What is Multy App?
The Malwarebytes research team has determined that Multy App 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 Multy App?
You may see this entry in your list of installed Chrome extensions:
and these warnings during install:
You will see this changed setting:
How did Multy App 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 Multy App?
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 Multy App 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 Multy App 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 -> hxxps://searchmulty.com/results.php?pub=2233&v=400&q={searchTerms} CHR DefaultSearchKeyword: Default -> Multy CHR DefaultSuggestURL: Default -> hxxps://searchmulty.com/gjson.php?q={searchTerms} CHR Extension: (Multy) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic [2019-04-11]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\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0 Adds the file background.js"="4/5/2019 1:16 PM, 4758 bytes, A Adds the file index.html"="7/26/2018 11:16 AM, 12982 bytes, A Adds the file manifest.json"="4/11/2019 8:22 AM, 1817 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\_metadata Adds the file computed_hashes.json"="4/11/2019 8:22 AM, 2975 bytes, A Adds the file verified_contents.json"="4/5/2019 1:22 PM, 2293 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\c Adds the file s.css"="7/26/2018 11:18 AM, 17980 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\icons Adds the file button.png"="4/11/2019 8:22 AM, 941 bytes, A Adds the file icon128.png"="4/11/2019 8:22 AM, 16644 bytes, A Adds the file icon48.png"="4/11/2019 8:22 AM, 253 bytes, A Adds the file icon64.png"="4/11/2019 8:22 AM, 5713 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\s Adds the file jquery.js"="8/2/2016 4:07 PM, 97166 bytes, A Adds the file s.js"="3/8/2019 1:56 PM, 61670 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Web Applications\_crx_bjbojaompnnjfoooanphgjogjaoenhic Adds the file Multy App.ico"="4/11/2019 8:22 AM, 229503 bytes, A Adds the file Multy App.ico.md5"="4/11/2019 8:22 AM, 16 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings] "bjbojaompnnjfoooanphgjogjaoenhic"="REG_SZ", "25703A3685FBA33B0A0ABDADBA81345C6D893C2CAA6E8D8F39CCF212EEF7595B"Malwarebytes log:
Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 4/11/19 Scan Time: 8:29 AM Log File: 2e60316c-5c23-11e9-bead-00ffdcc6fdfc.json -Software Information- Version: 3.7.1.2839 Components Version: 1.0.563 Update Package Version: 1.0.10100 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: 236515 Threats Detected: 26 Threats Quarantined: 26 Time Elapsed: 4 min, 43 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.SearchMulty.Generic, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|bjbojaompnnjfoooanphgjogjaoenhic, Quarantined, [14732], [605550],1.0.10100 Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 7 PUP.Optional.MultyApp, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\WEB APPLICATIONS\_crx_bjbojaompnnjfoooanphgjogjaoenhic, Quarantined, [4929], [660322],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\_metadata, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\icons, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\c, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\s, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\BJBOJAOMPNNJFOOOANPHGJOGJAOENHIC, Quarantined, [14732], [605550],1.0.10100 File: 18 PUP.Optional.MultyApp, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\WEB APPLICATIONS\_crx_bjbojaompnnjfoooanphgjogjaoenhic\Multy App.ico, Quarantined, [4929], [660322],1.0.10100 PUP.Optional.MultyApp, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Web Applications\_crx_bjbojaompnnjfoooanphgjogjaoenhic\Multy App.ico.md5, Quarantined, [4929], [660322],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\BJBOJAOMPNNJFOOOANPHGJOGJAOENHIC\1.2_0\MANIFEST.JSON, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\c\s.css, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\icons\button.png, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\icons\icon128.png, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\icons\icon48.png, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\icons\icon64.png, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\s\jquery.js, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\s\s.js, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\_metadata\computed_hashes.json, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\_metadata\verified_contents.json, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\background.js, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty.Generic, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjbojaompnnjfoooanphgjogjaoenhic\1.2_0\index.html, Quarantined, [14732], [605550],1.0.10100 PUP.Optional.SearchMulty, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [362], [557473],1.0.10100 PUP.Optional.SearchMulty, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [362], [557473],1.0.10100 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