Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (2024)

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  • Cassiopessa and Cassiopesa Browser Hijacker Removal Guide
  • Filed Under : Adware
  • November 18, 2015

What is Cassiopessa.com Browser?

Skip this and learn how to remove Cassiopessa.com Browser!

The Cassiopessa.com hijacker, also spelled as Cassiopesa, is a browser hijacker that installs it's own customized Chromium browser and changes the start pages and search engine used for your installed browsers to Cassiopessa.com. When installed, this program will install a customized copy of the open-source Chromium web browser project from Google that looks like Google Chrome, but is configured to open to Cassiopessa.com instead of your normal default pages. Furthermore, this hijacker will change the start pages and search engines for other installed browsers such as Firefox, Chrome, and Internet Explorer. To make matters worse, when the Cassiopesa Browser is installed it will configure itself to be the default browser for web sites and for .htm, .html, .shtml, .webp, .xht, and .xhtml documents.

  • Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (46)
  • Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (47)
  • Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (48)
  • Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (49)

When installed, most people will use the Cassiopessa Browser thinking it's the normal Chrome browser instead of an imposter. While using it, the browser will display unwanted ads and use their search engine in order to highlight products that they promote.

As you can see, the Cassiopessa hijacker is not a program you want on your computer. Not only is it deceptive in how it pretends to be Chrome, but it also displays advertisem*nts when you use it to browse the web. Furthermore, if this program is installed on your computer there is a very good chance that other unwanted programs are installed as well. Please use this guide to remove all remnants of the eFast Browser adware and any other related programs.

Cassiopessa.com Browser Removal Options

  • Self Help Removal Guide (Below)

  • Ask for Help in our Security Forum

Self Help Guide

This guide contains advanced information, but has been written in such a way so that anyone can follow it. Please ensure your data is backed up before proceeding.

If you are uncomfortable making changes to your computer or following these steps, do not worry! Instead you can get free one-on-one help by asking in the forums.

To remove Cassiopessa.com Browser, follow these steps:

  • STEP 1: Print out instructions before we begin.
  • STEP 2: Uninstall programs via Windows control panel.
  • STEP 3: Use Rkill to terminate suspicious programs.
  • STEP 4: Use Malwarebytes AntiMalware to Scan for Malware and Unwanted Programs
  • STEP 5: Use AdwCleaner to remove adware from a computer.
  • STEP 6: Run Shortcut Cleaner to fix infected Windows shortcuts.
  • STEP 7: Reset browsers back to default settings.
  • STEP 8: Use HitmanPro to scan your computer for badware
  • STEP 9: Run Secunia PSI to find outdated and vulnerable programs.

1

This removal guide may appear overwhelming due to the amount of the steps and numerous programs that will be used. It was only written this way to provide clear, detailed, and easy to understand instructions that anyone can use to remove this infection for free. Before using this guide, we suggest that you read it once and download all necessary tools to your desktop. After doing so, please print this page as you may need to close your browser window or reboot your computer.

2

As Cassiopessa.com Browser sometimes has a usable Uninstall entry that can be used to remove the program, we want to try that first. To do this, click on the Start button and then select Control Panel.

3

When in the Control Panel, double-click on one of the options below depending on your version of Windows

  1. For Windows XP double-click on the Add or Remove Programs icon.
  2. For Windows Vista, Windows 7, Windows 8, and Windows 10 double-click on the Uninstall Program option.

4

When the Add or Remove Programs or the Uninstall Program screen is displayed, please scroll through the list of programs and double-click on each of the entries listed in bold below to uninstall them.

Chromium

When you double-click on the above entries to uninstall them, please follow the default prompts and allow it to remove all files and all configuration information related to this program. If any of the programs ask you to reboot your computer, do not allow it to reboot until you have uninstalled all of the programs listed above.

5

When you are done, you can close the Control Panel screens.

6

To terminate any programs that may interfere with the removal process we must first download the Rkill program. Rkill will search your computer for active malware infections and attempt to terminate them so that they wont interfere with the removal process. To do this, please download RKill to your desktop from the following link.

