MBUser2

I am running UBlock Origin and I do monthly backups with Macrium Reflect. I understand what you are saying about Defender, but I am not sure how to actually use it. It appears to have a steep "learning curve" from my present point of view.

I found this "How to Geek" article. I'm sure Malwarebytes has something similar, but this is the first thing I found. It sounds very complex and difficult to use. https://www.howtogeek.com/230158/how-to-run-malwarebytes-alongside-another-antivirus/

Since I'm trying to help someone else clean up a web site, I don't see how changing my AV settings is going to help the other users at all. The goal is a web site which does not "throw errors" when BrowserGuard sees it.

Now I'm really confused. What do I gain if I do that?

I probably don't know what is meant by "scan" for threats. I know this sounds pretty lame, but I seem to be missing something on a fundamental level. How would you describe what BrowserGuard is doing when I browse to https://www.olyham.org? How was the CDN determined so it could be blocked? Back to the "central" question, what does the olyham.org developer need to do to get BrowserGuard to stop warning about using his site? From looking at the "view source" tool in Firefox, I can see several references to the same CDN named in the example PDF, but they are referencing JPG files, not PDF's. I didn't see any references to PDF's, but that doesn't mean Site123 wasn't using them. We need to be able to explain this to Site123 so they can clean up their act.

Paid version, Premium. Using Firefox for browser.

I'm not following the statement "PDF from your link in your other post". I was describing a BrowserGuard block of 3 files when I visited https://www.olyham.org and the domain of the blocked files was that of Site123. Is it possible for the developer of olyham.org to get a "clean" result from BrowserGuard if he removes all infected PDF's from his site but Site123 continues to hose hundreds of infected PDF's for other users? He is working with Site123 Support, but so far the problem doesn't seem to be understood by Site123 or the developer.

OK, but BrowserGuard showed 3 linked files blocked for the site I was visiting while VT showed hundreds of malicious PDF's for the referenced Site123 domain. How did it determine only 3 files had to be blocked?

I got a chance to see BrowserGuard in action after it flagged some malicious PDF files in a site I was trying to browse. I commend Malwarebytes for their proactive approach to computer security, blocking files before they can infect your computer. I understand that suspect PDF's can be uploaded to VirusTotal, but it is not recommended to upload files with sensitive data as VirusTotal can share the file among the security community. Can I use Malwarebytes File Manager "context menu" to search a PDF file for malware?

BrowserGuard blocked a reference to static.s123-cdn-static-d.com and identified it as malware. The site I was visiting was https://www.olyham.org. I found a VirusTotal reference here - https://www.virustotal.com/gui/domain/static.s123-cdn-static-d.com/details where user Byglander reported a "False positive on asset domain used by Site123" JPopovic (Malwarebytes staff) replied - The domain is legitimately blocked due to malicious PDF files. An example: https://static.s123-cdn-static-d.com/uploads/4661447/normal_61b0edbd38451.pdf I understand Site123 is a website building and hosting site. Are all websites built using this site potentially harmful due to their malicious PDF files? When I used VirusTotal to check www.olyham.org, it showed "No security vendors flagged this URL as malicious". Are the links to s123-cdn-static-d.com in www.olyham.org what triggered the BrowserGuard block? Interestingly, VirusTotal showed s123-cdn-static-d.com as "clean" but three vendors complained when I used static.s123-cdn-static-d.com for the search. Also, only only a domain search showed the full information in "Details" -- a standard URL search did not.