PUP.BoBrowser

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Last updated:

Threat Scorecard

Popularity Rank: 8,207
Threat Level: 10 % (Normal)
Infected Computers: 60,597
First Seen: October 10, 2014
Last Seen: September 29, 2026
OS(es) Affected: Windows

The detection of PUP.BoBrowser on your system indicates the presence of a potentially unwanted program (PUP) that may be causing issues with your computer's performance and security. It's essential to understand the nature of this threat and take immediate action to remove it to prevent any potential harm.

What Is PUP.BoBrowser?

PUP.BoBrowser is a type of malware that is classified as a potentially unwanted program. This means that while it may not be as malicious as other types of malware, such as viruses or Trojans, it can still cause problems with your system and compromise your privacy. PUPs are often bundled with other software or downloaded from the internet, and they can be difficult to remove without the right tools and expertise.

How PUP.BoBrowser Operates

PUP.BoBrowser operates by installing itself on your system and then proceeding to carry out various unwanted activities. These can include displaying unwanted advertisements, collecting your personal data, and modifying your browser settings. In some cases, PUPs can also install additional malware or create backdoors that allow hackers to access your system. It's crucial to remove PUP.BoBrowser as soon as possible to prevent any further damage.

Symptoms of Infection

If your system is infected with PUP.BoBrowser, you may notice various symptoms, including slow system performance, unwanted pop-ups and advertisements, and changes to your browser settings. You may also notice that your system is crashing or freezing frequently, or that your personal data is being collected and transmitted to unknown parties. In some cases, you may not notice any symptoms at all, which is why it's essential to run regular virus scans and monitor your system for any suspicious activity.

  • Unwanted pop-ups and advertisements
  • Changes to your browser settings
  • Slow system performance
  • Crashing or freezing
  • Collection and transmission of personal data

How to Remove PUP.BoBrowser

  1. Boot your system in Safe Mode with Networking to prevent PUP.BoBrowser from loading and to allow you to download and install removal tools.
  2. Download and install a reputable anti-malware tool, such as SpyHunter, and run a full scan of your system to detect and remove PUP.BoBrowser and any other malware that may be present.
  3. Uninstall any suspicious programs that may be related to PUP.BoBrowser, as they may be bundled with the malware.
  4. Reset your browser settings to their default values to remove any changes made by PUP.BoBrowser. This includes resetting Chrome, Firefox, and Edge browsers.
  5. Reboot your system and run another scan with your anti-malware tool to ensure that PUP.BoBrowser has been completely removed.

Conclusion

Removing PUP.BoBrowser from your system is crucial to preventing any further damage and protecting your personal data. By following the steps outlined above, you can effectively remove this potentially unwanted program and restore your system to its normal state. It's also essential to take preventative measures to avoid future infections, such as being cautious when downloading software, avoiding suspicious links and emails, and keeping your operating system and software up to date. Remember to always use reputable anti-malware tools and to run regular virus scans to ensure your system remains safe and secure.

File System Details

PUP.BoBrowser may create the following file(s):
# File Name MD5 Detections
1. $R0EWC37.exe 05ad6dfec9d08f7b95a2b35c47a02f5b 3,788
2. ebf87fa7-b488-487f-9971-c96f16e9c35d.exe 27a97ec4bbd8987cb29f91c6e962542d 3,581
3. 64602c96-051b-4d8a-8830-268df7c6347d[1].exe fa8b58f49f253f326a45395c7d877f97 1,975
4. 5d28babe-55be-4a92-9019-4546fca07264.exe b623c528c20ec47dc4bf81c1216f4ef1 1,424
5. 976dea09-70e4-46c4-be44-4abacd4f363c.exe d657be6cb7dd57784742aed0bc303bbb 944
6. c2646b6d-4adc-4d7e-96e9-4d4fce8f2602[1].exe c5d597dea24509ffa0c69e0dba391b01 337
7. YR4OWd1nXIOtrnSM83Kt9Lxtz99OBYR4OWd1nXIOtrnSM83Kt9Lxtz99OB_bb.exe d8888771dcdea6b811d199c9b7193bcc 300
8. bobrowser_3010-10494ef2.exe 4d42a1035eff6126b2bd9c75310def8e 31
9. ClaraUpdater.exe.vir 09faa5eb732d7d4e2b38ce791bc6212e 27
10. BoBrowser.exe 5300c9b559273485eb12e0d7678a0fa0 9
11. BoBrowser(1).exe 9b8273408ac4d0b3b7d4ffbc9e7b8162 7
12. ClaraUpdater.exe 70d5fdd21c8ac15c3ee8d2ab24e4e3cf 2
More files