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Rkill

Download Now

When at the download page, click on the Download Now button labeled iExplore.exe. When you are prompted where to save it, please save it on your desktop.

7

Once it is downloaded, double-click on the iExplore.exe icon in order to automatically attempt to stop any processes associated with Cassiopessa.com Browser and other malware. Please be patient while the program looks for various malware programs and ends them. When it has finished, the black window will automatically close and a log file will open. Please review the log file and then close so you can continue with the next step. If you have problems running RKill, you can download the other renamed versions of RKill from the rkill download page. All of the files are renamed copies of RKill, which you can try instead. Please note that the download page will open in a new browser window or tab.

Do not reboot your computer after running RKill as the malware programs will start again.

8

At this point you should download Malwarebytes Anti-Malware, or MBAM, to scan your computer for any infections, adware, or potentially unwanted programs that may be present. Please download Malwarebytes from the following location and save it to your desktop:

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Malwarebytes Anti-Malware

Download Now

9

Once downloaded, close all programs and Windows on your computer, including this one.

10

Double-click on the icon on your desktop named MBSetup-1878.1878-4.0.exe. This will start the installation of MBAM onto your computer.

11

When the installation begins, keep following the prompts in order to continue with the installation process. Do not make any changes to default settings and when the program has finished installing, a welcome screen will be displayed.

At this screen, click on the Get Started button where you will be prompted to buy and activate a license. To continue using it for free, click on the 'Maybe Later' option and then select 'Use Malwarebytes Free'.

It should be noted that the free version will scan for and remove malware, but not provide real-time protection from threats that occur when not performing a scan.

Finally, you will be shown a screen asking you to sign up for their newsletter. Just click on the 'Open Malwarebytes Free' option to start the program.

12

MBAM will now start and you will be at the main screen as shown below.

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We now need to enable rootkit scanning to detect the largest amount of malware and unwanted programs that is possible with MalwareBytes. To do this, click on the Settings gear on the top left side of the screen and you will be brought to the general settings section.

Now click on the Security option at the top of the screen. You will now be shown the settings MalwareBytes will use when scanning your computer.

Scroll down until you see Scan option as shown below.

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At this screen, please enable the Scan for rootkits setting by clicking on the toggle switch so it turns blue.

Now that you have enabled rootkit scanning, click on the X button to close the settings to get back to the main screen.

13

You should now click on the Scan button to begin scanning your computer for malware.

This process can take quite a while, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.

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14

When MBAM is finished scanning it will display a screen that displays any malware, adware, or potentially unwanted programs that it has detected. Please note that our guide's scan results image may look different than the one you are shown in this version of Malwarebytes as it was created with an older version.

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You should now click on the Quarantine button to remove all the selected items. MBAM will now delete all of the files and registry keys and add them to the program's quarantine.

When removing the files, MBAM may require a reboot in order to remove some of them. If it displays a message stating that it needs to reboot, please allow it to do so. Once your computer has rebooted, and you are logged in, please continue with the rest of the steps.

15

You can now exit the MBAM program.

16

Now please download AdwCleaner and save it to your desktop. AdwCleaner will scan your computer for adware programs that may have been installed on your computer without your knowledge. You can download AdwCleaner from the following URL:

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AdwCleaner

Download Now

17

When AdwCleaner has finished downloading, please double-click on the AdwCleaner.exe icon that now appears on your desktop. Once you double-click on the icon the AdwCleaner program will open and you will be presented with the program's license agreement. After you read it, click on the I agree button if you wish to continue. Otherwise, click on the I disagree button to close the program. If Windows prompts you as to whether or not you wish to run AdwCleaner, please allow it to run.

If you selected to continue, you will be presented with the start screen as shown below.

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18

Now click on the Scan button in AdwCleaner. The program will now start to search for known adware programs that may be installed on your computer. When it has finished it will display all of the items it has found in Results section of the screen above. Please look through the results and try to determine if the programs that are listed contain ones that you do not want installed. If you find programs that you need to keep, then uncheck the entries associated with them.

