Adware.Win32.MUSIN.AA

April 11, 2020

PLATFORM:

Windows

OVERALL RISK RATING:

REPORTED INFECTION:

SYSTEM IMPACT RATING:

INFORMATION EXPOSURE:

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

File Size: 1,041,824 bytes

File Type: DLL

Memory Resident: Yes

Initial Samples Received Date: 11 Apr 2020

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.

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\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}

Other System Modifications

This Adware adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}
(Default) = "IJSServer"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}\
ProxyStubClsid32
(Default) = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}\
TypeLib
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}\
TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}
(Default) = "IJSServer2"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}\
ProxyStubClsid32
(Default) = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}\
TypeLib
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}\
TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
InprocServer32
(Default) = "%User Temp%\{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.JSServer2
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.JSServer2\Clsid
(Default) = "{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
ProgID
(Default) = "Inbox.JSServer2"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
Version
(Default) = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
TypeLib
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}
(Default) = "Inbox Toolbar"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
Implemented Categories
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\
Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
InprocServer32
(Default) = "%User Temp%\{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.JSServer
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.JSServer\Clsid
(Default) = "{042DA63B-0933-403D-9395-B49307691690}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
ProgID
(Default) = "Inbox.JSServer"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
Version
(Default) = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
TypeLib
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}
(Default) = "Inbox Toolbar"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
Implemented Categories
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\
Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\
InprocServer32
(Default) = "%User Temp%\{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\
Implemented Categories
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\
Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
(Default) = "Inbox Toolbar"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
explorer\Browser Helper Objects\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
explorer\Browser Helper Objects\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
NoExplorer = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Internet Explorer\MAIN
IEWatsonEnabled = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\
InprocServer32
(Default) = "%User Temp%\{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.Toolbar
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.Toolbar\Clsid
(Default) = "{D7E97865-918F-41E4-9CD0-25AB1C574CE8}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\
ProgID
(Default) = "Inbox.Toolbar"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\
Implemented Categories
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\
Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Internet Explorer\Low Rights\
ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
AppName = "{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Internet Explorer\Low Rights\
ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
AppPath = "%User Temp%"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Internet Explorer\Low Rights\
ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
Policy = "3"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
AppName = "{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
AppPath = "%User Temp%"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
Policy = "3"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
(Default) = "&Inbox Toolbar"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Internet Explorer\Toolbar
{D7E97865-918F-41E4-9CD0-25AB1C574CE8} = "\x00"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Inbox Toolbar
EPM32Dll = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}\
InprocServer32
(Default) = "%User Temp%\{malware file name}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.IBX404
(Default) = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Inbox.IBX404\Clsid
(Default) = "{37540F19-DD4C-478B-B2DF-C19281BCAF27}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}\
ProgID
(Default) = "Inbox.IBX404"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Handler\inbox
(Default) = "inbox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Handler\inbox
CLSID = "{37540F19-DD4C-478B-B2DF-C19281BCAF27}"

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine: 9.850

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

Close all opened browser windows

Step 3

Delete this registry value

[ Learn More ]

