WebAdSystem

By GoldSparrow in Adware

Threat Scorecard

Ranking:	11,393
Threat Level:	20 % (Normal)
Infected Computers:	17,510

First Seen:	June 13, 2014
Last Seen:	September 14, 2023
OS(es) Affected:	Windows

WebAdSystem is a program that was created by KalityWeb. The use of WebAdSystem may allow several advertisements to be displayed on your computer. Mostly while surfing the internet, the WebAdSystem ads will appear and then redirect you to unwanted or questionable sites if clicked on. The WebAdSystem ads may also cause reduced performance for your web browser application. It is highly suggested that use of WebAdSystem be discontinued through removing the WebAdSystem application and any related plugins or add-on components. Installation of WebAdSystem may take place from bundled software or freeware obtained from various download sites on the internet.

Table of Contents

SpyHunter Detects & Remove WebAdSystem

File System Details

WebAdSystem may create the following file(s):

Expand All | Collapse All

#	File Name	MD5	Detections Detections: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
1.	WebAdSystem.exe	efd1839f21cebb26d4a815acda85e3a1	4,079
Name: WebAdSystem.exe MD5: efd1839f21cebb26d4a815acda85e3a1 Size: 822.64 KB (822640 bytes) Detections: 4,079 Type: Executable File Path: C:\Program Files (x86)\WebAdSystem\WebAdSystem.exe Group: Malware file Last Updated: May 22, 2023
2.	WebAdSystemHttpProxy.exe	9dcda6f19811952ec42fdcb79ddb48aa	2,601
Name: WebAdSystemHttpProxy.exe MD5: 9dcda6f19811952ec42fdcb79ddb48aa Size: 239.98 KB (239984 bytes) Detections: 2,601 Type: Executable File Path: C:\Program Files (x86)\WebAdSystem\WebAdSystemHttpProxy.exe Group: Malware file Last Updated: May 22, 2023
3.	WebAdSystem.exe	59d3e29329d90e14faf590b682408960	547
Name: WebAdSystem.exe MD5: 59d3e29329d90e14faf590b682408960 Size: 848.38 KB (848384 bytes) Detections: 547 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
4.	WebAdSystem.exe	e10fb094ed4dfd78a3db9f87b5b8eec3	474
Name: WebAdSystem.exe MD5: e10fb094ed4dfd78a3db9f87b5b8eec3 Size: 854.89 KB (854896 bytes) Detections: 474 Type: Executable File Path: %PROGRAMFILES(x86)%\WebAdSystem Group: Malware file Last Updated: June 29, 2020
5.	WebAdSystemHttpProxy.exe	15e036a1913fb6953a4b2554245a7f2b	381
Name: WebAdSystemHttpProxy.exe MD5: 15e036a1913fb6953a4b2554245a7f2b Size: 239.98 KB (239984 bytes) Detections: 381 Type: Executable File Path: C:\Program Files\WebAdSystem\WebAdSystemHttpProxy.exe Group: Malware file Last Updated: January 17, 2022
6.	WebAdSystem.exe	15ab42c809a5cbe11992d5c218ed928e	370
Name: WebAdSystem.exe MD5: 15ab42c809a5cbe11992d5c218ed928e Size: 860.01 KB (860016 bytes) Detections: 370 Type: Executable File Path: %PROGRAMFILES(x86)%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
7.	WebAdSystemHttpProxy.exe	e3c4ffda32cbb541becfc900487734ad	280
Name: WebAdSystemHttpProxy.exe MD5: e3c4ffda32cbb541becfc900487734ad Size: 239.98 KB (239984 bytes) Detections: 280 Type: Executable File Path: %PROGRAMFILES(x86)%\WebAdSystem Group: Malware file Last Updated: May 22, 2020
8.	WebAdSystem.exe	d41b0b6ab4f73271c5fefedb92f54569	270
Name: WebAdSystem.exe MD5: d41b0b6ab4f73271c5fefedb92f54569 Size: 848.38 KB (848384 bytes) Detections: 270 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: July 12, 2020
9.	WebAdSystem.exe	ccefcaee94775c836682991690b6acd1	139
Name: WebAdSystem.exe MD5: ccefcaee94775c836682991690b6acd1 Size: 786.94 KB (786944 bytes) Detections: 139 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
10.	WebAdSystemHttpProxy.exe	3ba150ff46a99118ee2c6273841519dd	124
Name: WebAdSystemHttpProxy.exe MD5: 3ba150ff46a99118ee2c6273841519dd Size: 233.47 KB (233472 bytes) Detections: 124 Type: Executable File Path: %PROGRAMFILES(x86)%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
11.	WebAdSystemHttpProxy.exe	24563b6fb7bd48c8361f3bc8ad4c5c09	86
Name: WebAdSystemHttpProxy.exe MD5: 24563b6fb7bd48c8361f3bc8ad4c5c09 Size: 233.47 KB (233472 bytes) Detections: 86 Type: Executable File Path: %PROGRAMFILES(x86)%\WebAdSystem Group: Malware file Last Updated: July 12, 2020
12.	WebAdSystemHttpProxy.exe	3018fc43d89ae569246fb20aa5c22782	35