For many people, the contents of the Results section may appear confusing. Unless you see a program name that you know should not be removed,please continue with the next step.

19

To remove the adware programs that were detected in the previous step, please click on the Clean button on the AdwCleaner screen. AdwCleaner will now prompt you to save any open files or data as the program will need to close any open programs before it starts to clean.

Please save your work and then click on the OK button. AdwCleaner will now delete all detected adware from your computer. When it is done it will display an alert that explains what PUPs (Potentially Unwanted Programs) and Adware are. Please read through this information and then press the OK button. You will now be presented with an alert that states AdwCleaner needs to reboot your computer.

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Please click on the OK button to let AdwCleaner reboot your computer.

20

When your computer reboots and you are logged in, AdwCleaner will automatically open a log file that contains the files, registry keys, and programs that were removed from your computer.

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Please review this log file and then close the Notepad Window.

21

Unfortunately, Cassiopessa.com Browser also hijacks your web browser shortcuts so that the Cassiopessa.com Browser home page will open when you start your web browser in a certain way. To fix these shortcuts you need to use a program called Shortcut Cleaner. Please download and save Shortcut Cleaner to your desktop using the following link:

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Shortcut Cleaner

Download Now

22

Once the program has been downloaded, please double-click on the sc-cleaner.exe icon that will now be on your desktop. If Windowsprompts you as to whether or not you wish to run Shortcut Cleaner, please allow it to run. Once the program starts, it will scan your computer for hijacked shortcutsand clean them. When it has finished it will display a log file that contains a list of all Windows shortcuts that were hijacked and disinfected.

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After reviewing this log file, please close the Notepad window.

23

If you are still having problems with Cassiopessa.com Browser then you should also reset your browsers back to their default configuration. Please note that this method will remove all add-ons, extensions, toolbars and other customizations but will leave your bookmarks and favorites intact.

For each browser that you have installed on your computer, please click on the browsers icon below and follow the displayed steps to reset that browser.

In order to remove Cassiopessa.com Browser completely you will need to reset Chrome back to its initial settings. Doing these steps will erase all configuration information from Chrome such as your home page, tab settings, saved form information, browsing history, and cookies. This process will also disable any installed extensions. All of your bookmarks, though, will be preserved.

To reset Chrome, open the program and click on the Chrome menu button (Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (62)) in the top right-hand corner of the window. This will open the main menu for Chrome as shown below.

Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (63)

Now click on the menu option labeled Settings as shown by the arrow in the picture above, which will open the basic settings screen. Scroll down to the very bottom and you will see a Show advanced settings... option as shown in the image below.

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Click on the Show advanced settings... option to open the advanced settings screen. Scroll to the very bottom until you see the reset button as shown in the image below.

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Now click on the Reset settings button as shown in the image above. Chrome will now open a confirmation dialog asking if you are sure you wish to reset your browser.

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To reset Chrome, click on the Reset button. Chrome will now erase all your personal data, browsing history, and disable all installed extensions. Your bookmarks, though, will remain intact and still be accessible. You can now close the Settings tab and continue with the rest of the instructions.

In order to remove Cassiopessa.com Browser completely you will need to reset Internet Explorer back to its initial settings. Doing these steps will erase all configuration information from Internet Explorer such as your home page, saved form information, browsing history, and cookies. This process will also disable any installed toolbars and add-ons. All of your bookmarks, though, will be preserved.

To reset Internet Explorer, open the program and click on the Internet Explorer menu button (Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (67)) in the top right-hand corner of the window. This will open the main menu for Internet Explorer as shown below.

Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (68)

Now click on the menu option labeled Internet options as shown by the arrow in the picture above, which will open the Internet Options screen.

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Now click on the Advanced tab as shown in the image above. This will open the Advanced Settings screen.

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Now click on the Reset... button as shown in the image above. Internet Explorer will now open a confirmation dialog asking you to confirm that you wish to reset your browser.

