Home Malware Programs Adware Adware.WebOptimizer

Adware.WebOptimizer

Posted: September 2, 2014

Threat Metric

Threat Level: 2/10
Infected PCs: 9,019
First Seen: September 2, 2014
Last Seen: October 12, 2022
OS(es) Affected: Windows

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



C:\Users\<username>\AppData\Roaming\WebOptimizer\bho.dll File name: bho.dll
Size: 140.47 KB (140472 bytes)
MD5: fdf06d7c576f8723a1ca39409c72ad37
Detection count: 4,394
File type: Dynamic link library
Mime Type: unknown/dll
Path: C:\Users\<username>\AppData\Roaming\WebOptimizer\bho.dll
Group: Malware file
Last Updated: October 2, 2021
%PROGRAMFILES(x86)%\Web Optimizer\weboptimizer64.dll File name: weboptimizer64.dll
Size: 200.7 KB (200704 bytes)
MD5: d2a9cc3d9c52a727d80e9fa62b6cc252
Detection count: 5
File type: Dynamic link library
Mime Type: unknown/dll
Path: %PROGRAMFILES(x86)%\Web Optimizer
Group: Malware file
Last Updated: September 2, 2014
setup.exe File name: setup.exe
Size: 341.31 KB (341313 bytes)
MD5: 77db8b7525a3156d33afaf0e7f5cca8c
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: February 16, 2021
%PROGRAMFILES%\Web Optimizer\weboptimizer.dll File name: weboptimizer.dll
Size: 196.09 KB (196096 bytes)
MD5: c707f6acbe59eb20bff10635f5d70a45
Detection count: 4
File type: Dynamic link library
Mime Type: unknown/dll
Path: %PROGRAMFILES%\Web Optimizer
Group: Malware file
Last Updated: May 26, 2017

More files

Registry Modifications

The following newly produced Registry Values are:

CLSID{bbb1d54d-cf70-4a80-bf2f-3bafca0225ce}File name without pathhttp_web1optimizer.net_0.localstoragehttp_web1optimizer.net_0.localstorage-journalhttps_web1optimizer.net_0.localstoragehttps_web1optimizer.net_0.localstorage-journalRegexp file mask%PROGRAMFILES%\Web Optimizer\weboptimizer.crx%PROGRAMFILES%\Web Optimizer\weboptimizer.xpi%PROGRAMFILES(x86)%\Web Optimizer\weboptimizer.crx%PROGRAMFILES(x86)%\Web Optimizer\weboptimizer.xpiHKEY..\..\..\..{RegistryKeys}SOFTWARE\Mozilla\Firefox\Extensions\{ff0f24dd-184a-42ca-9ce8-8ca6184fd0ac}SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{bbb1d54d-cf70-4a80-bf2f-3bafca0225ce}SOFTWARE\Wow6432Node\Mozilla\Firefox\Extensions\{ff0f24dd-184a-42ca-9ce8-8ca6184fd0ac}

Additional Information

The following directories were created:
%appdata%\WebOptimizer
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