PUA.Win32.MyWebSearch.GB

 Modified by: John Anthony Banes

 ALIASES:

Win32/Toolbar.MyWebSearch.BA potentially unwanted application(NOD32), Win32:UnwantedSig [PUP](AVAST)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

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 may be manually installed by a user.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

381,216 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

27 Dec 2018

Payload:

Connects to URLs/IPs, Displays graphics/image

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.

It may be manually installed by a user.

Installation

This Potentially Unwanted Application adds the following folders:

  • %AppDataLocal%\FindYourMapsTooltab
  • %User Temp%\ns{random}.tmp

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista, 7, and 8.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.)

It drops the following files:

  • %AppDataLocal%\FindYourMapsTooltab\TooltabExtension.dll
  • %User Temp%\ns{random}.tmp\cancel_blue_1473354968093.bmp
  • %User Temp%\ns{random}.tmp\FindYourMaps_msi_bg-copy_1501775064820.bmp
  • %User Temp%\ns{random}.tmp\FindYourMaps_msi_bg-copy_1501775079234.bmp
  • %User Temp%\ns{random}.tmp\Install_ENG_1435680405923.bmp
  • %User Temp%\ns{random}.tmp\installerParams
  • %User Temp%\ns{random}.tmp\nsDialogs.dll
  • %User Temp%\ns{random}.tmp\reporting
  • %User Temp%\ns{random}.tmp\secondary_accept.png
  • %User Temp%\ns{random}.tmp\secondary_bg.png
  • %User Temp%\ns{random}.tmp\secondary_decline.png
  • %User Temp%\ns{random}.tmp\System.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, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista, 7, and 8.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, and 8.)

Other System Modifications

This Potentially Unwanted Application adds the following registry keys:

HKEY_CURRENT_USER\Software\FindYourMaps

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
FindYourMapsTooltab Uninstall Internet Explorer

It adds the following registry entries:

HKEY_CURRENT_USER\Software\FindYourMaps
Start Page = http://hp.{BLOCKED}y.com/findyourmaps/ttab02/index.html?n={hex string}&p2=^BYD^mni000^TTAB02&ptb={GUID}&coid={hex string}

HKEY_CURRENT_USER\Software\FindYourMaps
UnInstallSurveyUrl = http://@{downloadDomain}.dl.{BLOCKED}y.com/uninstall.jhtml?surveyUrl=http%3A%2F%2Fwww.{BLOCKED}ch.net%2Fr%2FHYSCVNM%3Fc%3D{GUID}%26ptb%3D^BYD^mni000^TTAB02

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Start Page = http://hp.{BLOCKED}y.com/findyourmaps/ttab02/index.html?n={hex string}&p2=^BYD^mni000^TTAB02&ptb={GUID}&coid={hex string}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\TabbedBrowsing
NewTabPageShow = 1

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
FindYourMapsTooltab Uninstall Internet Explorer
DisplayName = FindYourMaps Internet Explorer Homepage and New Tab

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
FindYourMapsTooltab Uninstall Internet Explorer
HelpLink = http://support.{BLOCKED}ark.com/

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
FindYourMapsTooltab Uninstall Internet Explorer
Publisher = Mindspark Interactive Network, Inc.

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
FindYourMapsTooltab Uninstall Internet Explorer
UninstallString = Rundll32.exe "%AppDataLocal%\FindYourMapsTooltab\TooltabExtension.dll" U uninstall:FindYourMaps

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
FindYourMapsTooltab Uninstall Internet Explorer
URLInfoAbout = http://support.{BLOCKED}ark.com/

Other Details

This Potentially Unwanted Application connects to the following website to send and receive information:

  • http://anx.{BLOCKED}ark.com/anx.gif?anxa=CAPDownloadProcess&anxe=Error&errorCode=-16&errorType=nsisError&errorDetails=&platform=vicinio&anxv=2.7.1.3000&anxd=2018-05-17&coid=&refPartner=^BYD^mni000^TTAB02&refSub=&anxl=en-US&anxr=2077188745&refCobrand=BYD&refCampaign=mni000&refTrack=TTAB02&refCountry=
  • http://anx.{BLOCKED}ark.com/anx.gif?anxa=CAPDownloadProcess&anxe=Error&errorCode=-8&errorType=nsisError&errorDetails=1%2Eexe&platform=vicinio&anxv=2.7.1.3000&anxd=2018-05-17&coid={hex string}&refPartner=^BYD^mni000^TTAB02&refSub=&anxl=en-US&anxr=-2043763669&refCobrand=BYD&refCampaign=mni000&refTrack=TTAB02&refCountry=
  • http://anx.{BLOCKED}ark.com/anx.gif?anxa=CAPDownloadProcess&anxe=Error&errorCode=-13&errorType=nsisError&errorDetails=EmptyPartnerId&platform=vicinio&anxv=2.7.1.3000&anxd=2018-05-17&coid={hex string}&refPartner=^BYD^mni000^TTAB02&refSub=&anxl=en-US&anxr=2007027427&refCobrand=BYD&refCampaign=mni000&refTrack=TTAB02&refCountry=
  • http://anx.{BLOCKED}ark.com/anx.gif?anxa=CAPDownloadProcess&anxe=InstallerInvoked&platform=vicinio&anxv=2.7.1.3000&anxd=2018-05-17&coid={hex string}&refPartner=^BYD^mni000^TTAB02&refSub=&anxl=en-US&anxr=2064729513&refCobrand=BYD&refCampaign=mni000&refTrack=TTAB02&refCountry=
  • http://anx.{BLOCKED}ark.com/anx.gif?anxa=CAPDownloadProcess&anxe=InstallerFinished&tbUID={GUID}&tbVer=&platform=vicinio&anxv=2.7.1.3000&anxd=2018-05-17&coid={hex string}&refPartner=^BYD^mni000^TTAB02&refSub=&anxl=en-US&anxr=2101804607&refCobrand=BYD&refCampaign=mni000&refTrack=TTAB02&refCountry=

NOTES:

It displays the following installer window:

Checking Make FindYourMaps my homepage & new tab. modifies the Internet Explorer homepage to http://hp.{BLOCKED}y.com/findyourmaps/ttab02/index.html?n={hex string}&p2=^BYD^mni000^TTAB02&ptb={GUID}&coid={hex string}.

Uninstalling this program opens the site http://@{downloadDomain}.dl.myway.com/uninstall.jhtml?surveyUrl=http%3A%2F%2Fwww.research.net%2Fr%2FHYSCVNM%3Fc%3D{GUID}%26ptb%3D^BYD^mni000^TTAB02 in your default browser.

  SOLUTION

Minimum Scan Engine:

9.850

SSAPI PATTERN File:

2.133.00

SSAPI PATTERN Date:

03 Jan 2019

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 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

Remove PUA.Win32.MyWebSearch.GB by using its own Uninstall option

[ Learn More ]
To uninstall the grayware process

Step 4

Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.MyWebSearch.GB. 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:

Step 5

Reset the Internet Explorer Home and Search pages

[ Learn More ]


Did this description help? Tell us how we did.