a bogus program that is posing as software update in order to deceive web users.

Web user security and online privacy is similarly at risks during the occurrence of Sirris App adware. Part of its tasks is to track web user’s online browsing habit and it records sensitive data like favorite websites, visited pages, search keywords, IP address, username, and password. Apart from exploiting collected private information to elevate the profit from its ad scheme, makers of Sirris App may also sell the data to third parties like online marketers, developers, or underground networks of hackers.

Image of Sirris App

To conclude, Sirris App is a malicious browser extension that web user needs to be dealt with as soon as possible. Safety and privacy on internet browser application can only be attained after the complete removal of this threat. Therefore, we are publishing simple guide to remove Sirris App using only legitimate anti-virus and anti-malware tools.

Procedures to Remove Sirris App from Mac

This section contains comprehensive guide for Mac users. It will help you remove malicious browser hijacker from internet application.

Procedures on this page are written in a manner that can be easily understand and execute by Mac users.

Quick Fix - Scan the System with Combo Cleaner

Combo Cleaner is a trusted Mac utility application with complete antivirus and optimization features. It is useful in dealing with adware, malware, and PUP's. Moreover, it can get rid of malicious browser hijacker like Sirris App. You may need to purchase full version if you require to maximize its premium features.

1. Download the tool from the following page:

2. Double-click the downloaded file and proceed with the installation.

3. In the opened window, drag and drop the Combo Cleaner icon onto your Applications folder icon.

Install Combo Cleaner

4. Open your Launchpad and click on the Combo Cleaner icon.

5. Wait until antivirus downloads it's latest virus definition updates and click on "Start Combo Scan" to start removing Sirris App.

Combo Cleaner Scanner

6. Free features of Combo Cleaner include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus and privacy scanner, users have to upgrade to a premium version.

Proceed with the rest of the removal steps if you are comfortable in manually removing malicious objects associated with the threat.

Step 1 : Delete Sirris App from Mac Applications

1. Go to Finder.

2. On the menu, click Go and then, select Applications from the list to open Applications Folder.

3. Find Sirris App or any unwanted program.

Delete Unwanted App

4. Drag Sirris App to Trash Bin to delete the application from Mac.

5. Right-click on Trash icon and click on Empty Trash.

Step 2 : Remove Browser Extensions that belongs to Sirris App

1. Locate the add-on or extension that is relevant to the hijacker. To do this, please follow the following depending on affected browser.

Safari - Choose Preferences from the Safari menu, then click the Extensions icon. This will open a window showing all installed extensions.

Chrome - Select Preferences from the Chrome menu, and then click the Extensions link found on the left pane.

Firefox - Choose Add-ons from the Menu. Look at both the Extensions and Plug-ins lists when it opens a new window.

2. Once you have located Sirris App or any suspicious items, click on Remove or Uninstall, to get rid of it.

3. Close the browser and proceed to the next steps.

Step 3 : Delete Malicious Files that have installed Sirris App

1. Select and copy the string below to your Clipboard by pressing Command + C on your keyboard.

~/Library/LaunchAgents

2. Go to your Finder. From the menu bar please select Go > Go to Folder...

3. Press Command + V on your keyboard to paste the copied string. Press Return to go to the said folder.

Command + V

4. You will now see a folder named LaunchAgents. Take note of the following files inside the folder:

  • unknown.download.plist
  • unknown.ltvbit.plist
  • unknown.update.plist
  • com.unknown

The term unknown is just a representation of the actual malware name. It is normally an unfamiliar file name such as the following:

- XMS App, Palo App

If you cannot find the specified file, please look for any unfamiliar or suspicious entries. It may be the one causing Sirris App to be present on your Mac. Arranging all items to see the most latest ones may also help you identify recently installed unfamiliar files. Please press Option + Command + 4 on your keyboard to arrange the application list in chronological order.

Option+Command+4

Important: Take note of all the suspicious files as you may also delete the same item on another folder as we go on.

