Mefeedia Toolbar
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 16,191 |
| Threat Level: | 10 % (Normal) |
| Infected Computers: | 1,013 |
| First Seen: | November 13, 2013 |
| Last Seen: | January 10, 2026 |
| OS(es) Affected: | Windows |
The Mefeedia Toolbar is a low quality Web browser extension usually classified as a PUP (Potentially Unwanted Program) due to its association with potentially threatening online content. If the Mefeedia Toolbar is installed on your computer, the affected Web browser may display a variety of problems and irritating symptoms. It is important to remember that, despite its claims, the main purpose of the Mefeedia Toolbar is to generate revenue at your expense, marketing its own shady content, displaying advertising material on your Web browser and promoting questionable online content. In most cases, the Mefeedia Toolbar is installed the majority of the time because the Mefeedia Toolbar is bundled along with freeware programs downloaded from low quality sources. If the Mefeedia Toolbar is installed on your computer, security researchers strongly advise computer users to get the aid of a certified anti-malware application to remove the Mefeedia Toolbar from the affected computer.
Table of Contents
How to Deal with the Mefeedia Toolbar
It is important to understand that the Mefeedia Toolbar (and most, similar Web browser toolbars) is not designed with your best interest in mind. The Mefeedia Toolbar and similar toolbars are utilized to produce revenue at the expense of its victims. They are designed to force computer users to visit websites associated with the Mefeedia Toolbar in order to boost these websites' traffic and page ranking and to display advertisements on the victim's Web browser. The Mefeedia Toolbar also makes changes to the affected Web browser that are designed to convince inexperienced computer users to click on marketing links or carry out searches on low quality search engines that are actually designed to display sponsored 'search results' unrelated to the victim's query.
If the Mefeedia Toolbar is installed on your computer, the Mefeedia Toolbar should be uninstalled at once. Although, in most cases, the Mefeedia Toolbar may be uninstalled through normal means like using the Windows Control Panel or your Web browser's extension manager, it is very difficult to remove every single component associated with the Mefeedia Toolbar through normal uninstallation. Because of this, security researchers then recommend the use of a strong anti-malware program to scan the affected computer to ensure that not components linked to the Mefeedia Toolbar remain. Once the Mefeedia Toolbar is removed, may be necessary to undo certain changes made to your Web browser or system settings.
Analysis Report
General information
| Family Name: | PUP.Besttoolbar |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
f3eb3db2f61582c0ed7f5902bb80e4ce
SHA1:
f4e42c45befef064987e6fde083023ed2c227a0a
SHA256:
1381CC6953072CB04258EE80DC8AB414FEE4529BF07716A5363522CE11BE2B8C
File Size:
84.99 KB, 84992 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have security information
- File has exports table
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | Besttoolbars Inc. |
| File Version | 0.9.10.21 |
| Internal Name | AddonsFramework.dll |
| Legal Copyright | Besttoolbars Inc. All rights reserved. |
| Original Filename | AddonsFramework.dll |
| Product Name | Add-ons Framework |
| Product Version | 0.9.10.21 |
File Traits
- dll
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 336 |
|---|---|
| Potentially Malicious Blocks: | 0 |
| Whitelisted Blocks: | 335 |
| Unknown Blocks: | 1 |
Visual Map
? - Unknown Block
x - Potentially Malicious Block
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
Show More
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\f4e42c45befef064987e6fde083023ed2c227a0a_0000084992.,LiQMAxHB
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