ADW_BROWSEBURST
Windows
Threat Type: Adware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Dropped by other malware, Downloaded from the Internet
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 acts as a Browser Helper Object (BHO) that monitors a user's Internet-browsing habits.
TECHNICAL DETAILS
249,624 bytes
DLL
No
19 Aug 2014
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 acts as a Browser Helper Object (BHO) that monitors a user's Internet-browsing habits.
Other System Modifications
This adware adds the following registry keys:
HKEY_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
HKEY_CLASSES_ROOT\Interface\{AC8BD9BC-FD95-4546-B4A2-40B96306B323}
HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{AC8BD9BC-FD95-4546-B4A2-40B96306B323}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
It adds the following registry entries:
HKEY_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
@ = "Adanak"
HKEY_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\
InprocServer32
ThreadingModel = "Apartment"
HKEY_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\
InprocServer32
@ = "{malware path and file name}"
HKEY_CLASSES_ROOT\Interface\{AC8BD9BC-FD95-4546-B4A2-40B96306B323}
@ = "IAdanakBHO"
HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\
1.0
@ = "AdanakIEClientLib"
HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\
1.0\0\win32
@ = {malware path and file name}
HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\
1.0\HELPDIR
@ = "{malware path}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
@ = "Adanak"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\InprocServer32
@ = {malware path and file name}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{AC8BD9BC-FD95-4546-B4A2-40B96306B323}
@ = "IAdanakBHO"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0
@ = "AdanakIEClientLib"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0\
0\win32
@ = "{malware path and file name} "
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0\
HELPDIR
@ = "{malware path}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
@ = "Adanak"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
NoExplorer = "dword:00000001"
NOTES:
This adware disguises as fake browser plugins. Once installed, it is able to produce browser pop-ups and ads into websites.
SOLUTION
9.700
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
Restart in Safe Mode
Step 4
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
- {ef05f09c-9b2a-43a0-8155-fab1d641215a}
- {ef05f09c-9b2a-43a0-8155-fab1d641215a}
- In HKEY_CLASSES_ROOT\Interface
- {AC8BD9BC-FD95-4546-B4A2-40B96306B323}
- {AC8BD9BC-FD95-4546-B4A2-40B96306B323}
- In HKEY_CLASSES_ROOT\TypeLib
- {8F79BA4B-6A53-4B70-8338-393C30D195F6}
- {8F79BA4B-6A53-4B70-8338-393C30D195F6}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {ef05f09c-9b2a-43a0-8155-fab1d641215a}
- {ef05f09c-9b2a-43a0-8155-fab1d641215a}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {AC8BD9BC-FD95-4546-B4A2-40B96306B323}
- {AC8BD9BC-FD95-4546-B4A2-40B96306B323}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {8F79BA4B-6A53-4B70-8338-393C30D195F6}
- {8F79BA4B-6A53-4B70-8338-393C30D195F6}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
- {ef05f09c-9b2a-43a0-8155-fab1d641215a}
- {ef05f09c-9b2a-43a0-8155-fab1d641215a}
Step 5
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_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
- @ = "Adanak"
- @ = "Adanak"
- In HKEY_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\InprocServer32
- @ = "{malware path and file name}"
- @ = "{malware path and file name}"
- In HKEY_CLASSES_ROOT\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\InprocServer32
- ThreadingModel = "Apartment"
- ThreadingModel = "Apartment"
- In HKEY_CLASSES_ROOT\Interface\{AC8BD9BC-FD95-4546-B4A2-40B96306B323}
- @ = "IAdanakBHO"
- @ = "IAdanakBHO"
- In HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0
- @ = "AdanakIEClientLib"
- @ = "AdanakIEClientLib"
- In HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0\0\win32
- @ = "{malware path and file name}"
- @ = "{malware path and file name}"
- In HKEY_CLASSES_ROOT\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0\HELPDIR
- @ = "{malware path}"
- @ = "{malware path}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
- @ = "Adanak"
- @ = "Adanak"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\InprocServer32
- @ = "{malware path and file name}"
- @ = "{malware path and file name}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{ef05f09c-9b2a-43a0-8155-fab1d641215a}\InprocServer32
- ThreadingModel = "Apartment"
- ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{AC8BD9BC-FD95-4546-B4A2-40B96306B323}
- @ = "IAdanakBHO"
- @ = "IAdanakBHO"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0
- @ = "AdanakIEClientLib"
- @ = "AdanakIEClientLib"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0\0\win32
- @ = "{malware path and file name}"
- @ = "{malware path and file name}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{8F79BA4B-6A53-4B70-8338-393C30D195F6}\1.0\HELPDIR
- @ = "{malware path}"
- @ = "{malware path}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
- @ = "Adanak"
- @ = "Adanak"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{ef05f09c-9b2a-43a0-8155-fab1d641215a}
- NoExplorer = "dword:00000001"
- NoExplorer = "dword:00000001"
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as ADW_BROWSEBURST. 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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