Name: WebAdSystemHttpProxy.exe MD5: 3018fc43d89ae569246fb20aa5c22782 Size: 233.47 KB (233472 bytes) Detections: 35 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
13.	WebAdSystemBho.dll	af35bae1042cddf015542d0953dc8b8b	27
Name: WebAdSystemBho.dll MD5: af35bae1042cddf015542d0953dc8b8b Size: 83.31 KB (83312 bytes) Detections: 27 Type: Dynamic link library Path: C:\Program Files (x86)\WebAdSystem\BrowserExtensions\internetexplorer\WebAdSystemBho.dll Group: Malware file Last Updated: May 22, 2023
14.	WebAdSystem.exe	052018a806d498e4c23f045d1170dac4	18
Name: WebAdSystem.exe MD5: 052018a806d498e4c23f045d1170dac4 Size: 786.94 KB (786944 bytes) Detections: 18 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
15.	WebAdSystemBho.dll	088c7f933e6577d0cea14146f5c5919e	18
Name: WebAdSystemBho.dll MD5: 088c7f933e6577d0cea14146f5c5919e Size: 76.8 KB (76800 bytes) Detections: 18 Type: Dynamic link library Path: %PROGRAMFILES%\WebAdSystem\BrowserExtensions\internetexplorer Group: Malware file Last Updated: October 12, 2020
16.	WebAdSystemBho.dll	da799603dd6df0affba220ec0b232098	15
Name: WebAdSystemBho.dll MD5: da799603dd6df0affba220ec0b232098 Size: 90.11 KB (90112 bytes) Detections: 15 Type: Dynamic link library Path: %PROGRAMFILES%\WebAdSystem\BrowserExtensions\internetexplorer Group: Malware file Last Updated: June 13, 2014
17.	WebAdSystem.exe	63b367f5ff99430f48dda21b45be73bb	12
Name: WebAdSystem.exe MD5: 63b367f5ff99430f48dda21b45be73bb Size: 777.21 KB (777216 bytes) Detections: 12 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
18.	WebAdSystemBho.dll	e7f5e9dba69d7d021655fd59e70149fd	9
Name: WebAdSystemBho.dll MD5: e7f5e9dba69d7d021655fd59e70149fd Size: 90.11 KB (90112 bytes) Detections: 9 Type: Dynamic link library Path: %PROGRAMFILES%\WebAdSystem\BrowserExtensions\internetexplorer Group: Malware file Last Updated: June 13, 2014
19.	WebAdSystemHttpProxy.exe	cd33bbacd906e6901d6eb7776c337e73	5
Name: WebAdSystemHttpProxy.exe MD5: cd33bbacd906e6901d6eb7776c337e73 Size: 233.47 KB (233472 bytes) Detections: 5 Type: Executable File Path: %PROGRAMFILES(x86)%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
20.	WebAdSystem_setup.exe	50b1f007460bfe9093409fe584031de6	2
Name: WebAdSystem_setup.exe MD5: 50b1f007460bfe9093409fe584031de6 Size: 464.16 KB (464160 bytes) Detections: 2 Type: Executable File Path: C:\ProgramData\Package Cache\{e6a17a8d-41f5-4bdf-81f5-ea403ab78d82}\WebAdSystem_setup.exe Group: Malware file Last Updated: September 16, 2022
21.	WebAdSystemBho.dll	e983839f9962ef1515044bfd71da09ae	1
Name: WebAdSystemBho.dll MD5: e983839f9962ef1515044bfd71da09ae Size: 76.8 KB (76800 bytes) Detections: 1 Type: Dynamic link library Path: %PROGRAMFILES%\WebAdSystem\BrowserExtensions\internetexplorer Group: Malware file Last Updated: June 13, 2014
22.	WebAdSystem_setup.exe	9622f310991bdca92f70904b449b3e2e	1
Name: WebAdSystem_setup.exe MD5: 9622f310991bdca92f70904b449b3e2e Size: 450.07 KB (450073 bytes) Detections: 1 Type: Executable File Path: %ALLUSERSPROFILE%\Package Cache\{7b35bec8-632f-4e25-9286-2f7c00d457c3} Group: Malware file Last Updated: June 13, 2014
23.	WebAdSystemBho.dll	a5e9f17056b3847fedcd5ad4089d2d4c	1
Name: WebAdSystemBho.dll MD5: a5e9f17056b3847fedcd5ad4089d2d4c Size: 90.11 KB (90112 bytes) Detections: 1 Type: Dynamic link library Path: %PROGRAMFILES%\WebAdSystem\BrowserExtensions\internetexplorer Group: Malware file Last Updated: June 13, 2014
24.	WEBADSYSTEM_SETUP.EXE	4bbeca2f00174a6186f5a3a6a5929ed4	1
Name: WEBADSYSTEM_SETUP.EXE MD5: 4bbeca2f00174a6186f5a3a6a5929ed4 Size: 1.45 MB (1450278 bytes) Detections: 1 Type: Executable File Path: %PROGRAMFILES%\WebAdSystem Group: Malware file Last Updated: June 13, 2014
25.	WebAdSystem_setup.exe	7e6d9169e6ce0c89681bb371497dca03	1
Name: WebAdSystem_setup.exe MD5: 7e6d9169e6ce0c89681bb371497dca03 Size: 1.41 MB (1418328 bytes) Detections: 1 Type: Executable File Path: %TEMP%\nsn6AE5.tmp Group: Malware file Last Updated: June 13, 2014
26.	C:\Program Files\WebAdSystem\WebAdSystem.exe	f6d60054a6b47093bfde5d590094e1de
Name: C:\Program Files\WebAdSystem\WebAdSystem.exe MD5: f6d60054a6b47093bfde5d590094e1de Type: Executable File Group: Malware file

