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Removal instructions for RuntimeBroker

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What is RuntimeBroker?

The Malwarebytes research team has determined that RuntimeBroker is adware. These adware applications display advertisements not originating from the sites you are browsing.
This particualr one uses the Privoxy proxy to intercept and change your internet traffic.

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

You may see this setting has changed under Internet Options > Connections > LAN settings:


How did RuntimeBroker get on my computer?

Adware applications use different methods for distributing themselves. This particular one was installed by a trojan.

How do I remove RuntimeBroker?

Our program Malwarebytes can detect and remove this potentially unwanted program.
  • Please download Malwarebytes to your desktop.
  • Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  • Then click Finish.
  • Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  • If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  • 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 RuntimeBroker?
  • No, Malwarebytes removes RuntimeBroker completely.
How would the full version of Malwarebytes help protect me?

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

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



The web protection module also blocks some of the connections the installer tries to make:


Technical details for experts

Possible signs in FRST logs:
 (The Privoxy team - www.privoxy.org) C:\Windows\{username}-pc\oxy.exe
 ProxyEnable: [{user SID}] => Proxy is enabled.
 ProxyServer: [{user SID}] =>
 S2 RuntimeBroker; C:\Windows\{username}-pc\RuntimeBroker.exe [349184 2017-04-25] (www.kdsmarketing.com) [File not signed]
 R2 Telephone; C:\Windows\{username}-pc\oxy.exe [373248 2016-01-22] (The Privoxy team - www.privoxy.org) [File not signed]

() C:\Windows\{username}-pc\mgwz.dll
Alterations made by the installer:
File system details [View: All details] (Selection)
    Adds the folder C:\Windows\{username}-pc
       Adds the file config.txt"="3/28/2016 3:22 PM, 407 bytes, A
       Adds the file default.action"="2/7/2016 6:10 AM, 21 bytes, A
       Adds the file default.filter"="3/30/2017 4:35 AM, 114 bytes, A
       Adds the file mgwz.dll"="1/22/2016 4:45 AM, 86528 bytes, A
       Adds the file oxy.exe"="1/22/2016 4:45 AM, 373248 bytes, A
       Adds the file oxy.log"="6/30/2017 10:40 AM, 0 bytes, A
       Adds the file RuntimeBroker.exe"="4/25/2017 3:10 PM, 349184 bytes, A

Registry details [View: All details] (Selection)
       "DisplayVersion"="REG_SZ", "2.08"
       "DelayedAutostart"="REG_DWORD", 1
       "Description"="REG_SZ", "Helps protect users from Runtime Errors"
       "DisplayName"="REG_SZ", "RuntimeBroker"
       "ErrorControl"="REG_DWORD", 1
       "ImagePath"="REG_EXPAND_SZ, "C:\Windows\{username}-pc\RuntimeBroker.exe"
       "ObjectName"="REG_SZ", "LocalSystem"
       "Start"="REG_DWORD", 2
       "Type"="REG_DWORD", 16
       "WOW64"="REG_DWORD", 1
       "Description"="REG_SZ", "Provides Telephony API (TAPI) support for programs that control telephony devices on the local computer and, through the LAN, on servers that are also running the service."
       "DisplayName"="REG_SZ", "Telephone"
       "ErrorControl"="REG_DWORD", 1
       "ImagePath"="REG_EXPAND_SZ, "C:\Windows\{username}-pc\oxy.exe --service"
       "ObjectName"="REG_SZ", "LocalSystem"
       "Start"="REG_DWORD", 2
       "Type"="REG_DWORD", 16
       "WOW64"="REG_DWORD", 1
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
        REG_DWORD, 0 ==> REG_DWORD, 1
       "ProxyServer"="REG_SZ", ""
Malwarebytes log:

-Log Details-
Scan Date: 6/30/17
Scan Time: 10:58 AM
Log File: mbamOffers4U.txt
Administrator: Yes

-Software Information-
Components Version: 1.0.141
Update Package Version: 1.0.2261
License: Premium

-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {computername}\{username}

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 336715
Threats Detected: 19
Threats Quarantined: 19
Time Elapsed: 2 min, 20 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

-Scan Details-
Process: 1
Adware.Privoxy, C:\WINDOWS\{computername}\OXY.EXE, Quarantined, [1506], [385808],1.0.2261

Module: 1
Adware.Privoxy, C:\WINDOWS\{computername}\OXY.EXE, Quarantined, [1506], [385808],1.0.2261

Registry Key: 5
Trojan.SpamBot, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\RuntimeBroker, Delete-on-Reboot, [582], [402529],1.0.2261
Adware.Privoxy, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\TELEPHONE, Delete-on-Reboot, [1506], [385808],1.0.2261
Adware.Privoxy, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\Telephone, Delete-on-Reboot, [1506], [-1],0.0.0
Adware.Privoxy, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\RuntimeBroker, Delete-on-Reboot, [1506], [-1],0.0.0

Registry Value: 7
Adware.Privoxy, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\TELEPHONE|IMAGEPATH, Delete-on-Reboot, [1506], [385808],1.0.2261

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 0
(No malicious items detected)

File: 5
Trojan.SpamBot, C:\WINDOWS\{computername}\RUNTIMEBROKER.EXE, Delete-on-Reboot, [582], [402529],1.0.2261
Trojan.SpamBot, C:\USERS\{username}\DESKTOP\OFFERS.EXE, Delete-on-Reboot, [582], [402481],1.0.2261
Adware.Privoxy, C:\WINDOWS\{computername}\OXY.EXE, Delete-on-Reboot, [1506], [385808],1.0.2261
Adware.Privoxy, C:\WINDOWS\{computername}\oxy.exe, Delete-on-Reboot, [1506], [-1],0.0.0
Adware.Privoxy, C:\WINDOWS\{computername}\RuntimeBroker.exe, Delete-on-Reboot, [1506], [-1],0.0.0

Physical Sector: 0
(No malicious items detected)

As mentioned before the full version of Malwarebytes 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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