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In the reset dialog shown above, please put a check mark in Delete personal settings and then click on the Reset button. Internet Explorer will now erase all your personal data, browsing history, and disable all add-ons and toolbars. Your favorites, though, will remain intact and still be accessible.

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Once the Reset process has been completed, click on the Close button. You will now be prompted to restart Internet Explorer to complete the reset. Once you have restarted Internet Explorer, you can continue with the rest of the instructions.

In order to remove Cassiopessa.com Browser completely you will need to refresh Firefox back to its initial settings. It does this by removing all add-ons and personalized configuration settings. All of your bookmarks, though, will be preserved.

To reset Firefox, open the program and click on the Firefox menu
button (Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (73)) in the top right-hand corner of the window. This will open the main menu for Firefox as shown below.

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Now click on the question mark button (Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (75)) as indicated by the arrow in the image above. This will open up the Firefox help menu.

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Next click on the Troubleshooting Information option as indicated by the arrow in the image above. This will bring you to a Troubleshooting page.

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To begin the refresh process click on the Refresh Firefox.. button. When you do this a confirmation will be shown asking if you wish to perform a Firefox refresh.

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To refresh Firefox, click on the Refresh Firefox button. When the refresh process is finished you will be shown an Import window that will automatically close. When that closes, Firefox will be open and state that it has been refreshed.

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You can now click on the Let's go! button to start using Firefox again.

In order to completely remove Cassiopessa.com Browser you will need to reset Safari back to its initial settings. Doing these steps will erase all configuration information from Safari such as your Top Sites, saved form information, browsing history, and cookies. This process will not erase your bookmarks or extensions, which will still be available after you reset Safari.

To reset Safari, open the program and click on the gear (Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (80)) in the top right-hand corner of the window. This will open the main menu for Safari as shown below.

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Now click on the menu option labeled Reset Safari as shown by the arrow in the picture above. This will open a window that allows you to select all the items you wish to reset.

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Keep the check marks in each option and then click on the Reset button. Safari will delete all of your personal data and then open a blank page, which means the process has finished.

It is important to note that this process does not delete your Bookmarks or any installed Safari Extensions. If you wish to remove your Safari Extensions as well, you can download this batch file, which will reset Safari and delete all installed extensions, while still retaining your bookmarks.

24

Now you should download HitmanPro from the following location and save it to your desktop:

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HitmanPro

Download Now

When you visit the above page, please download the version that corresponds to the bit-type of the Windows version you are using.

25

Once downloaded, double-click on the file named HitmanPro.exe (for 32-bit versions of Windows) or HitmanPro_x64.exe (for 64-bit versions of Windows). When the program starts you will be presented with the start screen as shown below.

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Now click on the Next button to continue with the scan process.

26

You will now be at the HitmanPro setup screen. If you would like to install the 30 day trial for HitmanPro, select the Yes, create a copy of HitmanPro so I can regularly scan this computer (recommended) option. Otherwise, if you just want to scan the computer this one time, please select the No, I only want to perform a one-time scan to check this computer option.

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Once you have selected one of the options, please click on the Next button.

27

HitmanPro will now begin to scan your computer for infections, adware, and potentially unwanted programs. When it has finished it will display a list of all the items that Hitman has found as shown in the image below. Please note that the items found may be different than what is shown in the image.

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You should now click on the Next button to have HitmanPro remove the detected items. When it is done you will be shown a Removal Results screen that shows the status of the various programs that were removed. At this screen you should click on the Next button and then if prompted you should click on the Reboot button. If HitmanPro does not prompt you to reboot, please just click on the Close button.

Once your computer has has restarted or you pressed the Close button, you should now be at your Windows desktop.

28

As many malware and unwanted programs are installed through vulnerabilities found in out-dated and insecure programs, it is strongly suggested that you use Secunia PSI to scan for vulnerable programs on your computer. A tutorial on how to use Secunia PSI to scan for vulnerable programs can be found here:

How to detect vulnerable and out-dated programs using Secunia Personal Software Inspector

Your computer should now be free of the Cassiopessa.com Browser program. If your current security solution allowed this program on your computer, you may want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future.

