PUP.Optional.WebNavigator

Short bio

PUP.Optional.WebNavigator is Malwarebytes’ detection name for a Chromium based browser that behaves like adware.

WebNavigator

WebNavigator’s about page

Symptoms

During the installation users may see this warning:

installing

After installation PUP.Optional.WebNavigator creates a Scheduled Task.

scheduled task

Users may see this entry in their list of installed programs and features:

installed

and these icons on their desktop, in their taskbar, and in their startmenu:

icons

Users may also notice a slower system as the browser keeps running in the background.

Type and source of infection

PUP.Optional.WebNavigator takes over as default browser and shows additional sponsored search results.

search results

PUP.Optional.WebNavigator can be downloaded from their werbsite.

getwebnavigator.com

getwebnavigator.com

Protection

Malwarebytes protects users from PUP.Optional.WebNavigator by using real-time protection.

block WebNavigatorBrowser

Malwarebytes blocks PUP.Optional.WebNavigator

Remediation

Malwarebytes can detect and remove PUP.Optional.WebNavigator without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click MBSetup.exe and follow the prompts to install the program.
  3. When your Malwarebytes for Windows installation completes, the program opens to the Welcome to Malwarebytes screen.
  4. Click on the Get started button.
  5. Click Scan to start a Threat Scan.
  6. Click Quarantine to remove the found threats.
  7. Reboot the system if prompted to complete the removal process.

Malwarebytes removal log

A Malwarebytes log of removal will look similar to this:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 11/2/20
Scan Time: 9:07 AM
Log File: 70176680-1ce2-11eb-9ed5-080027235d76.json

-Software Information-
Version: 4.2.2.95
Components Version: 1.0.1096
Update Package Version: 1.0.32366
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: 231938
Threats Detected: 40
Threats Quarantined: 39
Time Elapsed: 2 min, 41 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 8
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243

Module: 18
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, , , , , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, , , , , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\SWIFTSHADER\LIBEGL.DLL, Quarantined, 14613, 872640, , , , , 363642AE76FFC499F06AB9F71FDB8E80, BA5623253EDFFB0F2CA1D42414F3FBE40EA6F1A4C488A6F01E75D1D0DFCC6E34
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\SWIFTSHADER\LIBGLESV2.DLL, Quarantined, 14613, 872640, , , , , 91B8A3F751B31A76930E3156B5A95AAC, 8D3FA0DEA365BF5A3727949060AF81689FA1B345A45E95D3D1CD242C24AC52CD

Registry Key: 3
PUP.Optional.WebNavigator, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TREE\BetterCloudSolutions_S-1-5-21-1350903546-318028887-1286703239-1003\WebNavigatorBrowser-StartAtLogin, Quarantined, 14613, 872640, , , , , , 
PUP.Optional.WebNavigator, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{57186766-A331-4172-8DB4-6962BD04F800}, Quarantined, 14613, 872640, , , , , , 
PUP.Optional.WebNavigator, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\LOGON\{57186766-A331-4172-8DB4-6962BD04F800}, Quarantined, 14613, 872640, , , , , , 

Registry Value: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 1
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER, Removal Failed, 14613, 872640, 1.0.32366, , ame, , , 

