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Removal instructions for Pass to Post

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Metallica

Metallica

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What is Pass to Post?

The Malwarebytes research team has determined that Pass to Post is a browser hijacker. These so-called "hijackers" manipulate your browser(s), for example to change your startpage or searchscopes, so that the affected browser visits their site or one of their choice. This one also displays advertisements.

How do I know if my computer is effected by Pass to Post?

This is how the first screen of the installer looks:

main.png

And you may see these browser extensions/add-ons:

warning1.png
Firefox disables the unsigned Extension

warning2.png

and this entry in your list of installed programs:

warning4.png

How did Pass to Post get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was bundled with other software.

How do I remove Pass to Post?

Our program Malwarebytes Anti-Malware can detect and remove this potentially unwanted application.
  • 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 Pass to Post?
  • No, Malwarebytes Anti-Malware removes Pass to Post completely.
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 Pass to Post hijacker. It would have warned you before the application could install itself, giving you a chance to stop it before it became too late.
 

protection1.png


Technical details for experts

Possible signs in FRST logs:
  
 BHO-x32: Pass to Post -> {929cccaf-39fb-4c5c-a66d-fa20f854b710} -> C:\Program Files (x86)\Pass to Post\Extensions\929cccaf-39fb-4c5c-a66d-fa20f854b710.dll [2016-03-10] ()
 FF Extension: Pass to Post - C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\Extensions\firefox@www.getpasstopost.com.xpi [2016-03-11] [not signed]
 C:\Program Files (x86)\Pass to Post

Pass to Post (HKLM-x32\...\Pass to Post) (Version: 2.0.5913.39968 - Pass to Post) <==== ATTENTION
Alterations made by the installer: 
File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Program Files (x86)\Pass to Post
       Adds the file 7za.exe"="3/9/2016 3:59 AM, 536064 bytes, A
       Adds the file Uninstaller.exe"="3/11/2016 7:12 AM, 366897 bytes, A
    Adds the folder C:\Program Files (x86)\Pass to Post\Extensions
       Adds the file 929cccaf-39fb-4c5c-a66d-fa20f854b710.dll"="3/10/2016 6:25 PM, 137728 bytes, A
       Adds the file firefox@www.getpasstopost.com.xpi"="3/11/2016 2:26 AM, 9422 bytes, A
    Adds the folder C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions
       Adds the file firefox@www.getpasstopost.com.xpi"="3/11/2016 2:26 AM, 9422 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}]
       "(Default)"="REG_SZ", "IPasstoPostBHO"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}\ProxyStubClsid32]
       "(Default)"="REG_SZ", "{00020424-0000-0000-C000-000000000046}"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}\TypeLib]
       "(Default)"="REG_SZ", "{83D57CFC-E73D-4F43-96F4-DB40DC13C630}"
       "Version"="REG_SZ", "1.0"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{83D57CFC-E73D-4F43-96F4-DB40DC13C630}\1.0]
       "(Default)"="REG_SZ", "PasstoPostIEClientLib"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{83D57CFC-E73D-4F43-96F4-DB40DC13C630}\1.0\0\win32]
       "(Default)"="REG_SZ", "C:\Program Files (x86)\Pass to Post\Extensions\929cccaf-39fb-4c5c-a66d-fa20f854b710.dll"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{83D57CFC-E73D-4F43-96F4-DB40DC13C630}\1.0\FLAGS]
       "(Default)"="REG_SZ", "0"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{83D57CFC-E73D-4F43-96F4-DB40DC13C630}\1.0\HELPDIR]
       "(Default)"="REG_SZ", "C:\Program Files (x86)\Pass to Post\Extensions"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}]
       "(Default)"="REG_SZ", "Pass to Post"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}\InprocServer32]
       "(Default)"="REG_SZ", "C:\Program Files (x86)\Pass to Post\Extensions\929cccaf-39fb-4c5c-a66d-fa20f854b710.dll"
       "ThreadingModel"="REG_SZ", "Apartment"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}\Programmable]
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}\TypeLib]
       "(Default)"="REG_SZ", "{83d57cfc-e73d-4f43-96f4-db40dc13c630}"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}\Version]
       "(Default)"="REG_SZ", "1.0"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BECFD49B-FA50-441D-8C4E-B84EEA87FAC9}]
       "(Default)"="REG_SZ", "1"
       "{BECFD49B-FA50-441D-8C4E-B84EEA87FAC9}"="REG_SZ", "{BECFD49B-FA50-441D-8C4E-B84EEA87FAC9}"
       "1"="REG_SZ", ""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}]
       "(Default)"="REG_SZ", "55858534-60c7-4a1c-ba6b-5e7cd9ba4cd5"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}]
       "(Default)"="REG_SZ", "IPasstoPostBHO"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}\ProxyStubClsid32]
       "(Default)"="REG_SZ", "{00020424-0000-0000-C000-000000000046}"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}\TypeLib]
       "(Default)"="REG_SZ", "{83D57CFC-E73D-4F43-96F4-DB40DC13C630}"
       "Version"="REG_SZ", "1.0"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{929cccaf-39fb-4c5c-a66d-fa20f854b710}]
       "(Default)"="REG_SZ", "Pass to Post"
       "NoExplorer"="REG_DWORD", 1
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Pass to Post]
       "DisplayIcon"="REG_SZ", ""C:\Program Files (x86)\Pass to Post\uninstaller.exe""
       "DisplayName"="REG_SZ", "Pass to Post"
       "DisplayVersion"="REG_SZ", "2.0.5913.39968"
       "EstimatedSize"="REG_DWORD", 1025
       "HelpLink"="REG_SZ", "mailto:support@getpasstopost.com"
       "InstallDate"="REG_SZ", "20160311"
       "InstallLocation"="REG_SZ", "C:\Program Files (x86)\Pass to Post"
       "NoModify"="REG_DWORD", 1
       "NoRepair"="REG_DWORD", 1
       "Publisher"="REG_SZ", "Pass to Post"
       "QuietUninstallString"="REG_SZ", ""C:\Program Files (x86)\Pass to Post\uninstaller.exe""
       "UninstallString"="REG_SZ", ""C:\Program Files (x86)\Pass to Post\uninstaller.exe""
       "URLInfoAbout"="REG_SZ", "http://www.getpasstopost.com/support"
       "URLUpdateInfo"="REG_SZ", "http://www.getpasstopost.com"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\PasstoPost]
       "cg"="REG_SZ", "55858534-60c7-4a1c-ba6b-5e7cd9ba4cd5"
Malwarebytes Anti-Malware log: 
Malwarebytes Anti-Malware
www.malwarebytes.org

