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Removal instructions for BTclient

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Content is republished with permission from Malwarebytes.

What is BTclient?

The Malwarebytes research team has determined that BTclient 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 BTclient?

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


and these Scheduled Tasks:


How did BTclient get on my computer?

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

How do I remove BTclient?

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 everything is set to "Quarantine", and click Apply Actions.
  • Reboot your computer if prompted.
Is there anything else I need to do to get rid of BTclient?
  • No, Malwarebytes' Anti-Malware removes BTclient completely.
  • This PUP creates some scheduled tasks. You can read here how to 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 BTclient 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: [btclient] C:\Program Files\btclient\btclient\\btclient.exe
Possible signs in FRST logs:
 (Pay By Ads LTD) C:\Program Files\btclient\btclient\\btclient.exe
 HKCU\...\Run: [btclient] => C:\Program Files\btclient\btclient\\btclient.exe [644888 2015-03-13] (Pay By Ads LTD)

 Task: {24FBD65F-4A9F-47E7-9875-AB86ED6BF4BD} - System32\Tasks\btclient Updater => C:\Program Files\btclient\btclient\\btsetup.exe [2015-03-13] (Pay By Ads LTD)
 Task: {746D1707-3613-47D1-80EE-7AF55849BF5B} - System32\Tasks\btclient => C:\Program Files\btclient\btclient\\btclient.exe [2015-03-13] (Pay By Ads LTD)
Alterations made by the installer:
File system details  
    Adds the folder C:\Program Files\btclient\btclient\
       Adds the file 2gmjecmm.dll"="3/13/2015 8:44 AM, 289280 bytes, A
       Adds the file app.ini"="3/13/2015 8:44 AM, 508 bytes, A
       Adds the file btclient.exe"="3/13/2015 8:44 AM, 644888 bytes, A
       Adds the file btsetup.exe"="3/13/2015 8:44 AM, 448792 bytes, A
       Adds the file chromext64.dll"="3/13/2015 8:44 AM, 341504 bytes, A
       Adds the file hlpr64.exe"="3/13/2015 8:44 AM, 91648 bytes, A
       Adds the file pilpkplh.dll"="3/13/2015 8:44 AM, 305152 bytes, A
       Adds the file res.dll"="3/13/2015 8:44 AM, 203264 bytes, A
    In the existing folder C:\Windows\System32\Tasks
       Adds the file btclient"="3/13/2015 8:44 AM, 3466 bytes, A
       Adds the file btclient Updater"="3/13/2015 8:44 AM, 3464 bytes, A

Registry details  
       "APPORDR"="REG_SZ", "E0C58B66CE55A0F0"
       "country"="REG_SZ", ""
       "lng"="REG_SZ", ""
       "prm1"="REG_SZ", ""
       "prm2"="REG_SZ", ""
       "prm3"="REG_SZ", ""
       "prm4"="REG_SZ", ""
       "prm5"="REG_SZ", ""
       "btclient"="REG_SZ", "C:\Program Files\btclient\btclient\\btsetup.exe"
    [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION]
       "btclient.exe"="REG_DWORD", 19000
       "btsetup.exe"="REG_DWORD", 19000
       "btclient"="REG_SZ", "C:\Program Files\btclient\btclient\\btclient.exe"
       "DisplayIcon"="REG_SZ", ""C:\Program Files\btclient\btclient\\btsetup.exe""
       "DisplayName"="REG_SZ", "btclient"
       "NoModify"="REG_DWORD", 1
       "NoRepair"="REG_DWORD", 1
       "Publisher"="REG_SZ", "btclient"
       "UninstallString"="REG_SZ", ""C:\Program Files\btclient\btclient\\btsetup.exe" /uninstl"

Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware

Scan Date: 3/13/2015
Scan Time: 8:58:43 AM
Logfile: mbamBTclient.txt
Administrator: Yes

Malware Database: v2015.03.13.04
Rootkit Database: v2015.02.25.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled

OS: Windows 7 Service Pack 1
CPU: x86
File System: NTFS
User: Malwarebytes

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 294018
Time Elapsed: 3 min, 45 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 1
PUP.Optional.PayByAds.A, C:\Program Files\btclient\btclient\\btclient.exe, 2756, Delete-on-Reboot, [54b498ad7d0db284689e8e8dd63015eb]

Modules: 0
(No malicious items detected)

Registry Keys: 2
PUP.Optional.BTClient.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\BTCLIENT, Quarantined, [0cfc78cd8cfe3600bff52c7b1be807f9], 
PUP.Optional.KeepMySearch.A, HKCU_Classes\keepmysearch, Quarantined, [22e655f0ed9d999db8ace0da2cd77d83], 

Registry Values: 2
PUP.Optional.PayByAds.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN|btclient, C:\Program Files\btclient\btclient\\btclient.exe, Quarantined, [54b498ad7d0db284689e8e8dd63015eb]
PUP.Optional.BTClient.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\BTCLIENT|DisplayIcon, "C:\Program Files\btclient\btclient\\btsetup.exe", Quarantined, [0cfc78cd8cfe3600bff52c7b1be807f9]

Registry Data: 0
(No malicious items detected)

Folders: 2
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient, Delete-on-Reboot, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\, Delete-on-Reboot, [b5534005b2d871c5ac8136719d66db25], 

Files: 11
PUP.Optional.PayByAds.A, C:\Program Files\btclient\btclient\\btclient.exe, Delete-on-Reboot, [54b498ad7d0db284689e8e8dd63015eb], 
PUP.Optional.KeepMySearch.A, C:\Users\{username}\Desktop\BTclient.exe, Quarantined, [9e6a40053852290d8937c712fe07ee12], 
PUP.Optional.BTClient.A, C:\Windows\System32\Tasks\btclient Updater, Quarantined, [8e7acb7a1a70db5b9121dfc8ca3953ad], 
PUP.Optional.BTClient.A, C:\Windows\System32\Tasks\btclient, Quarantined, [5cac75d05832fd39387bcadd2bd8718f], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\2gmjecmm.dll, Quarantined, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\app.ini, Quarantined, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\btsetup.exe, Quarantined, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\chromext64.dll, Quarantined, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\hlpr64.exe, Quarantined, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\pilpkplh.dll, Quarantined, [b5534005b2d871c5ac8136719d66db25], 
PUP.Optional.BTClient.A, C:\Program Files\btclient\btclient\\res.dll, Quarantined, [b5534005b2d871c5ac8136719d66db25], 

Physical Sectors: 0
(No malicious items detected)

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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