If you are still having problems with your computer after completing these instructions, then please follow the steps outlined in the topic linked below:

Preparation GuideFor Use Before Using Malware Removal Tools and Requesting Help

Are Your Protected?

While Malwarebytes Anti-Malware & HitmanPro will scan and clean a computer for free, the free versions do not offer real-time protection. If you want to be fully protected at all times then it is recommended that you purchase a premium version.

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Malwarebytes Anti-Malware

Purchase the full-featured version of Malwarebytes Anti-Malware, which includes real-time protection, scheduled scanning, and website filtering, to protect yourself against these types of threats in the future!

Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (88)

HitmanPro

Purchase the full-featured version of HitmanPro, which includes discover viruses, trojans, rootkits, spyware and other malware on up-to-date and fully protected computers using cloud protection and behavioral detections, to protect yourself against these types of threats in the future!

Disclaimer: While we do earn a commission from the sale of the above products, rest assured we only recommend them due to their effectiveness.

View Associated Cassiopessa.com Browser Files

%LocalAppData%\Chromium\%LocalAppData%\Chromium\Application\%LocalAppData%\Chromium\Application\45.0.2422.0\%LocalAppData%\Chromium\Application\45.0.2422.0\chrome.dll%LocalAppData%\Chromium\Application\45.0.2422.0\chrome_100_percent.pak%LocalAppData%\Chromium\Application\45.0.2422.0\chrome_200_percent.pak%LocalAppData%\Chromium\Application\45.0.2422.0\chrome_child.dll%LocalAppData%\Chromium\Application\45.0.2422.0\chrome_elf.dll%LocalAppData%\Chromium\Application\45.0.2422.0\chrome_watcher.dll%LocalAppData%\Chromium\Application\45.0.2422.0\d3dcompiler_47.dll%LocalAppData%\Chromium\Application\45.0.2422.0\delegate_execute.exe%LocalAppData%\Chromium\Application\45.0.2422.0\Extensions\%LocalAppData%\Chromium\Application\45.0.2422.0\Extensions\external_extensions.json%LocalAppData%\Chromium\Application\45.0.2422.0\ffmpegsumo.dll%LocalAppData%\Chromium\Application\45.0.2422.0\icudtl.dat%LocalAppData%\Chromium\Application\45.0.2422.0\Installer\%LocalAppData%\Chromium\Application\45.0.2422.0\Installer\chrome.7z%LocalAppData%\Chromium\Application\45.0.2422.0\Installer\setup.exe%LocalAppData%\Chromium\Application\45.0.2422.0\libegl.dll%LocalAppData%\Chromium\Application\45.0.2422.0\libexif.dll%LocalAppData%\Chromium\Application\45.0.2422.0\libglesv2.dll%LocalAppData%\Chromium\Application\45.0.2422.0\Locales\%LocalAppData%\Chromium\Application\45.0.2422.0\metro_driver.dll%LocalAppData%\Chromium\Application\45.0.2422.0\nacl64.exe%LocalAppData%\Chromium\Application\45.0.2422.0\nacl_irt_x86_32.nexe%LocalAppData%\Chromium\Application\45.0.2422.0\nacl_irt_x86_64.nexe%LocalAppData%\Chromium\Application\45.0.2422.0\natives_blob.bin%LocalAppData%\Chromium\Application\45.0.2422.0\resources.pak%LocalAppData%\Chromium\Application\45.0.2422.0\secondarytile.png%LocalAppData%\Chromium\Application\45.0.2422.0\snapshot_blob.bin%LocalAppData%\Chromium\Application\45.0.2422.0\VisualElements\%LocalAppData%\Chromium\Application\45.0.2422.0\VisualElements\logo.png%LocalAppData%\Chromium\Application\45.0.2422.0\VisualElements\smalllogo.png%LocalAppData%\Chromium\Application\45.0.2422.0\VisualElements\splash-620x300.png%LocalAppData%\Chromium\Application\45.0.2422.0\xinput1_3.dll%LocalAppData%\Chromium\Application\chrome.exe%LocalAppData%\Chromium\Application\Chromium.ico%LocalAppData%\Chromium\Application\debug.log%LocalAppData%\Chromium\Application\master_preferences%LocalAppData%\Chromium\Application\uninstall.dat%LocalAppData%\Chromium\Application\VisualElementsManifest.xml%Desktop%\Chromium.lnkC:\Windows\SysWOW64\setup.exe

