ADW_BETTERSURF
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Adware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This adware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
Arrival Details
This adware 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 adware creates the following folders:
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsk5.tmp
- %Program Files%\MediaPlayerV1
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ie
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ch
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons\default
- %System%\GroupPolicy
- %System%\GroupPolicy\Machine
- %System%\GroupPolicy\User
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %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 and 7.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %System% is the Windows system folder, which is usually C:\Windows\System32.)
Autostart Technique
This adware registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{6808e709-1416-4376-9808-aec865dfdd5b}
Other System Modifications
This adware deletes the following files:
- %User Temp%\nsv3.tmp
- %User Temp%\nsk5.tmp
(Note: %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 and 7.)
It adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\
Components
HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\
Firefox\Extensions
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1\
Media Player
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Approved Extensions
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}User
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\
Google\Chrome\ExtensionInstallForcelist
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}\Version
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}\TypeLib
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\
Components
Ie = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\
Components
Ch = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\
Firefox\Extensions
ext@MediaPlayerV1alpha6918.net = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff"
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\
Components
ff = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1\
Media Player
installed = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918
Path = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
DisplayName = "Media Player"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
DisplayVersion = "1.1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
Publisher = "Media Player"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
DisplayIcon = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
UninstallString = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
NoModify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
MediaPlayerV1alpha6918
NoRepair = "1"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Approved Extensions
{6808e709-1416-4376-9808-aec865dfdd5b} = "{random values}"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\
Google\Chrome\ExtensionInstallForcelist
1 = "{random characters}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{6808e709-1416-4376-9808-aec865dfdd5b}
NoExplorer = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}\TypeLib
Version = "1.1"
It deletes the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\
Google
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Group Policy Objects\
{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\
Google\Chrome
Dropping Routine
This adware drops the following files:
- %User Temp%\nsk5.tmp\aminsis.dll
- %User Temp%\aminsis.txt
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ie\MediaPlayerV1alpha6918.dll
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ch\MediaPlayerV1alpha6918.crx
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome.manifest
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\install.rdf
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\ffMediaPlayerV1alpha6918.js
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\ffMediaPlayerV1alpha6918ffaction.js
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\overlay.xul
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons\Thumbs.db
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons\default\MediaPlayerV1alpha6918_32.png
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\uninstall.exe
- %System%\GroupPolicy\Machine\Registry.pol
(Note: %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 and 7.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %System% is the Windows system folder, which is usually C:\Windows\System32.)
This report is generated via an automated analysis system.
SOLUTION
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
Close all opened browser windows
Step 3
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_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918
- Components
- In HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox
- Extensions
- In HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1
- Media Player
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- MediaPlayerV1alpha6918
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer
- Approved Extensions
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects
- {3926D1C4-C121-4F12-8669-1B53D27F3C4F}User
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects
- {3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\Google\Chrome
- ExtensionInstallForcelist
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {6808e709-1416-4376-9808-aec865dfdd5b}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}
- Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}
- TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}
- Version
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}
- 1.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{BBB46DE5-8E4B-4691-A21B-0ABE61F8573C}\1.1
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {3C1ABA66-65EB-4135-A628-0A620468B07F}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}
- TypeLib
Step 4
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_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\Components
- Ie = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\Components
- Ch = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\Extensions
- ext@MediaPlayerV1alpha6918.net = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff"
- In HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918\Components
- ff = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1\Media Player
- installed = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\MediaPlayerV1alpha6918
- Path = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- DisplayName = "Media Player"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- DisplayVersion = "1.1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- Publisher = "Media Player"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- DisplayIcon = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- UninstallString = "%Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- NoModify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MediaPlayerV1alpha6918
- NoRepair = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Approved Extensions
- {6808e709-1416-4376-9808-aec865dfdd5b} = "{random values}"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\Google\Chrome\ExtensionInstallForcelist
- 1 = "{random characters}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6808e709-1416-4376-9808-aec865dfdd5b}
- NoExplorer = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{6808e709-1416-4376-9808-aec865dfdd5b}\InprocServer32
- ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{3C1ABA66-65EB-4135-A628-0A620468B07F}\TypeLib
- Version = "1.1"
Step 5
Search and delete these components
- %User Temp%\nsk5.tmp\aminsis.dll
- %User Temp%\aminsis.txt
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ie\MediaPlayerV1alpha6918.dll
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ch\MediaPlayerV1alpha6918.crx
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome.manifest
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\install.rdf
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\ffMediaPlayerV1alpha6918.js
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\ffMediaPlayerV1alpha6918ffaction.js
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\overlay.xul
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons\Thumbs.db
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons\default\MediaPlayerV1alpha6918_32.png
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\uninstall.exe
- %System%\GroupPolicy\Machine\Registry.pol
Step 6
Search and delete these folders
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsk5.tmp
- %Program Files%\MediaPlayerV1
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ie
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ch
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons
- %Program Files%\MediaPlayerV1\MediaPlayerV1alpha6918\ff\chrome\content\icons\default
- %System%\GroupPolicy
- %System%\GroupPolicy\Machine
- %System%\GroupPolicy\User
Step 7
Scan your computer with your Trend Micro product to delete files detected as ADW_BETTERSURF. 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 this Knowledge Base page for more information.
Step 8
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Temp%\nsv3.tmp
- %User Temp%\nsk5.tmp
Step 9
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
- Group Policy Objects
- In HKEY_CURRENT_USER\Microsoft\Windows\CurrentVersion\Group Policy Objects\{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine
- Software
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software
- Policies
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\{3926D1C4-C121-4F12-8669-1B53D27F3C4F}Machine\Software\Policies\Google
- Chrome
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