Analysis by: Nikko Tamana
ALIASES:

Adware.Singalng (Norton), Adware:Win32/FindLyrics (Microsoft), Adware.Singalng (Sunbelt)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 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. It arrives as a component bundled with malware/grayware packages.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size: 127,488 bytes
File Type: DLL
Memory Resident: No
Initial Samples Received Date: 22 May 2013

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.

It arrives as a component bundled with malware/grayware packages.

Autostart Technique

This adware adds the following registry keys to install itself as a Browser Helper Object (BHO):

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}

It adds the following registry entries to install itself as a Browser Helper Object (BHO):

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}
{Default} = "FindLyrics"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}
NoExplorer = "1"

Other System Modifications

This adware adds the following registry entries as part of its installation routine:

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}
{Default} = "FindLyrics"

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
InprocServer32
{Default} = "{Adware Path and File Name}"

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
TypeLib
{Default} = "{BA5B874B-C72A-4529-B2CF-D7485602D541}"

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
Version
{Default} = "1.0"

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}
{Default} = "IInjectObject"

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
ProxyStubClsid
{Default} = "{00020424-0000-0000-C000-000000000046}"

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
ProxyStubClsid32
{Default} = "{00020424-0000-0000-C000-000000000046}"

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
TypeLib
{Default} = "{BA5B874B-C72A-4529-B2CF-D7485602D541}"

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
TypeLib
Version = "1.0"

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0
{Default} = "IEInjectLib"

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\0\win32
{Default} = "{Adware Path and File Name}"

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\FLAGS
{Default} = "0"

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\HELPDIR
{Default} = "{Adware Path}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}
{Default} = "FindLyrics"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\InprocServer32
{Default} = "{Adware Path and File Name}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\TypeLib
{Default} = "{BA5B874B-C72A-4529-B2CF-D7485602D541}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\Version
{Default} = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}
{Default} = "IInjectObject"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\ProxyStubClsid
{Default} = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\ProxyStubClsid32
{Default} = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\TypeLib
{Default} = "{BA5B874B-C72A-4529-B2CF-D7485602D541}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0
{Default} = "IEInjectLib"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
0\win32
{Default} = "{Adware Path and File Name}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
FLAGS
{Default} = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
HELPDIR
{Default} = "{Adware Path}"

It adds the following registry keys as part of its installation routine:

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
InprocServer32

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
Programmable

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
TypeLib

HKEY_CLASSES_ROOT\CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\
Version

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
ProxyStubClsid

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
ProxyStubClsid32

HKEY_CLASSES_ROOT\Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\
TypeLib

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\0

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\0\win32

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\FLAGS

HKEY_CLASSES_ROOT\TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\
1.0\HELPDIR

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}\Version

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\ProxyStubClsid

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\ProxyStubClsid32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{5C927B89-5D80-4017-889F-93294895BC5F}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
0\win32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
FLAGS

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{BA5B874B-C72A-4529-B2CF-D7485602D541}\1.0\
HELPDIR

Other Details

This adware requires its main component to successfully perform its intended routine.

NOTES:
This adware may be installed by users. Once installed, it displays the lyrics to songs viewed on YouTube. It also displays advertisements in the browser window.

  SOLUTION

Minimum Scan Engine: 9.300
SSAPI PATTERN File: 1.406.37
SSAPI PATTERN Date: 22 May 2013

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

Delete this registry key

[ 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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.

  • In HKEY_CLASSES_ROOT\CLSID
    • {44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}
  • In HKEY_CLASSES_ROOT\Interface
    • {5C927B89-5D80-4017-889F-93294895BC5F}
  • In HKEY_CLASSES_ROOT\TypeLib
    • {BA5B874B-C72A-4529-B2CF-D7485602D541}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    • {44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    • {5C927B89-5D80-4017-889F-93294895BC5F}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
    • {BA5B874B-C72A-4529-B2CF-D7485602D541}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
    • {44C9CC91-6A4A-4579-B4B5-899ECDC18DC6}

Step 3

Scan your computer with your Trend Micro product to delete files detected as ADW_FINDLYR. 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.


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