More files

Registry Details

WebAdSystem may create the following registry entry or registry entries:

CLSID

{4030C54B-D223-4798-B665-68767B0E843F}

{D9EDA72A-94DB-44CF-91C5-CBE30BB3F610}

{EC8FCB46-9F27-476E-B26A-93989316D2FB}

File name without path

WebAdSystem.lnk

Regexp file mask

%TEMP%\WebAdSystem_[RANDOM CHARACTERS].log

HKEY..\..\..\..{RegistryKeys}

SOFTWARE\Classes\AppID\WebAdSystemBho.DLL

SOFTWARE\Classes\AppID\{89637713-7F69-46BD-BF01-EF4F172D3DCE}

SOFTWARE\Classes\Installer\Dependencies\{AF59773E-3245-46A3-B418-DD84AB6C3C50}

SOFTWARE\Classes\Installer\Dependencies\{d8d2dd71-6eef-437b-9507-7400e210074a}

SOFTWARE\Classes\Installer\Features\E37795FA54233A644B81DD48BAC6C305

SOFTWARE\Classes\Installer\Products\E37795FA54233A644B81DD48BAC6C305

SOFTWARE\Classes\Installer\UpgradeCodes\A21967E6B9E81824BBDA78ED6535B687

SOFTWARE\Classes\WebAdSystemBho.WebAdSystemBhoObj

SOFTWARE\Classes\WebAdSystemBho.WebAdSystemBhoObj.1

SOFTWARE\Classes\Wow6432Node\AppID\WebAdSystemBho.DLL

Software\KalityWeb\WebAdSystem

Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\WebAdSystem.exe

SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EC8FCB46-9F27-476E-B26A-93989316D2FB}

Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{EC8FCB46-9F27-476E-B26A-93989316D2FB}

Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{EC8FCB46-9F27-476E-B26A-93989316D2FB}

SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WebAdSystem

SOFTWARE\Mozilla\Firefox\Extensions\firefoxextension@webadsystem.com

SOFTWARE\Wow6432Node\Classes\AppID\WebAdSystemBho.DLL

SOFTWARE\Wow6432Node\Classes\AppID\{89637713-7F69-46BD-BF01-EF4F172D3DCE}

SOFTWARE\Wow6432Node\KalityWeb\WebAdSystem

SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{EC8FCB46-9F27-476E-B26A-93989316D2FB}

SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WebAdSystem

SOFTWARE\Wow6432Node\Mozilla\Firefox\Extensions\firefoxextension@webadsystem.com

HKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..{Uninstaller}

{7C853B1C-9B65-4669-823B-DCD4B01595D5}

{84a0dbbf-77ce-4a6d-a963-abb6146a7efc}

{AF59773E-3245-46A3-B418-DD84AB6C3C50}

{d8d2dd71-6eef-437b-9507-7400e210074a}

Directories

WebAdSystem may create the following directory or directories:

%ALLUSERSPROFILE%\Package Cache\{d8d2dd71-6eef-437b-9507-7400e210074a}

%LOCALAPPDATA%\KalityWeb\WebAdSystem

%PROGRAMFILES%\WebAdSystem

%PROGRAMFILES(x86)%\WebAdSystem

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WebAdSystem

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SpyHunter Detects & Remove WebAdSystem

File System Details

Registry Details

Directories

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