What is Windows Net Proxy Auto Service?
The Malwarebytes research team has determined that Windows Net Proxy Auto Service is a potentially unwanted program behaving like adware. These adware applications display advertisements not originating from the sites you are browsing.
How do I know if my computer is affected by Windows Net Proxy Auto Service?
You may see this new service listed:
with these properties:
How did Windows Net Proxy Auto Service get on my computer?
Adware applications use different methods for distributing themselves. This particular one was installed by a bundler.
How do I remove Windows Net Proxy Auto Service?
Our program Malwarebytes can detect and remove this potentially unwanted program.
- Please download Malwarebytes to your desktop.
- Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
- Then click Finish.
- Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
- If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
- When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
- Restart your computer when prompted to do so.
- No, Malwarebytes removes Windows Net Proxy Auto Service completely.
We hope our application and this guide have helped you eradicate this adware.
As you can see below the full version of Malwarebytes would have protected you against the Windows Net Proxy Auto Service adware. It would have blocked the installer before it became too late.
and it would have blocked the download of the silent installer:
Technical details for experts
Possible signs in FRST logs:
S2 WinNetSvc; "C:\Users\{username}\AppData\Roaming\WinNetSvc\WinNetSvc.exe" [X] C:\Users\{username}\AppData\Roaming\WinNetSvcSignificant changes made by the installer:
File system details [View: All details] (Selection) --------------------------------------------------- Adds the folder C:\Users\{username}\AppData\Roaming\WinNetSvc Adds the file config.ini"="5/29/2018 8:31 AM, 20 bytes, A Adds the file Interface.dll"="11/28/2015 10:45 AM, 83456 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WinNetSvc] "Description"="REG_SZ", "Windows Net Service" "Display"="REG_SZ", "Windows Net Proxy Auto Service" "DisplayName"="REG_SZ", "Windows Net Proxy Auto Service" "ErrorControl"="REG_DWORD", 0 "ImagePath"="REG_EXPAND_SZ, ""C:\Users\{username}\AppData\Roaming\WinNetSvc\WinNetSvc.exe"" "ObjectName"="REG_SZ", "LocalSystem" "Start"="REG_DWORD", 2 "Type"="REG_DWORD", 272 "WOW64"="REG_DWORD", 1Malwarebytes log:
Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 5/29/18 Scan Time: 8:45 AM Log File: ea972a15-630b-11e8-b7bb-080027235d76.json Administrator: Yes -Software Information- Version: 3.3.1.2183 Components Version: 1.0.262 Update Package Version: 1.0.5286 License: Premium -System Information- OS: Windows 7 Service Pack 1 CPU: x64 File System: NTFS User: {computername}\{username} -Scan Summary- Scan Type: Threat Scan Result: Completed Objects Scanned: 240509 Threats Detected: 4 Threats Quarantined: 4 Time Elapsed: 2 min, 48 sec -Scan Options- Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Enabled Heuristics: Enabled PUP: Detect PUM: Detect -Scan Details- Process: 0 (No malicious items detected) Module: 0 (No malicious items detected) Registry Key: 1 PUP.Optional.WinNetSvc, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\WINNETSVC, Quarantined, [717], [185516],1.0.5286 Registry Value: 1 PUP.Optional.WinNetSvc, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\WINNETSVC|IMAGEPATH, Quarantined, [717], [185516],1.0.5286 Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 0 (No malicious items detected) File: 2 PUP.Optional.WinNetSvc, C:\USERS\{username}\DESKTOP\WNSINS.EXE, Quarantined, [717], [104935],1.0.5286 PUP.Optional.WinNetSvc, C:\DOWNLOADS\WNSINS.EXE, Quarantined, [717], [104935],1.0.5286 Physical Sector: 0 (No malicious items detected) (end)As mentioned before the full version of Malwarebytes could have protected your computer against this threat.
We use different ways of protecting your computer(s):
- Dynamically Blocks Malware Sites & Servers
- Malware Execution Prevention