What is SerialTrunc?
The Malwarebytes research team has determined that SerialTrunc is a browser hijacker. These so-called "hijackers" alter your startpage or searchscopes so that the effected browser visits their site or one of their choice. This one uses a Browser Helper Object or Add-on that influences your search results.
How do I know if my computer is effected by SerialTrunc?
During install you may see this warning :
And you may see these add-ons:
How did SerialTrunc get on my computer?
Browser hijackers use different methods for distributing themselves. This particular one was bundled with other software.
How do I remove SerialTrunc?
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-consumer.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.
- 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 SerialTrunc?
- No, but to disable the Firefox add-on you will need Malwarebytes Anti-Malware 2.00 beta or newer.
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 SerialTrunc rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.
Signs in a HijackThis log:
O2 - BHO: SerialTrunc - {e76b4f24-4a2f-4e65-ad36-e2aa934e547c} - C:\Program Files\SerialTrunc\SerialTruncbho.dll O23 - Service: Update SerialTrunc - Unknown owner - C:\Program Files\SerialTrunc\updateSerialTrunc.exe
Alterations made by the installer:
File system details [View: All details] (All) --------------------------------------------- Adds the folder C:\Program Files\SerialTrunc Adds the file SerialTrunc.ico"="1/25/2014 4:12 AM, 1150 bytes, A Adds the file SerialTruncBHO.dll"="1/25/2014 4:12 AM, 249632 bytes, A Adds the file SerialTruncUninstall.exe"="2/5/2014 6:42 AM, 240149 bytes, A Adds the file updateSerialTrunc.exe"="1/25/2014 4:12 AM, 102176 bytes, A Adds the file updateSerialTrunc.InstallState"="2/5/2014 6:42 AM, 5012 bytes, A Adds the folder C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\joxsq3f5.default\extensions Adds the file {47351c22-0d6c-4658-a617-795d251145e2}.xpi"="1/25/2014 4:12 AM, 9093 bytes, A Registry details [View: All details] (All) ------------------------------------------ [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1AA60054-57D9-4F99-9A55-D0FBFBE7ECD3}] "(Default)"="REG_SZ, "248D1CEA-6734-4E5B-A5A9-A2CF6648E779" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4AA46D49-459F-4358-B4D1-169048547C23}] "(Default)"="REG_SZ, "59928828-78B3-4172-8611-A682A8B5C820" "id"="REG_SZ, "131" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}] "(Default)"="REG_SZ, "SerialTrunc" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}\InprocServer32] "(Default)"="REG_SZ, "C:\Program Files\SerialTrunc\SerialTruncbho.dll" "ThreadingModel"="REG_SZ, "Apartment" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}\Programmable] [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}\TypeLib] "(Default)"="REG_SZ, "{033a4be2-42b1-4acb-a69f-d362922136f0}" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}\Version] "(Default)"="REG_SZ, "1.0" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6BA82436-C754-4B49-B6AD-075AFA9FC625}] "(Default)"="REG_SZ, "ISerialTruncBHO" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6BA82436-C754-4B49-B6AD-075AFA9FC625}\ProxyStubClsid] "(Default)"="REG_SZ, "{00020424-0000-0000-C000-000000000046}" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6BA82436-C754-4B49-B6AD-075AFA9FC625}\ProxyStubClsid32