What is Pro Speed Check?
The Malwarebytes research team has determined that Pro Speed Check is a search 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.
How do I know if my computer is affected by Pro Speed Check?
You may see this entry in your list of installed Chrome extensions:

and these warnings during install:




this changed setting:

and you will see this icons in your Chrome menu-bar:

How did Pro Speed Check get on my computer?
Browser hijackers use different methods for distributing themselves. This particular one was downloaded from the webstore:

after a redirect by their website:

How do I remove Pro Speed Check?
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.
- No, Malwarebytes removes Pro Speed Check completely.
We hope our application and this guide have helped you eradicate this hijacker.
As you can see below the full version of Malwarebytes would have protected you against the Pro Speed Check hijacker. It would have blocked their website, giving you a chance to stop it before it became too late.
Technical details for experts
Possible signs in FRST logs:
CHR DefaultSearchURL: Default -> hxxp://feed.prospeedcheck.com/?q={searchTerms}&publisher=prospeedcheck&barcodeid=537580000000000 CHR DefaultSearchKeyword: Default -> ProSpeedCheck CHR DefaultSuggestURL: Default -> hxxp://suggest.prospeedcheck.com/suggest/get?q={searchTerms} CHR Extension: (ProSpeedCheck) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk [2018-11-09]Alterations made by the installer:
File system details [View: All details] (Selection) --------------------------------------------------- Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0 Adds the file closer.js"="10/21/2018 9:58 AM, 15 bytes, A Adds the file manifest.json"="11/9/2018 8:58 AM, 2326 bytes, A Adds the file popup.html"="10/21/2018 9:58 AM, 1159 bytes, A Adds the file tab.html"="10/21/2018 9:58 AM, 165 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\_metadata Adds the file computed_hashes.json"="11/9/2018 8:58 AM, 2561 bytes, A Adds the file verified_contents.json"="10/21/2018 9:58 AM, 2947 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images Adds the file how-1.png"="10/21/2018 9:58 AM, 2862 bytes, A Adds the file how-2.png"="10/21/2018 9:58 AM, 3247 bytes, A Adds the file logo-small.png"="10/21/2018 9:58 AM, 3327 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\icons Adds the file 128x128.png"="11/9/2018 8:58 AM, 10399 bytes, A Adds the file 16x16.png"="11/9/2018 8:58 AM, 744 bytes, A Adds the file 64x64.png"="11/9/2018 8:58 AM, 5141 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\scripts Adds the file background.js"="10/21/2018 9:58 AM, 30765 bytes, A Adds the file jquery-3.3.1.min.js"="10/21/2018 9:58 AM, 86927 bytes, A Adds the file popup.js"="10/21/2018 9:58 AM, 677 bytes, A Adds the file sitecontent.js"="10/21/2018 9:58 AM, 77 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\styles Adds the file popup.css"="10/21/2018 9:58 AM, 1270 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Web Applications\_crx_nognlmgiboflbpbfhhpaapgkhegnnekk Adds the file Pro Speed Check.ico"="11/9/2018 8:58 AM, 198198 bytes, A Adds the file Pro Speed Check.ico.md5"="11/9/2018 8:58 AM, 16 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings] "nognlmgiboflbpbfhhpaapgkhegnnekk"="REG_SZ", "852F15E63B2F8C36D348771E79B0605A251A2D856CDC7F42E240C95B13DDC9B3"Malwarebytes log:
Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 11/9/18 Scan Time: 9:11 AM Log File: 12b12538-e3f7-11e8-a46c-00ffdcc6fdfc.json -Software Information- Version: 3.6.1.2711 Components Version: 1.0.482 Update Package Version: 1.0.7761 License: Premium -System Information- OS: Windows 7 Service Pack 1 CPU: x64 File System: NTFS User: {computername}\{username} -Scan Summary- Scan Type: Threat Scan Scan Initiated By: Manual Result: Completed Objects Scanned: 238151 Threats Detected: 29 Threats Quarantined: 29 Time Elapsed: 3 min, 15 sec -Scan Options- Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Enabled Heuristics: Enabled PUP: Detect PUM: Detect -Scan Details- Process: 0 (No malicious items detected) Module: 0 (No malicious items detected) Registry Key: 0 (No malicious items detected) Registry Value: 1 PUP.Optional.ProSpeedCheck, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|nognlmgiboflbpbfhhpaapgkhegnnekk, Quarantined, [248], [594739],1.0.7761 Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 7 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\icons, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\_metadata, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\scripts, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\styles, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\EXTENSIONS\nognlmgiboflbpbfhhpaapgkhegnnekk, Quarantined, [248], [594739],1.0.7761 File: 21 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\icons\128x128.png, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\icons\16x16.png, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\icons\64x64.png, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\how-1.png, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\how-2.png, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\images\logo-small.png, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\scripts\background.js, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\scripts\jquery-3.3.1.min.js, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\scripts\popup.js, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\scripts\sitecontent.js, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\styles\popup.css, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\_metadata\computed_hashes.json, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\_metadata\verified_contents.json, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\closer.js, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\manifest.json, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\popup.html, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nognlmgiboflbpbfhhpaapgkhegnnekk\1.0.1_0\tab.html, Quarantined, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, [248], [594739],1.0.7761 PUP.Optional.ProSpeedCheck, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [248], [594740],1.0.7761 PUP.Optional.ProSpeedCheck, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [248], [594740],1.0.7761 Physical Sector: 0 (No malicious items detected) WMI: 0 (No malicious items detected) (end)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