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What is Logic Search? The Malwarebytes research team has determined that Logic Search 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. This particular one is a search hijacker and uses web push notifications. How do I know if my computer is affected by Logic Search? You may see this entry in your list of installed Chrome extensions: and these warnings during install: You will see this icon in your Chrome menu-bar: and this changed setting: How did Logic Search get on my computer? Browser hijackers use different methods for distributing themselves. This particular one was downloaded from the webstore: after a redirect from their website: How do I remove Logic Search? Our program Malwarebytes can detect and remove this potentially unwanted program. Please download Malwarebytes for Windows to your desktop. Double-click MBSetup.exe and follow the prompts to install the program. When your Malwarebytes for Windows installation completes, the program opens to the Welcome to Malwarebytes screen. Click on the Get started button. Click Scan to start a Threat Scan. When the scan is finished click Quarantine to remove the found threats. Reboot the system if prompted to complete the removal process. Is there anything else I need to do to get rid of Logic Search? No, Malwarebytes removes Logic Search completely. If you have allowed the notifications you can read here how to disable them. How would the full version of Malwarebytes 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 would have protected you against the Logic Search hijacker. It would have blocked their website, giving you a chance to stop before it became too late. Technical details for experts Possible signs in FRST logs: CHR Notifications: Default -> hxxps://install.logic-search.com CHR DefaultSearchURL: Default -> hxxps://feed.logic-search.com/?q={searchTerms}&publisher=logicsearch&barcodeid=568600000000000 CHR DefaultSearchKeyword: Default -> LogicSearch CHR DefaultSuggestURL: Default -> hxxps://api.logic-search.com/suggest/get?q={searchTerms} CHR Extension: (LogicSearch) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\hfkbcpmpalppapmblbdjjjbnjkpokmhn [2020-04-14] 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\hfkbcpmpalppapmblbdjjjbnjkpokmhn\1.1.0_0 Adds the file manifest.json"="4/14/2020 8:54 AM, 2069 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\hfkbcpmpalppapmblbdjjjbnjkpokmhn\1.1.0_0\_metadata Adds the file computed_hashes.json"="4/14/2020 8:54 AM, 11681 bytes, A Adds the file verified_contents.json"="2/25/2020 3:10 PM, 1921 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\hfkbcpmpalppapmblbdjjjbnjkpokmhn\1.1.0_0\images\icons Adds the file 128x128.png"="4/14/2020 8:54 AM, 6189 bytes, A Adds the file 16x16.png"="4/14/2020 8:54 AM, 731 bytes, A Adds the file 64x64.png"="4/14/2020 8:54 AM, 3006 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\hfkbcpmpalppapmblbdjjjbnjkpokmhn\1.1.0_0\scripts Adds the file background.js"="2/25/2020 3:10 PM, 998819 bytes, A Adds the file sitecontent.js"="2/25/2020 3:10 PM, 77 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn Adds the file 000003.log"="4/14/2020 8:57 AM, 816 bytes, A Adds the file CURRENT"="4/14/2020 8:54 AM, 16 bytes, A Adds the file LOCK"="4/14/2020 8:54 AM, 0 bytes, A Adds the file LOG"="4/14/2020 8:58 AM, 183 bytes, A Adds the file MANIFEST-000001"="4/14/2020 8:54 AM, 41 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Web Applications\_crx_hfkbcpmpalppapmblbdjjjbnjkpokmhn Adds the file Logic Search.ico"="4/14/2020 8:54 AM, 187617 bytes, A Adds the file Logic Search.ico.md5"="4/14/2020 8:54 AM, 16 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings] "hfkbcpmpalppapmblbdjjjbnjkpokmhn"="REG_SZ", "AED394B986434E8B27B1E055A583F5593C75DEC54678AD9E24C2C1293D4ACBB7" Malwarebytes log: Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 4/14/20 Scan Time: 9:05 AM Log File: 63346b7e-7e1e-11ea-8af4-00ffdcc6fdfc.json -Software Information- Version: 4.1.0.56 Components Version: 1.0.867 Update Package Version: 1.0.22436 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: 233481 Threats Detected: 14 Threats Quarantined: 14 Time Elapsed: 11 min, 53 sec -Scan Options- Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Disabled 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.LogicSearch, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|hfkbcpmpalppapmblbdjjjbnjkpokmhn, Quarantined, 15131, 790796, , , , Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 2 PUP.Optional.LogicSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn, Quarantined, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\HFKBCPMPALPPAPMBLBDJJJBNJKPOKMHN, Quarantined, 15131, 790796, 1.0.22436, , ame, File: 11 PUP.Optional.LogicSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn\000003.log, Quarantined, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn\CURRENT, Quarantined, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn\LOCK, Quarantined, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn\LOG, Quarantined, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\hfkbcpmpalppapmblbdjjjbnjkpokmhn\MANIFEST-000001, Quarantined, 15131, 790796, , , , PUP.Optional.LogicSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\HFKBCPMPALPPAPMBLBDJJJBNJKPOKMHN\1.1.0_0\MANIFEST.JSON, Quarantined, 15131, 790796, 1.0.22436, , ame, PUP.Optional.PushNotifications, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, 214, 789449, 1.0.22436, , ame, PUP.Optional.PushNotifications, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 214, 789449, 1.0.22436, , ame, PUP.Optional.PushNotifications, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 214, 789449, 1.0.22436, , ame, 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. 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