BREX_ADDLYRICS.A
AdWare.Win32.AddLyrics (Ikarus), Adware:Win32/AddLyrics (Microsoft)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Adware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This adware may arrive bundled with malware packages as a malware component. It 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 may arrive bundled with malware packages as a malware component.
It 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 adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
InprocServer32
Default = "{malware path}\{filename}.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\InprocServer32
Default = "{malware path}\{filename}.dll"
It 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\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
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\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
Default = "PassShow"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
NoExplorer = "1"
Other System Modifications
This adware adds the following registry keys:
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Implemented Categories
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
InprocServer32
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Programmable
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
TypeLib
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Version
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
ProxyStubClsid
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
ProxyStubClsid32
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
TypeLib
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\0
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\0\win32
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\FLAGS
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Implemented Categories
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Implemented Categories\
{59fb2056-d625-48d0-a944-1a85b5ab2640}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Version
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
HELPDIR
It adds the following registry entries:
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
Default = "PassShow"
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Implemented Categories
Default = ""
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}
Default = ""
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
InprocServer32
ThreadingModel = "Apartment"
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
TypeLib
Default = "{04e2b965-08d5-45ff-8f70-8c4cf5fbe3c3}"
HKEY_CLASSES_ROOT\CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\
Version
Default = "1.0"
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
Default = "IInjectObject"
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
ProxyStubClsid
Default = "{00020424-0000-0000-C000-000000000046}"
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
ProxyStubClsid32
Default = "{00020424-0000-0000-C000-000000000046}"
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
TypeLib
Default = "{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}"
HKEY_CLASSES_ROOT\Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\
TypeLib
Version = "1.0"
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0
Default = "IEInjectLib"
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\0\win32
Default = "{malware path}\{filename}.dll"
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\FLAGS
Default = "0"
HKEY_CLASSES_ROOT\TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\
1.0\HELPDIR
Default = "{malware path}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}
Default = "PassShow"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Implemented Categories
Default = ""
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Implemented Categories\
{59fb2056-d625-48d0-a944-1a85b5ab2640}
Default = ""
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\TypeLib
Default = "{04e2b965-08d5-45ff-8f70-8c4cf5fbe3c3}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{0d97db6b-c9b0-4c07-98b7-818628ab37e2}\Version
Default = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
Default = "IInjectObject"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\ProxyStubClsid
Default = "{00020424-0000-0000-C000-000000000046}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\ProxyStubClsid32
Default = "{00020424-0000-0000-C000-000000000046}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\TypeLib
Default = "{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}\TypeLib
Version = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0
Default = "IEInjectLib"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
0\win32
Default = "{malware path}\{filename}.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
FLAGS
Default = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}\1.0\
HELPDIR
Default = "{malware path}"
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
Restart in Safe Mode
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_CLASSES_ROOT\CLSID
- {0d97db6b-c9b0-4c07-98b7-818628ab37e2}
- {0d97db6b-c9b0-4c07-98b7-818628ab37e2}
- In HKEY_CLASSES_ROOT\Interface
- {1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
- {1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
- In HKEY_CLASSES_ROOT\TypeLib
- {04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}
- {04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {0d97db6b-c9b0-4c07-98b7-818628ab37e2}
- {0d97db6b-c9b0-4c07-98b7-818628ab37e2}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
- {1E4D92E5-C11F-4CDC-9FEB-A5016CF8805E}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}
- {04E2B965-08D5-45FF-8F70-8C4CF5FBE3C3}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
- {0d97db6b-c9b0-4c07-98b7-818628ab37e2}
- {0d97db6b-c9b0-4c07-98b7-818628ab37e2}
Step 4
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BREX_ADDLYRICS.A. 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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