File Location Notes:

%Desktop% means that the file is located directly on your desktop. This is C:\DOCUMENTS AND SETTINGS\<Current User>\Desktop\ for Windows 2000/XP, and C:\Users\<Current User>\Desktop\ for Windows Vista, Windows 7, and Windows 8.

%LocalAppData% refers to the current users Local settings Application Data folder. By default, this is C:\Documents and Settings\<Current User>\Local Settings\Application Data for Windows 2000/XP. For Windows Vista, Windows 7, and Windows 8 it is C:\Users\<Current User>\AppData\Local.

View Associated Cassiopessa.com Browser Registry Information

HKCU\Software\Chromium\HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{9143e921-7c9a-4d27-ac43-eaccc78cc55a}\URL http://www.cassiopessa.com/results.php?f=4&q={searchTerms}&a=csp_tight21_15_47&cd=2XzuyEtN2Y1L1QzutDzztDtDtByBzzyDyE0AtD0B0FtAyDtDtN0D0Tzu0StCyEtCyBtN1L2XzutAtFtCtBtFyDtFtDtN1L1CzutN1L1G1B1V1N2Y1L1Qzu2SyDyD0E0E0B0DtDzytGtByDyDtDtGyE0DtA0AtGyDyBzyyDtGzzzztDtCtBtDtC0C0BtDtD0A2QtN1M1F1B2Z1V1N2Y1L1Qzu2StDzztCtBzzyC0CyEtGtAyC0CtCtGyE0B0AzytGzz0F0A0BtGtB0C0DzztBzz0FzztC0ByE0F2QtN0A0LzutD&cr=11289527&ir=HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{9143e921-7c9a-4d27-ac43-eaccc78cc55a}\TopResultURLFallback http://www.cassiopessa.com/results.php?f=4&q={searchTerms}&a=csp_tight21_15_47&cd=2XzuyEtN2Y1L1QzutDzztDtDtByBzzyDyE0AtD0B0FtAyDtDtN0D0Tzu0StCyEtCyBtN1L2XzutAtFtCtBtFyDtFtDtN1L1CzutN1L1G1B1V1N2Y1L1Qzu2SyDyD0E0E0B0DtDzytGtByDyDtDtGyE0DtA0AtGyDyBzyyDtGzzzztDtCtBtDtC0C0BtDtD0A2QtN1M1F1B2Z1V1N2Y1L1Qzu2StDzztCtBzzyC0CyEtGtAyC0CtCtGyE0B0AzytGzz0F0A0BtGtB0C0DzztBzz0FzztC0ByE0F2QtN0A0LzutD&cr=11289527&ir=HKCU\Software\Microsoft\Internet Explorer\SearchScopes\{9143e921-7c9a-4d27-ac43-eaccc78cc55a}\FaviconPath %LocalAppData%Low\Microsoft\Internet Explorer\Services\Tny_Cassiopesa.icoHKCU\Software\Microsoft\Internet Explorer\SearchScopes\{9143e921-7c9a-4d27-ac43-eaccc78cc55a}\ CassiopesaHKCU\Software\Microsoft\Internet Explorer\SearchScopes\{9143e921-7c9a-4d27-ac43-eaccc78cc55a}\DisplayName CassiopesaHKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\NewShortcuts\C:\Users\User\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Chromium.lnk 1HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\52a2319a8554d28a02644f45faf5dfb6HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\52a2319a8554d28a02644f45faf5dfb6\{816FB733-A5C7-DB8B-C85F-FE63EC3702FB} S1417HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\ChromiumHKCU\Software\TM 0115HKCU\Software\U_DT 20151118HKCU\Software\U_SDTHKCU\Software\U_TM 0115HKCU\Software\U_VER 