Registry Details

PUP.BoBrowser may create the following registry entry or registry entries:
CLSID
{19041B6B-8F97-4669-BA21-C17572737ED2}
File name without path
BoBrowser.lnk
claraInstaller.txt
http_isearch.bobrowser.com_0.localstorage
http_isearch.bobrowser.com_0.localstorage-journal
http_www.bobrowser.com_0.localstorage
http_www.bobrowser.com_0.localstorage-journal
Regexp file mask
%windir%\System32\Tasks\Run_Bobby_Browser
Software\BoBrowser
SOFTWARE\Classes\.htm\OpenWithProgIds\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.htm\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.html\OpenWithProgIds\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.html\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.shtml\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.shtml\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.webp\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.webp\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.xht\OpenWithProgIds\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.xht\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.xhtml\OpenWithProgIds\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Classes\.xhtml\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Classes\Applications\bobrowser.exe
Software\Classes\CLSID\19041B6B-8F97-4669-BA21-C17572737ED2
Software\Classes\Wow6432Node\CLSID\19041B6B-8F97-4669-BA21-C17572737ED2
SOFTWARE\Microsoft\MediaPlayer\ShimInclusionList\bobrowser.exe
SOFTWARE\Microsoft\RADAR\HeapLeakDetection\DiagnosedApplications\bobrowser.exe
SOFTWARE\Microsoft\Tracing\BoBrowser_RASAPI32
SOFTWARE\Microsoft\Tracing\BoBrowser_RASMANCS
SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Run_Bobby_Browser
SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\bobrowser.exe
SOFTWARE\Microsoft\Windows\CurrentVersion\ApplicationAssociationToasts\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ_http
SOFTWARE\Microsoft\Windows\CurrentVersion\ApplicationAssociationToasts\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ_https
Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.htm\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.html\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.jpeg\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.jpg\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.shtml\OpenWithProgids\BoBrowsHTM.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.shtml\OpenWithProgids\BoBrowsHTML.NSJA6BHDA3NCFCFMXW3QSCUYUQ
Software\Microsoft\Windows\CurrentVersion\Run\BoBrowser
Software\Microsoft\Windows\CurrentVersion\Run\CrashService
SOFTWARE\RegisteredApplications\BoBrowser.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SOFTWARE\Wow6432Node\Microsoft\MediaPlayer\ShimInclusionList\bobrowser.exe
SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\bobrowser.exe
SOFTWARE\Wow6432Node\RegisteredApplications\BoBrowser.NSJA6BHDA3NCFCFMXW3QSCUYUQ
SYSTEM\ControlSet001\services\ClaraUpdater
SYSTEM\ControlSet002\services\ClaraUpdater
SYSTEM\CurrentControlSet\services\ClaraUpdater

Directories

PUP.BoBrowser may create the following directory or directories:

%APPDATA%\Microsoft\Windows\Start Menu\Programs\BoBrowser
%COMMONPROGRAMFILES%\ClaraUpdater
%COMMONPROGRAMFILES(x86)%\ClaraUpdater
%LOCALAPPDATA%\BoBrowser
%LOCALAPPDATA%\BoBrowserUninstall
%PROGRAMFILES%\Bobrowsercm
%PROGRAMFILES(x86)%\Bobrowsercm
%TEMP%\BoBrowser
%UserProfile%\Local Settings\Application Data\BoBrowser