File: 10
PUP.Optional.WebNavigator, C:\WINDOWS\SYSTEM32\TASKS\BetterCloudSolutions_S-1-5-21-1350903546-318028887-1286703239-1003\WebNavigatorBrowser-StartAtLogin, Quarantined, 14613, 872640, , , , , 31FC9DC8CB0D269BDC4893792DFBC476, C55E26BFAFC3818B299E9DCC9AC70B2857A62DF664ED2E9241172F277B33EE43
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\ROAMING\MICROSOFT\INTERNET EXPLORER\QUICK LAUNCH\User Pinned\TaskBar\WebNavigatorBrowser.lnk, Quarantined, 14613, 872640, , , , , F0BE40CF5846EC71FD0E1097CE0AA622, 9D15D0D9122E65A2768F38B0819C6CDC79CEDAC89A5249789CD026940970CD19
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\ROAMING\Microsoft\Internet Explorer\Quick Launch\WebNavigatorBrowser.lnk, Quarantined, 14613, 872640, , , , , D0ABE90A3A0BDA179978C98C6FBE8F7D, E84D95673C58A82451CC48F33AF7E9107F480048F4F552E8958F4E67F15CF95E
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\ROAMING\Microsoft\Windows\Start Menu\Programs\WebNavigatorBrowser.lnk, Quarantined, 14613, 872640, , , , , 508A2C9F0DE9FEFCA4F384A4066EE8B0, F0A564E1EF58241A029251D5156A694AE88CC71D00ACAF254505B9DE92567FD1
PUP.Optional.WebNavigator, C:\USERS\{username}\Desktop\WebNavigatorBrowser.lnk, Quarantined, 14613, 872640, , , , , 0BC031D89D7E7C973607C94DFFCEBF37, 7CA65EF20AFA83153C0ED83292BAC6A32A5A7464291B7FEE757B6BBD7AA557C9
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\WEBNAVIGATORBROWSER.EXE, Quarantined, 14613, 872640, 1.0.32366, , ame, , F2C1AA209E185ED50BF9AE8161914954, 5524FEE1BB95B3778857B414586611584794867C5FCE1952D22DCBA93C5CD243
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\WEBNAVIGATORBROWSER_ELF.DLL, Quarantined, 14613, 872640, 1.0.32366, , ame, , 66F595ED3CF775986749FD46B0FD4AB9, 7E1D4A5FE47B73D91569C77488FB829B46743A0F7373E721D30EA90BAF41C943
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\SWIFTSHADER\LIBEGL.DLL, Quarantined, 14613, 872640, 1.0.32366, , ame, , 363642AE76FFC499F06AB9F71FDB8E80, BA5623253EDFFB0F2CA1D42414F3FBE40EA6F1A4C488A6F01E75D1D0DFCC6E34
PUP.Optional.WebNavigator, C:\USERS\{username}\APPDATA\LOCAL\WEBNAVIGATORBROWSER\APPLICATION\2.3.0.3\SWIFTSHADER\LIBGLESV2.DLL, Quarantined, 14613, 872640, 1.0.32366, , ame, , 91B8A3F751B31A76930E3156B5A95AAC, 8D3FA0DEA365BF5A3727949060AF81689FA1B345A45E95D3D1CD242C24AC52CD
PUP.Optional.WebNavigator, C:\USERS\{username}\DESKTOP\CLICK HERE TO START THE WEBNAVIGATOR BROWSER INSTALLER_3Q87GO1E_.EXE, Quarantined, 14613, 872911, 1.0.32366, , ame, , 3B79B75F94D18FE641E90B385EBFCBB7, ECF11100CAC3B9044A3934F6E1028B6A80C00B6DD521102F8980F40A9332E122

Physical Sector: 0
(No malicious items detected)

WMI: 0
(No malicious items detected)


(end)

Add an exclusion

Should users wish to keep this program and exclude it from being detected in future scans, they can add the program to the exclusions list. Here’s how to do it.

  • Open Malwarebytes for Windows.
  • Click the Detection History
  • Click the Allow List
  • To add an item to the Allow List, click Add.
  • Select the exclusion type Allow a file or folder and use the Select a folder button to select the main folder for the software that you wish to keep.
  • Repeat this for any secondary files or folder(s) that belong to the software.

If you want to allow the program to connect to the Internet, for example to fetch updates, also add an exclusion of the type Allow an application to connect to the internet and use the Browse button to select the file you wish to grant access.

Traces/IOCs

You may see these entries in FRST logs:

Default browser: "C:\Users\{username}\AppData\Local\WebNavigatorBrowser\Application\webnavigatorbrowser.exe" "--strtl=roc" -- "%1"
(Better Cloud Solutions LTD -> Better Cloud Solutions) C:\Users\{username}\AppData\Local\WebNavigatorBrowser\Application\webnavigatorbrowser.exe <8>
Task: {57186766-A331-4172-8DB4-6962BD04F800} - System32\Tasks\BetterCloudSolutions_S-1-5-21-1350903546-318028887-1286703239-1003\WebNavigatorBrowser-StartAtLogin => C:\Users\{username}\AppData\Local\WebNavigatorBrowser\Application\webnavigatorbrowser.exe [2051480 2020-09-29] (Better Cloud Solutions LTD -> Better Cloud Solutions)
C:\Windows\system32\Tasks\BetterCloudSolutions_S-1-5-21-1350903546-318028887-1286703239-1003
C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\WebNavigatorBrowser.lnk
C:\Users\{username}\Desktop\WebNavigatorBrowser.lnk
C:\Users\{username}\AppData\Local\WebNavigatorBrowser
(Better Cloud Solutions Ltd) C:\Users\{username}\Desktop\Click HERE to start the WebNavigator Browser Installer_3q87go1e_.exe

WebNavigatorBrowser (HKCU\...\WebNavigatorBrowser) (Version: 2.3.0.3 - Better Cloud Solutions Ltd)
() [File not signed] C:\Users\{username}\AppData\Local\WebNavigatorBrowser\Application\2.3.0.3\swiftshader\libegl.dll
() [File not signed] C:\Users\{username}\AppData\Local\WebNavigatorBrowser\Application\2.3.0.3\swiftshader\libglesv2.dll
FirewallRules: [{C5544D3B-F523-4253-8DB7-49B71B17495F}] => (Allow) C:\Users\{username}\AppData\Local\WebNavigatorBrowser\Application\webnavigatorbrowser.exe (Better Cloud Solutions LTD -> Better Cloud Solutions)

Associated threats

Domains:

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