] "(Default)"="REG_SZ, "{00020424-0000-0000-C000-000000000046}" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6BA82436-C754-4B49-B6AD-075AFA9FC625}\TypeLib] "(Default)"="REG_SZ, "{033A4BE2-42B1-4ACB-A69F-D362922136F0}" "Version"="REG_SZ, "1.0" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{033A4BE2-42B1-4ACB-A69F-D362922136F0}\1.0] "(Default)"="REG_SZ, "SerialTruncIEClientLib" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{033A4BE2-42B1-4ACB-A69F-D362922136F0}\1.0\0\win32] "(Default)"="REG_SZ, "C:\Program Files\SerialTrunc\SerialTruncbho.dll" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{033A4BE2-42B1-4ACB-A69F-D362922136F0}\1.0\FLAGS] "(Default)"="REG_SZ, "0" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{033A4BE2-42B1-4ACB-A69F-D362922136F0}\1.0\HELPDIR] "(Default)"="REG_SZ, "C:\Program Files\SerialTrunc" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\updateSerialTrunc_RASAPI32] "ConsoleTracingMask"="REG_DWORD, -65536 "EnableConsoleTracing"="REG_DWORD, 0 "EnableFileTracing"="REG_DWORD, 0 "FileDirectory"="REG_EXPAND_SZ, "%windir%\tracing" "FileTracingMask"="REG_DWORD, -65536 "MaxFileSize"="REG_DWORD, 1048576 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\updateSerialTrunc_RASMANCS] "ConsoleTracingMask"="REG_DWORD, -65536 "EnableConsoleTracing"="REG_DWORD, 0 "EnableFileTracing"="REG_DWORD, 0 "FileDirectory"="REG_EXPAND_SZ, "%windir%\tracing" "FileTracingMask"="REG_DWORD, -65536 "MaxFileSize"="REG_DWORD, 1048576 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}] "(Default)"="REG_SZ, "SerialTrunc" "NoExplorer"="REG_DWORD, 1 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SerialTrunc] "DisplayIcon"="REG_SZ, "C:\Program Files\SerialTrunc\SerialTrunc.ico" "DisplayName"="REG_SZ, "SerialTrunc" "DisplayVersion"="REG_SZ, "2014.01.25.024532" "EstimatedSize"="REG_DWORD, 349 "HelpLink"="REG_SZ, "mailto:[email protected]" "InstallLocation"="REG_SZ, "C:\Program Files\SerialTrunc" "NoModify"="REG_DWORD, 1 "NoRepair"="REG_DWORD, 1 "Publisher"="REG_SZ, "SerialTrunc" "QuietUninstallString"="REG_SZ, "C:\Program Files\SerialTrunc\SerialTruncuninstall.exe /S" "UninstallString"="REG_SZ, "C:\Program Files\SerialTrunc\SerialTruncuninstall.exe" "URLInfoAbout"="REG_SZ, "http://serialtrunc.com/support" "URLUpdateInfo"="REG_SZ, "http://serialtrunc.com" [HKEY_LOCAL_MACHINE\SOFTWARE\SerialTrunc\Chrome] "sgc"="REG_SZ, "true" [HKEY_LOCAL_MACHINE\SOFTWARE\SerialTrunc\Firefox] "sff"="REG_SZ, "false" [HKEY_LOCAL_MACHINE\SOFTWARE\SerialTrunc\Internet Explorer] "sie"="REG_SZ, "false" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Update SerialTrunc] "DisplayName"="REG_SZ, "Update SerialTrunc" "ErrorControl"="REG_DWORD, 1 "FailureActions"="REG_BINARY, ...................... "ImagePath"="REG_EXPAND_SZ, ""C:\Program Files\SerialTrunc\updateSerialTrunc.exe"" "ObjectName"="REG_SZ, "LocalSystem" "Start"="REG_DWORD, 2 "Type"="REG_DWORD, 16 [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Approved Extensions] "{E76B4F24-4A2F-4E65-AD36-E2AA934E547C}"="REG_BINARY, ............ [HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Persisted] "C:\Users\Malwarebytes\Desktop\SerialTrunc.exe"="REG_DWORD, 1 [HKEY_CURRENT_USER\Software\SerialTrunc] "id"="REG_SZ, "2014-02-05 6:42:23" "iid"="REG_SZ, "def_SerialTrunc" "is"="REG_SZ, "def_SerialTrunc" [HKEY_CURRENT_USER\Software\SerialTrunc\Firefox] "ug"="REG_SZ, "4D7F6E75-C44F-4F69-B8D9-1E53D8C2539D" [HKEY_CURRENT_USER\Software\SerialTrunc\Internet Explorer] "ug"="REG_SZ, "6AAF5B15-A115-4A16-8064-A02949E64E84"
Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware www.malwarebytes.org Scan Date: 2/5/2014 Scan Time: 6:59:57 AM Filename: mbamlog.txt OS: Windows 7 Service Pack 1 CPU: x86 User: Malwarebytes File System: NTFS Version: 2.00.0.0502 Database: v2014.02.05.02 Administrator: true License: Trial Protection: true Scan Type: Threat Scan Result: Completed Objects Scanned: 189614 Time Elapsed: 5 min, 28 sec Memory: yes Startup: yes FileSystem: yes HeuristicsShuriken: yes Archives: yes PUP: yes PUM: yes Processes: 1 Modules: 0 (No malicious items detected) Registry Keys: 12 Registry Values: 0 (No malicious items detected) Registry Data: 0 (No malicious items detected) Folders: 1 Files: 6 process, PUP.Optional.SerialTrunc.A, delete-on-reboot, [b7df6e6a255584b21d99491a9869649c], C:\Program Files\SerialTrunc\updateSerialTrunc.exe, key, PUP.Optional.SerialTrunc.A, success, [b7df6e6a255584b21d99491a9869649c], HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\Update SerialTrunc, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKLM\SOFTWARE\CLASSES\CLSID\{e76b4f24-4a2f-4e65-ad36-e2aa934e547c}, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKLM\SOFTWARE\CLASSES\TYPELIB\{033a4be2-42b1-4acb-a69f-d362922136f0}, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKLM\SOFTWARE\CLASSES\INTERFACE\{6BA82436-C754-4B49-B6AD-075AFA9FC625}, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{E76B4F24-4A2F-4E65-AD36-E2AA934E547C}, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\SETTINGS\{E76B4F24-4A2F-4E65-AD36-E2AA934E547C}, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\STATS\{E76B4F24-4A2F-4E65-AD36-E2AA934E547C}, key, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], HKLM\SOFTWARE\CLASSES\CLSID\{E76B4F24-4A2F-4E65-AD36-E2AA934E547C}\INPROCSERVER32, key, PUP.Optional.BrowseFox.A, success, [9006a2365f1b5adc42ac3722e51dbc44], HKLM\SOFTWARE\CLASSES\CLSID\{4AA46D49-459F-4358-B4D1-169048547C23}, key, PUP.Optional.SerialTrunc.A, success, [2670c8101a60d2646f5e2a4523df916f], HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\SerialTrunc, key, PUP.Optional.SerialTrunc.A, success, [395dbc1cd1a9d85e59756e0170923ac6], HKCU\SOFTWARE\SerialTrunc, key, PUP.Optional.SerialTrunc.A, success, [b0e6c711e694e155834c70ff19e93cc4], HKLM\SOFTWARE\SerialTrunc, folder, PUP.Optional.SerialTrunc.A, delete-on-reboot, [2670c8101a60d2646f5e2a4523df916f], C:\Program Files\SerialTrunc, file, PUP.Optional.SerialTrunc.A, delete-on-reboot, [b7df6e6a255584b21d99491a9869649c], C:\Program Files\SerialTrunc\updateSerialTrunc.exe, file, PUP.Optional.SerialTrunc.A, success, [ade915c33c3e44f23d78b4af758c28d8], C:\Program Files\SerialTrunc\SerialTruncBHO.dll, file, PUP.Optional.SerialTrunc.A, success, [9105a6327ffbf145466ffa69fc0552ae], C:\Users\Malwarebytes\Desktop\SerialTrunc.exe, file, PUP.Optional.SerialTrunc.A, success, [2670c8101a60d2646f5e2a4523df916f], C:\Program Files\SerialTrunc\SerialTrunc.ico, file, PUP.Optional.SerialTrunc.A, success, [2670c8101a60d2646f5e2a4523df916f], C:\Program Files\SerialTrunc\SerialTruncUninstall.exe, file, PUP.Optional.SerialTrunc.A, success, [2670c8101a60d2646f5e2a4523df916f], C:\Program Files\SerialTrunc\updateSerialTrunc.InstallState, (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