3.16HKCU\Software\tny_cassiopesaHKLM\SOFTWARE\Classes\.htm\OpenWithProgIds\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Classes\.html\OpenWithProgIds\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Classes\.shtml\OpenWithProgids\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Classes\.webp\OpenWithProgids\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Classes\.xht\OpenWithProgIds\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Classes\.xhtml\OpenWithProgIds\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Classes\AppID\{ef494946-9425-4a5c-b373-74ccd38e8c48}HKLM\SOFTWARE\Classes\Wow6432Node\CLSID\{816FB733-A5C7-DB8B-C85F-FE63EC3702FB}HKLM\SOFTWARE\Classes\Wow6432Node\AppID\{ef494946-9425-4a5c-b373-74ccd38e8c48}HKLM\SOFTWARE\Classes\ChromiumHTM.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Clients\StartMenuInternet\Chromium.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\RegisteredApplications\Chromium.NNG66ACYZZIKWHNGW4QCQJIWYE Software\Clients\StartMenuInternet\Chromium.NNG66ACYZZIKWHNGW4QCQJIWYE\CapabilitiesHKLM\SOFTWARE\Wow6432Node\Classes\CLSID\{816FB733-A5C7-DB8B-C85F-FE63EC3702FB}HKLM\SOFTWARE\Wow6432Node\Classes\AppID\{ef494946-9425-4a5c-b373-74ccd38e8c48}HKLM\SOFTWARE\Wow6432Node\Clients\StartMenuInternet\Chromium.NNG66ACYZZIKWHNGW4QCQJIWYEHKLM\SOFTWARE\Wow6432Node\RegisteredApplications\Chromium.NNG66ACYZZIKWHNGW4QCQJIWYE Software\Clients\StartMenuInternet\Chromium.NNG66ACYZZIKWHNGW4QCQJIWYE\CapabilitiesHKCU\Software\Microsoft\Internet Explorer\Main\Start Page "http://www.cassiopessa.com/?f=1&a=csp_tight21_15_47&cd=2XzuyEtN2Y1L1QzutDzztDtDtByBzzyDyE0AtD0B0FtAyDtDtN0D0Tzu0StCyEtCyBtN1L2XzutAtFtCtBtFyDtFtDtN1L1CzutN1L1G1B1V1N2Y1L1Qzu2SyDyD0E0E0B0DtDzytGtByDyDtDtGyE0DtA0AtGyDyBzyyDtGzzzztDtCtBtDtC0C0BtDtD0A2QtN1M1F1B2Z1V1N2Y1L1Qzu2StDzztCtBzzyC0CyEtGtAyC0CtCtGyE0B0AzytGzz0F0A0BtGtB0C0DzztBzz0FzztC0ByE0F2QtN0A0LzutD&cr=11289527&ir="HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe\ "%LocalAppData%\Chromium\Application\chrome.exe"HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe\Path "%LocalAppData%\Chromium\Application"HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe\ "%LocalAppData%\Chromium\Application\chrome.exe"HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\chrome.exe\Path "%LocalAppData%\Chromium\Application"

This is a self-help guide. Use at your own risk.

BleepingComputer.com can not be held responsible for problems that may occur by using this information. If you would like help with any of these fixes, you can ask for malware removal assistance in our Virus,Trojan,Spyware, and Malware Removal Logs forum.

If you have any questions about this self-help guide then please post those questions in our Am I infected? What do I do? and someone will help you.

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Threat Descriptions

  • Adware
  • Browser Extensions and Add-ons
  • Browser Hijacker
  • Potentially Unwanted Programs (PUP)
  • Ransomware
  • Rootkits
  • Spyware
  • Tech Support Scams
  • Trojan Horses
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  • Worms
Cassiopessa and Cassiopesa Browser Hijacker Removal Guide (2024)

References

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