5. Drag all suspicious files that you may find to Trash.

6. Please restart the computer.

7. Open another folder using the same method as above. Copy and Paste the following string to easily locate the folder.

~/Library/Application Support

8. Look for any suspicious items that are similar to the ones in Step 4. Drag them to the Trash.

9. Repeat the process on the following non-hidden folders (without ~):

/Library/LaunchAgents
/Library/LaunchDaemons
/Library/Application Support
/Library/Preferences

Optional : For locked files that cannot be removed, do the following:

1. Go to Launchpad, Utilities folder, open Activity Monitor.

2. Select the process you want to quit.

Force Quit Apps

3. Click on Force Quit button.

4. You may now delete or remove locked files that belongs to Sirris App homepage hijacker.

Step 4 : Double-check with MBAM Tool for Mac

1. Download Malwarebytes Anti-malware for Mac from the link below.

2. Run Malwarebytes Anti-malware for Mac. It will check for updates and download if most recent version is available. This is necessary in finding recent malware threats including Sirris App.

3. If it prompts to close all running web browser, please do so. Thus, we advise you to PRINT this guide for your reference before going offline.

4. Once it opens the user interface, please click on Scan button to start scanning your Mac computer.

MBAM for Mac

5. After the scan, Malwarebytes Anti-malware for Mac will display a list of identified threats, Sirris App is surely part of it. Be sure to select all items in the list. Then, click Remove button to clean the computer.

Step 5 : Remove Sirris App from Homepage and Search

Safari

- Open your Safari browser.
- Go to Safari Menu located on upper left hand corner, and then select Preferences.
- Under General tab, navigate to Default Search Engine section and select Google or any valid search engine.
- Next, be sure that "New Windows Open With" field is set to Homepage.
- Lastly, remove Sirris App from the Homepage field. Replace it with your preferred URL to be set as your default homepage.

Google Chrome

- Open Chrome browser.
- Type the following on the address bar and press Enter on keyboard : chrome://settings/
- Look for 'On Startup' area.
- Select 'Open a specific page or set of pages'.
- Click on More Actions and select Edit.
- Enter the desired web address as your home page, replacing Sirris App. Click Save.
- To set default search engine, go to Search Engine area.
- Click on 'Manage search engines...' button.
- Go to questionable Search Engine. Click on More Actions and Click 'Remove from list'.
- Go back to Search Engine area and choose valid entry from Search engine used in the address bar.

Mozilla Firefox

- Run Mozilla Firefox browser.
- Type the following on the address bar and hit Enter on keyboard : about:preferences
- On Startup area, select 'Show your home page' under 'When Firefox starts' field.
- Under Home Page field, type the desired URL to replace Sirris App settings.
- To configure default search engine, select Search on left sidebar to display settings.
- Under Default Search Engine list, please select one.
- On the same page, you have an option to Remove unwanted search engine.

Step 6 : Delete Sirris App Login Items

Some browser hijacker may also install login item into compromised account under System Preferences. This object automatically runs Sirris App during user log in.

1. Go to Apple menu and choose System Preferences.

2. Select Users & Groups from the preferences window.

3. You may need to Unlock this area in order to make changes. Click on the Lock icon on lower left corner of the window.

4. Next, select user account that runs Sirris App.

5. Click on Login Items tab.

6. Select Sirris App or any suspicious entries from the list and click on the minus [-] button and confirm your actions. Please see image below for reference.

Login Items

Optional : If unable to change browser settings, execute these steps:

Some user complains that there is no way to change browser settings because it is grayed out by Sirris App. In such situation, it is important to check if there is unwanted profile. Please do the following:

1. Quit any running applications and launch System Preferences from your Dock.

2. Under System Preferences, click Profiles.

3. Select , Sirris App or any relevant profile from the left pane. See image below.

Remove Profile

4. At the bottom of this window, click minus [-] button to delete the account. Please refer to image above.

5. Close the Profiles window and open the affected browser to change all settings associated with Sirris App.

Sirris App Removal Procedure for PC

Below is a systematic instruction that is very useful in getting rid of the potentially unwanted program (PUP) from compromised computer.

