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Removal instructions for BBjoin

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What is BBjoin?

The Malwarebytes research team has determined that BBjoin is adware. These adware applications display advertisements not originating from the sites you are browsing.

How do I know if my computer is affected by BBjoin?

You may see this entry in your list of installed programs:


and you may see these Scheduled Tasks:


How did BBjoin get on my computer?

Adware applications use different methods for distributing themselves. This particular one was bundled with other software.

How do I remove BBjoin?

Our program Malwarebytes Anti-Malware can detect and remove this potentially unwanted program.

  • Please download Malwarebytes Anti-Malware to your desktop.
  • Double-click mbam-setup-version.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:
    • Enable free trial of Malwarebytes Anti-Malware Premium
    • Launch Malwarebytes Anti-Malware
  • Then click Finish.
  • If an update is found, you will be prompted to download and install the latest version.
  • Once the program has loaded, select Scan Now. Or select the Threat Scan from the Scan menu.
  • When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  • Restart your computer when prompted to do so.
Is there anything else I need to do to get rid of BBjoin?
  • No, Malwarebytes' Anti-Malware removes BBjoin completely.
  • This PUP creates some scheduled tasks. You can read here how to check for and, if necessary, remove Scheduled Tasks.
How would the full version of Malwarebytes Anti-Malware help protect me?

We hope our application and this guide have helped you eradicate this hijacker.

As you can see below the full version of Malwarebytes Anti-Malware would have protected you against the BBjoin adware. �It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.


Technical details for experts

You will see these signs in a HijackThis log:

O4 - HKCU\..\Run: [bbjoin_crr_uninst] C:\Program Files\bbjoin\bbjoin\\bbjoin.exe
Possible signs in FRST logs:

 (Pay By Ads LTD) C:\Program Files\bbjoin\bbjoin\\bbjoin.exe (Pay By Ads LTD) C:\Program Files\bbjoin\bbjoin\\bbjsetup.exe HKCU\...\Run: [bbjoin_crr_uninst] => C:\Program Files\bbjoin\bbjoin\\bbjoin.exe [647936 2015-04-27] (Pay By Ads LTD) () C:\Program Files\bbjoinbbjoin_crr_uninst (HKU\S-1-5-21-4016700205-1717049133-1125222536-1001\...\bbjoin_prdct_uninst) (Version:  - bbjoin_cmpny)Task: {952F523A-3413-4E5D-BD1B-6089FE584681} - System32\Tasks\bbjoin_crr_uninst Updater => C:\Program Files\bbjoin\bbjoin\\bbjsetup.exe [2015-04-27] (Pay By Ads LTD)Task: {EA7CB80F-20C0-493D-B6B0-39A39BC5B034} - System32\Tasks\bbjoin_crr_uninst => C:\Program Files\bbjoin\bbjoin\\bbjoin.exe [2015-04-27] (Pay By Ads LTD)
Alterations made by the installer:

File system details  ---------------------------------------------    Adds the folder C:\Program Files\bbjoin\bbjoin\       Adds the file app.ini"="4/27/2015 9:09 AM, 533 bytes, A       Adds the file bbjoin.exe"="4/27/2015 9:09 AM, 647936 bytes, A       Adds the file bbjsetup.exe"="4/27/2015 9:09 AM, 455424 bytes, A       Adds the file chromext64.dll"="4/27/2015 9:09 AM, 342016 bytes, A       Adds the file fj3mK9pm.dll"="4/27/2015 9:09 AM, 288256 bytes, A       Adds the file hlpr64.exe"="4/27/2015 9:09 AM, 91648 bytes, A       Adds the file iWekfeih.dll"="4/27/2015 9:09 AM, 305664 bytes, A       Adds the file res.dll"="4/27/2015 9:09 AM, 194560 bytes, A    In the existing folder C:\Windows\System32\Tasks       Adds the file bbjoin_crr_uninst"="4/27/2015 9:09 AM, 3454 bytes, A       Adds the file bbjoin_crr_uninst Updater"="4/27/2015 9:09 AM, 3458 bytes, ARegistry details  ------------------------------------------    [HKEY_CURRENT_USER\Software\Classes\keepmysearch\instl\data]       "APPORDR"="REG_SZ", "4BA8C7CBE64F92CC"       "country"="REG_SZ", ""       "lng"="REG_SZ", ""       "prm1"="REG_SZ", ""       "prm2"="REG_SZ", ""       "prm3"="REG_SZ", ""       "prm4"="REG_SZ", ""       "prm5"="REG_SZ", ""    [HKEY_CURRENT_USER\Software\Classes\keepmysearch\uninstl]       "bbjoin1"="REG_SZ", "C:\Program Files\bbjoin\bbjoin\\bbjsetup.exe"    [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION]       "bbjoin.exe"="REG_DWORD", 19000       "bbjsetup.exe"="REG_DWORD", 19000    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]       "bbjoin_crr_uninst"="REG_SZ", "C:\Program Files\bbjoin\bbjoin\\bbjoin.exe"    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\bbjoin_prdct_uninst]       "DisplayIcon"="REG_SZ", ""C:\Program Files\bbjoin\bbjoin\\bbjsetup.exe""       "DisplayName"="REG_SZ", "bbjoin_crr_uninst"       "NoModify"="REG_DWORD", 1       "NoRepair"="REG_DWORD", 1       "Publisher"="REG_SZ", "bbjoin_cmpny"       "UninstallString"="REG_SZ", ""C:\Program Files\bbjoin\bbjoin\\bbjsetup.exe" /uninstl"
Malwarebytes Anti-Malware log:

Malwarebytes Anti-Malwarewww.malwarebytes.orgScan Date: 4/27/2015Scan Time: 9:24:52 AMLogfile: mbamBBjoin.txtAdministrator: YesVersion: Database: v2015.04.26.05Rootkit Database: v2015.04.21.01License: FreeMalware Protection: DisabledMalicious Website Protection: DisabledSelf-protection: DisabledOS: Windows 7 Service Pack 1CPU: x86File System: NTFSUser: MalwarebytesScan Type: Threat ScanResult: CompletedObjects Scanned: 286917Time Elapsed: 3 min, 59 secMemory: EnabledStartup: EnabledFilesystem: EnabledArchives: EnabledRootkits: DisabledHeuristics: EnabledPUP: EnabledPUM: EnabledProcesses: 1PUP.Optional.PayByAds.A, C:\Program Files\bbjoin\bbjoin\\bbjoin.exe, 1592, Delete-on-Reboot, [0c21442d4149e2546a7969d424e27f81]Modules: 0(No malicious items detected)Registry Keys: 2PUP.Optional.KeepMySearch.A, HKCU_Classes\keepmysearch, Quarantined, [61cc5f128efc999d6ddcdefc778c20e0], PUP.Optional.BBJoin.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\bbjoin_prdct_uninst, Quarantined, [c469caa72862cd6928b59d27020126da], Registry Values: 1PUP.Optional.PayByAds.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN|bbjoin_crr_uninst, C:\Program Files\bbjoin\bbjoin\\bbjoin.exe, Quarantined, [0c21442d4149e2546a7969d424e27f81]Registry Data: 0(No malicious items detected)Folders: 2PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin, Delete-on-Reboot, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\, Delete-on-Reboot, [c469caa72862cd6928b59d27020126da], Files: 9PUP.Optional.PayByAds.A, C:\Program Files\bbjoin\bbjoin\\bbjoin.exe, Delete-on-Reboot, [0c21442d4149e2546a7969d424e27f81], PUP.Optional.KeepMySearch.SID.A, C:\Users\{username}\Desktop\BBjoin.exe, Quarantined, [b67776fb7812dd591e62bb8919ed14ec], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\app.ini, Quarantined, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\bbjsetup.exe, Delete-on-Reboot, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\chromext64.dll, Quarantined, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\fj3mK9pm.dll, Quarantined, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\hlpr64.exe, Quarantined, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\iWekfeih.dll, Quarantined, [c469caa72862cd6928b59d27020126da], PUP.Optional.BBJoin.A, C:\Program Files\bbjoin\bbjoin\\res.dll, Quarantined, [c469caa72862cd6928b59d27020126da], Physical Sectors: 0(No malicious items detected)(end)
As mentioned before the full version of Malwarebytes Anti-Malware could have protected your computer against this threat.

We use different ways of protecting your computer(s):

  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention
Save yourself the hassle and get protected.
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