Scan Date: 3/11/2016
Scan Time: 8:39 AM
Logfile: mbamPassToPost.txt
Administrator: Yes

Version: 2.2.0.1024
Malware Database: v2016.03.11.01
Rootkit Database: v2016.02.27.01
License: Premium
Malware Protection: Disabled
Malicious Website Protection: Enabled
Self-protection: Disabled

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

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 369737
Time Elapsed: 4 min, 48 sec

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

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 17
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{929cccaf-39fb-4c5c-a66d-fa20f854b710}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\TYPELIB\{83d57cfc-e73d-4f43-96f4-db40dc13c630}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\INTERFACE\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\INTERFACE\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\INTERFACE\{E240B517-52C6-4F80-9C5F-0ACC3728BD52}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\TYPELIB\{83d57cfc-e73d-4f43-96f4-db40dc13c630}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\TYPELIB\{83d57cfc-e73d-4f43-96f4-db40dc13c630}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{929CCCAF-39FB-4C5C-A66D-FA20F854B710}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\SETTINGS\{929CCCAF-39FB-4C5C-A66D-FA20F854B710}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\STATS\{929CCCAF-39FB-4C5C-A66D-FA20F854B710}, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{BECFD49B-FA50-441D-8C4E-B84EEA87FAC9}, Quarantined, [89f4cbbb3960c373e20cbed6f210c43c], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{BECFD49B-FA50-441D-8C4E-B84EEA87FAC9}, Quarantined, [89f4cbbb3960c373e20cbed6f210c43c], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}, Quarantined, [4c31c2c43f5afb3b9e74365f2cd63cc4], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}, Quarantined, [4c31c2c43f5afb3b9e74365f2cd63cc4], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\PasstoPost, Quarantined, [a8d5d8ae148548ee51521d6632d29868], 
PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\Pass to Post, Quarantined, [9ae30383d5c42c0aecb6e99a659fcb35], 

Registry Values: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Folders: 3
PUP.Optional.Yontoo, C:\Program Files (x86)\Pass to Post, Quarantined, [b3ca14722a6f171f213f52bdbe457090], 
PUP.Optional.Yontoo, C:\Program Files (x86)\Pass to Post\Extensions, Quarantined, [b3ca14722a6f171f213f52bdbe457090], 
PUP.Optional.Yontoo, C:\Users\{username}\AppData\Local\Temp\Pass to Post, Quarantined, [85f8434352476bcb3d240d02828155ab], 

Files: 6
PUP.Optional.Yontoo, C:\Program Files (x86)\Pass to Post\Extensions\929cccaf-39fb-4c5c-a66d-fa20f854b710.dll, Quarantined, [3647bdc93366290dc247b5df738fb54b], 
PUP.Optional.Yontoo, C:\Users\{username}\Desktop\PassToPost.exe, Quarantined, [5b22b6d06c2d1224fa2df50307fa35cb], 
PUP.Optional.Yontoo, C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions\firefox@www.getpasstopost.com.xpi, Quarantined, [6b129fe773268fa7f5a99ee5897bba46], 
PUP.Optional.Yontoo, C:\Program Files (x86)\Pass to Post\7za.exe, Quarantined, [b3ca14722a6f171f213f52bdbe457090], 
PUP.Optional.Yontoo, C:\Program Files (x86)\Pass to Post\Uninstaller.exe, Quarantined, [b3ca14722a6f171f213f52bdbe457090], 
PUP.Optional.Yontoo, C:\Program Files (x86)\Pass to Post\Extensions\firefox@www.getpasstopost.com.xpi, Quarantined, [b3ca14722a6f171f213f52bdbe457090], 

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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