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What is Osalo APP?

The Malwarebytes research team has determined that Osalo 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.
This particular one hijacks Google and Bing searches to their own search results site.

How do I know if my computer is affected by Osalo APP?

You may see this entry in your list of installed Chrome extensions:

main.png

and this changed search results page:

warning5.png

You may have noticed these warnings during install:

warning1.png

warning2.png

warning3.png

How did Osalo APP get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was downloaded from the webstore:

webstore.png

after a redirect from their website:

website.png

How do I remove Osalo APP?

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 Osalo APP?

  • No, Malwarebytes removes Osalo APP completely.

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 Malwarebytes Browser Guard, and the full version of Malwarebytes would have protected you against the Osalo APP hijacker. It would have blocked their website, giving you a chance to stop it before it became too late.


 

protection1.png

 

protection2.png

 

Technical details for experts

Possible signs in FRST logs:


 

CHR Extension: (Osalo APP) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkdapedjjcnpmegondibnmdcofefbeog [2020-06-09]

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\jkdapedjjcnpmegondibnmdcofefbeog\3.78_0
       Adds the file bck.js"="5/28/2020 5:17 AM, 5079 bytes, A
       Adds the file manifest.json"="6/9/2020 10:41 AM, 1276 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkdapedjjcnpmegondibnmdcofefbeog\3.78_0\_metadata
       Adds the file computed_hashes.json"="6/9/2020 10:41 AM, 298 bytes, A
       Adds the file verified_contents.json"="5/29/2020 12:31 AM, 2200 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkdapedjjcnpmegondibnmdcofefbeog\3.78_0\icons\app_icons
       Adds the file app_icon128.png"="6/9/2020 10:41 AM, 12346 bytes, A
       Adds the file app_icon16.png"="6/9/2020 10:41 AM, 650 bytes, A
       Adds the file app_icon32.png"="6/9/2020 10:41 AM, 1672 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jkdapedjjcnpmegondibnmdcofefbeog\3.78_0\icons\ba_icons
       Adds the file ba_icon16.png"="6/9/2020 10:41 AM, 122 bytes, A
       Adds the file ba_icon32.png"="6/9/2020 10:41 AM, 185 bytes, A
       Adds the file ba_icon48.png"="6/9/2020 10:41 AM, 253 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog
       Adds the file 000003.log"="6/9/2020 10:41 AM, 51 bytes, A
       Adds the file CURRENT"="6/9/2020 10:41 AM, 16 bytes, A
       Adds the file LOCK"="6/9/2020 10:41 AM, 0 bytes, A
       Adds the file LOG"="6/9/2020 10:45 AM, 410 bytes, A
       Adds the file LOG.old"="6/9/2020 10:42 AM, 183 bytes, A
       Adds the file MANIFEST-000001"="6/9/2020 10:41 AM, 41 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings]
       "jkdapedjjcnpmegondibnmdcofefbeog"="REG_SZ", "226F4908C2F69C604A7DFE91FE2600C2A3F0E41BF49B0BDE63D3053C813EAE65"

Malwarebytes log:
 

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 6/9/20
Scan Time: 10:51 AM
Log File: 74041f8a-aa2e-11ea-9c65-00ffdcc6fdfc.json

-Software Information-
Version: 4.1.0.56
Components Version: 1.0.931
Update Package Version: 1.0.25254
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: 232242
Threats Detected: 12
Threats Quarantined: 12
Time Elapsed: 2 min, 47 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
Adware.SearchEngineHijack, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|jkdapedjjcnpmegondibnmdcofefbeog, Quarantined, 407, 827294, , , , 

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 2
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\JKDAPEDJJCNPMEGONDIBNMDCOFEFBEOG, Quarantined, 407, 827294, 1.0.25254, , ame, 

File: 9
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog\000003.log, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog\CURRENT, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog\LOCK, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog\LOG, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog\LOG.old, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\jkdapedjjcnpmegondibnmdcofefbeog\MANIFEST-000001, Quarantined, 407, 827294, , , , 
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\JKDAPEDJJCNPMEGONDIBNMDCOFEFBEOG\3.78_0\BCK.JS, Quarantined, 407, 827294, 1.0.25254, , 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.
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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