PUA.Win32.MyWebSearch.MANGCABQ
Win32/Toolbar.MyWebSearch.BA potentially unwanted application (NOD32); HEUR:WebToolbar.Win32.Agent.gen (Kaspersky)
Windows
Threat Type: Potentially Unwanted Application
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It modifies the user's Internet Explorer home page into a certain website. This action allows the malware to point to a website which may contain malware, putting the affected computer at greater risk of malware infection.
It connects to certain websites to send and receive information.
TECHNICAL DETAILS
379,464 bytes
EXE
No
11 Nov 2020
Connects to URLs/IPs, Displays windows
Arrival Details
This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Potentially Unwanted Application adds the following folders:
- %AppDataLocal%\MyTransitGuideTooltab
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It drops the following files:
- %AppDataLocal%\MyTransitGuideTooltab\TooltabExtension.dll
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Potentially Unwanted Application adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Start Page = http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
HKEY_CURRENT_USER\Software\MyTransitGuide
Start Page = http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\TabbedBrowsing
NewTabPageShow = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
MyTransitGuideTooltab Uninstall Internet Explorer
DisplayName = MyTransitGuide Internet Explorer Homepage and New Tab
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
MyTransitGuideTooltab Uninstall Internet Explorer
UninstallString = Rundll32.exe "%AppDataLocal%\MyTransitGuideTooltab\TooltabExtension.dll" U uninstall:MyTransitGuide
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
MyTransitGuideTooltab Uninstall Internet Explorer
Publisher = Mindspark Interactive Network, Inc.
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
MyTransitGuideTooltab Uninstall Internet Explorer
HelpLink = http://support.{BLOCKED}ark.com/
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
MyTransitGuideTooltab Uninstall Internet Explorer
URLInfoAbout = http://support.{BLOCKED}ark.com/
Web Browser Home Page and Search Page Modification
This Potentially Unwanted Application modifies the user's Internet Explorer home page to the following websites:
- http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
Other Details
This Potentially Unwanted Application adds the following registry keys:
HKEY_CURRENT_USER\Software\MyTransitGuide
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
MyTransitGuideTooltab Uninstall Internet Explorer
It connects to the following website to send and receive information:
- http://anx.mi{BLOCKED}rk.com/anx.gif?anxa=CAPDownloadProcess&anxe=Error&errorCode=-16&errorType=nsisError&errorDetails=&platform=vicinio&anxv=2.0.1.8&anxd=2016-04-21&coid=&refPartner=^BNH^mni000^TTAB02&refSub=&anxl=en-US&anxr=-2090203950&refCobrand=BNH&refCampaign=mni000&refTrack=TTAB02&refCountry=
- http://free.my{BLOCKED}ide.com/successRedirect.jhtml?source=msni&successUrl=http%3A%2F%2Fhp%2Emyway%2Ecom%2Fmytransitguide%2Fttab02%2Findex%2Ehtml%3Fn%3D78860F83%26p2%3D%5EBNH%5Emni000%5ETTAB02%26ptb%3D4394D5B6-2236-4246-89B1-293AD9705EE7&pixelUrl=&coId=ebf2b13ee02c4979939715bf28d1a082
It does the following:
- Redirects to the following when browser does not support the installed software:
- http://hp.m{BLOCKED}ay.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
- It displays the following upon execution:
SOLUTION
9.800
2.513.00
06 May 2022
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- Start Page = http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
- Start Page = http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
- In HKEY_CURRENT_USER\Software\MyTransitGuide
- Start Page = http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
- Start Page = http://hp.m{BLOCKED}y.com/mytransitguide/ttab02/index.html?n=78860F83&p2=^BNH^mni000^TTAB02&ptb={GUID}
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
- NewTabPageShow = 1
- NewTabPageShow = 1
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\MyTransitGuideTooltab Uninstall Internet Explorer
- DisplayName = MyTransitGuide Internet Explorer Homepage and New Tab
- DisplayName = MyTransitGuide Internet Explorer Homepage and New Tab
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\MyTransitGuideTooltab Uninstall Internet Explorer
- UninstallString = Rundll32.exe "%AppDataLocal%\MyTransitGuideTooltab\TooltabExtension.dll" U uninstall:MyTransitGuide
- UninstallString = Rundll32.exe "%AppDataLocal%\MyTransitGuideTooltab\TooltabExtension.dll" U uninstall:MyTransitGuide
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\MyTransitGuideTooltab Uninstall Internet Explorer
- Publisher = Mindspark Interactive Network, Inc.
- Publisher = Mindspark Interactive Network, Inc.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\MyTransitGuideTooltab Uninstall Internet Explorer
- HelpLink = http://support.{BLOCKED}ark.com/
- HelpLink = http://support.{BLOCKED}ark.com/
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\MyTransitGuideTooltab Uninstall Internet Explorer
- URLInfoAbout = http://support.{BLOCKED}ark.com/
- URLInfoAbout = http://support.{BLOCKED}ark.com/
Step 4
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\MyTransitGuide
- "" = ""
- "" = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\MyTransitGuideTooltab Uninstall Internet Explorer
- "" = ""
- "" = ""
Step 5
Search and delete this file
- %AppDataLocal%\MyTransitGuide\TooltabExtension.dll
Step 6
Search and delete this folder
- %AppDataLocal%\MyTransitGuide
Step 7
Reset the Internet Explorer Home and Search pages
Step 8
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.MyWebSearch.MANGCABQ. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
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