In order to totally eliminate the threat, it is vital to follow the process in exact manner.

Quick Fix - Scan the computer with Anti-malware Program

To remove Sirris App automatically, scanning the computer with this powerful anti-malware tool is recommended. This scanner does not just uncover known threats like viruses or malware, it is also effective in discovering browser hijacker like Sirris App that slows down online browsing activities.

1. Download the free anti-malware scanner called MalwareBytes Anti-Malware.

2. After downloading, install the program. It may run automatically or you have to double-click on the downloaded file MBSetup.exe.

3. Proceed with the installation using only the default setup. If you need the complete setup procedure, it is available on the download page.

4. After the installation process, click Get Started to run the program.

5. Continue with the prompts until the main program opens.

6. On Malwarebytes Anti-malware console, click on Scan to run the most comprehensive detection method and find any hidden items linked to Sirris App.

7. Wait for the anti-malware to finish scanning the computer.

MBAM Scan

8. When scanning is done, Malwarebytes Anti-Malware will display the list of identified threats. Remove all identified threats including Sirris App and restart the computer to finalized the scan process.

The above procedures should have totally eliminated the browser hijacker. However, if you still find that there are still remnants of Sirris App on internet application, please proceed to manual removal of associated objects as outlined below.

Step 1 : Delete Browser Extension

Most adware and unwanted programs are using a program called browser extension to be able to take over the settings of internet applications. Therefore, we highly recommend to check and remove the extension that is closely related to Sirris App.

Remove Sirris App Extension from Google Chrome

1. Open Google Chrome browser.

2. Type chrome://extensions/ in the address bar and press Enter on keyboard.

Chrome URL

3. Find Sirris App or relevant entry and remove it from Google Chrome.

Sirris App Chrome Extension

Uninstall Sirris App Extension from Firefox

1. Open Mozilla Firefox browser.

2. Type about:addons in the address bar and press Enter on keyboard.

Firefox URL

3. Choose Extensions on sidebar menu.

4. Look for object that is pertaining to Sirris App and remove it from the browser.

Remove Sirris App Add-ons from Internet Explorer and Edge Browser

1. Open Internet Explorer program.

2. Go to top Menu and click Tools. Then, select Manage Add-ons from the drop-down list.

Internet Explorer Add-ons

3. Look for and Remove or Disable entries of Sirris App from Toolbars and Extension and Search Providers section.

4. Close the window and restart Internet Explorer.

If Sirris App is still present on the IE browser, another option is to remove the adware from Windows Control Panel.

5. Press Windows Key + R and then, type appwiz.cpl command.

6. Program and Features window will open. Arrange the list in chronological manner with recently installed applications on top. To do this, click on 'Installed On' column.

Add-Remove Malware

7. Select Sirris App or recently installed unwanted entry. Then, click on Uninstall to remove it from Windows system.

Step 2 : Scan and Delete Adware with AdwCleaner

In addition to the procedure, we suggest scanning the computer with AdwCleaner tool. Possibly, there are some traces of Sirris App on the browser that was not deleted during the preceding steps. This tool will scan the computer and check for presence of malicious applications.

1. Follow the link below to download the tool called AdwCleaner.

2. When the download has completed, please close all running programs on the computer especially browsers affected by Sirris App.

3. Browse the location of the downloaded file and double-click on adwcleaner_Ver.exe to start running the tool. Then, click on Scan button.

AdwCleaner

4. AdwCleaner searches the computer for malicious programs, extensions, plug-ins, adware, and any items that may be associated to Sirris App.

5. Clean or Remove all suspicious and harmful items identified after the thorough scan.

6. After the cleanup procedure, rebooting the computer is required to finalize the removal of detected threats.

Share & Recommend

About the author

Leave a Comment

Your email address will not be published. Required fields are marked *