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\Classes\Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}
- (Default) = "IJSServer"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}\ProxyStubClsid32
- (Default) = "{00020424-0000-0000-C000-000000000046}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}\TypeLib
- (Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}\TypeLib
- Version = "1.0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}
- (Default) = "IJSServer2"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}\ProxyStubClsid32
- (Default) = "{00020424-0000-0000-C000-000000000046}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}\TypeLib
- (Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0E56FAFA-1B09-480E-B653-4B23918DC58A}\TypeLib
- Version = "1.0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\InprocServer32
- (Default) = "%User Temp%\{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\InprocServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.JSServer2
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.JSServer2\Clsid
- (Default) = "{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\ProgID
- (Default) = "Inbox.JSServer2"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\Version
- (Default) = "1.0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\TypeLib
- (Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}
- (Default) = "Inbox Toolbar"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\Implemented Categories
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\InprocServer32
- (Default) = "%User Temp%\{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\InprocServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.JSServer
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.JSServer\Clsid
- (Default) = "{042DA63B-0933-403D-9395-B49307691690}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\ProgID
- (Default) = "Inbox.JSServer"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\Version
- (Default) = "1.0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\TypeLib
- (Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}
- (Default) = "Inbox Toolbar"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\Implemented Categories
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{042DA63B-0933-403D-9395-B49307691690}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\InprocServer32
- (Default) = "%User Temp%\{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\InprocServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\Implemented Categories
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
- (Default) = "Inbox Toolbar"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
- NoExplorer = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN
- IEWatsonEnabled = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\InprocServer32
- (Default) = "%User Temp%\{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.Toolbar
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.Toolbar\Clsid
- (Default) = "{D7E97865-918F-41E4-9CD0-25AB1C574CE8}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\ProgID
- (Default) = "Inbox.Toolbar"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\Implemented Categories
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- AppName = "{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- AppPath = "%User Temp%"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- Policy = "3"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- AppName = "{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- AppPath = "%User Temp%"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- Policy = "3"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
- (Default) = "&Inbox Toolbar"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D7E97865-918F-41E4-9CD0-25AB1C574CE8}\InprocServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar
- {D7E97865-918F-41E4-9CD0-25AB1C574CE8} = "\x00"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Inbox Toolbar
- EPM32Dll = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}\InprocServer32
- (Default) = "%User Temp%\{malware file name}.dll"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}\InprocServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.IBX404
- (Default) = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Inbox.IBX404\Clsid
- (Default) = "{37540F19-DD4C-478B-B2DF-C19281BCAF27}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{37540F19-DD4C-478B-B2DF-C19281BCAF27}\ProgID
- (Default) = "Inbox.IBX404"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler\inbox
- (Default) = "inbox"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler\inbox
- CLSID = "{37540F19-DD4C-478B-B2DF-C19281BCAF27}"

To delete the registry value this malware/grayware created:

Open Registry Editor.
» For Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2) users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>Interface>{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}
In the right panel, locate and delete the entry:
(Default) = "IJSServer"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>Interface>{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}>ProxyStubClsid32
In the right panel, locate and delete the entry:
(Default) = "{00020424-0000-0000-C000-000000000046}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>Interface>{CE057E0D-2D7E-4DFF-A890-07BA69B8C762}>TypeLib
In the right panel, locate and delete the entry:
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"
Again In the right panel, locate and delete the entry:
Version = "1.0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>Interface>{0E56FAFA-1B09-480E-B653-4B23918DC58A}
In the right panel, locate and delete the entry:
(Default) = "IJSServer2"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>Interface>{0E56FAFA-1B09-480E-B653-4B23918DC58A}>ProxyStubClsid32
In the right panel, locate and delete the entry:
(Default) = "{00020424-0000-0000-C000-000000000046}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>Interface>{0E56FAFA-1B09-480E-B653-4B23918DC58A}>TypeLib
In the right panel, locate and delete the entry:
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"
Again In the right panel, locate and delete the entry:
Version = "1.0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>InprocServer32
In the right panel, locate and delete the entry:
(Default) = "%User Temp%\{malware file name}.dll"
Again In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.JSServer2
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.JSServer2>Clsid
In the right panel, locate and delete the entry:
(Default) = "{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>ProgID
In the right panel, locate and delete the entry:
(Default) = "Inbox.JSServer2"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>Version
In the right panel, locate and delete the entry:
(Default) = "1.0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>TypeLib
In the right panel, locate and delete the entry:
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"
Again In the right panel, locate and delete the entry:
(Default) = "Inbox Toolbar"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>Implemented Categories
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>Implemented Categories>{7DD95801-9882-11CF-9FA9-00AA006C42C4}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>Implemented Categories>{7DD95802-9882-11CF-9FA9-00AA006C42C4}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{C7C55C60-F5B5-40A3-A2E9-EC00E1FE08F3}>Implemented Categories>{59FB2056-D625-48D0-A944-1A85B5AB2640}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>InprocServer32
In the right panel, locate and delete the entry:
(Default) = "%User Temp%\{malware file name}.dll"
Again In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.JSServer
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.JSServer>Clsid
In the right panel, locate and delete the entry:
(Default) = "{042DA63B-0933-403D-9395-B49307691690}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>ProgID
In the right panel, locate and delete the entry:
(Default) = "Inbox.JSServer"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>Version
In the right panel, locate and delete the entry:
(Default) = "1.0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>TypeLib
In the right panel, locate and delete the entry:
(Default) = "{CBEF8724-D080-4737-88DA-111EEC6651AA}"
Again In the right panel, locate and delete the entry:
(Default) = "Inbox Toolbar"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>Implemented Categories
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>Implemented Categories>{7DD95801-9882-11CF-9FA9-00AA006C42C4}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>Implemented Categories>{7DD95802-9882-11CF-9FA9-00AA006C42C4}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{042DA63B-0933-403D-9395-B49307691690}>Implemented Categories>{59FB2056-D625-48D0-A944-1A85B5AB2640}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D3D233D5-9F6D-436C-B6C7-E63F77503B30}>InprocServer32
In the right panel, locate and delete the entry:
(Default) = "%User Temp%\{malware file name}.dll"
Again In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D3D233D5-9F6D-436C-B6C7-E63F77503B30}>Implemented Categories
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D3D233D5-9F6D-436C-B6C7-E63F77503B30}>Implemented Categories>{59FB2056-D625-48D0-A944-1A85B5AB2640}
In the right panel, locate and delete the entry:
(Default) = ""
Again In the right panel, locate and delete the entry:
(Default) = "Inbox Toolbar"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows>CurrentVersion>explorer>Browser Helper Objects>{D3D233D5-9F6D-436C-B6C7-E63F77503B30}
In the right panel, locate and delete the entry:
(Default) = ""
Again In the right panel, locate and delete the entry:
NoExplorer = "1"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Internet Explorer>MAIN
In the right panel, locate and delete the entry:
IEWatsonEnabled = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}>InprocServer32
In the right panel, locate and delete the entry:
(Default) = "%User Temp%\{malware file name}.dll"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.Toolbar
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.Toolbar>Clsid
In the right panel, locate and delete the entry:
(Default) = "{D7E97865-918F-41E4-9CD0-25AB1C574CE8}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}>ProgID
In the right panel, locate and delete the entry:
(Default) = "Inbox.Toolbar"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}>Implemented Categories
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}>Implemented Categories>{59FB2056-D625-48D0-A944-1A85B5AB2640}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Internet Explorer>Low Rights>ElevationPolicy>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
In the right panel, locate and delete the entry:
AppName = "{malware file name}.dll"
Again In the right panel, locate and delete the entry:
AppPath = "%User Temp%"
Again In the right panel, locate and delete the entry:
Policy = "3"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Internet Explorer>Low Rights>ElevationPolicy>{D7E97865-918F-41E4-9CD0-25AB1C574CE8}
In the right panel, locate and delete the entry:
AppName = "{malware file name}.dll"
Again In the right panel, locate and delete the entry:
AppPath = "%User Temp%"
Again In the right panel, locate and delete the entry:
Policy = "3"
Again In the right panel, locate and delete the entry:
(Default) = "&Inbox Toolbar"
Again In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Internet Explorer>Toolbar
In the right panel, locate and delete the entry:
{D7E97865-918F-41E4-9CD0-25AB1C574CE8} = "\x00"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Inbox Toolbar
In the right panel, locate and delete the entry:
EPM32Dll = "1"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{37540F19-DD4C-478B-B2DF-C19281BCAF27}
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{37540F19-DD4C-478B-B2DF-C19281BCAF27}>InprocServer32
In the right panel, locate and delete the entry:
(Default) = "%User Temp%\{malware file name}.dll"
Again In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.IBX404
In the right panel, locate and delete the entry:
(Default) = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Inbox.IBX404>Clsid
In the right panel, locate and delete the entry:
(Default) = "{37540F19-DD4C-478B-B2DF-C19281BCAF27}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>Wow6432Node>CLSID>{37540F19-DD4C-478B-B2DF-C19281BCAF27}>ProgID
In the right panel, locate and delete the entry:
(Default) = "Inbox.IBX404"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>PROTOCOLS>Handler>inbox
In the right panel, locate and delete the entry:
(Default) = "inbox"
Again In the right panel, locate and delete the entry:
CLSID = "{37540F19-DD4C-478B-B2DF-C19281BCAF27}"
Close Registry Editor.

Step 4

Scan your computer with your Trend Micro product to delete files detected as Adware.Win32.MUSIN.AA. 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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Adware.Win32.MUSIN.AA

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