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Google Ad Disguising Itself as www.gimp.org

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21–30 of 230 posts

Re: Google Ad Disguising Itself as www.gimp.org

#21

This is also a huge issue with Blender and pops up on /r/blender from time to time. (Here's a few random recent examples: https://redd.it/xxkx5s https://redd.it/vvrxko https://redd.it/xwkky8 https://redd.it/vuqu1r ) Ad networks and content providers get up in arms over widespread ad blocking but then allow stuff like this through.

Yeah, blocking ads quickly became security improvement...

Re: Google Ad Disguising Itself as www.gimp.org

#23

Not to defend Google but this has been against Ad Words terms for as long as I can remember. It’s surprising they found a way to evade auto detection for this.

> against Ad Words terms

Oh great, they'll get their account closed and need to make another one to continue scamming people.

How about Google fixes this by displaying the URL that the ad actually goes to?

Of course they don't want to do this because the URL with all of the tracking parameters looks ugly and it would hurt conversion rates. $$$ > user safety.

Re: Google Ad Disguising Itself as www.gimp.org

#25

How is it even possible to spoof the shown URL?

It's just a setting in Google AdWords. The display URL and target URL are not related. You can also play tricks like a "tracking URL template" that is a URL that can be on another domain and receives the "target URL" as a parameter. It is expected to redirect to the correct URL, of course nothing enforces this other than a manual review. I can't believe that Google allows this but tracking is clearly more important t…

Of course it is, they live off ads.

Re: Google Ad Disguising Itself as www.gimp.org

#26
post #14

IMO checksums more or less offer a false sense of security for users if they're stored/shared on the same page/domain as the download, since it'd be trivial for a bad actor to change them if the files are compromised. Linux mint, for example, the attacker updated the checksums for the ISOs on the page when it was compromised https://www.infoworld.com/article/3036178/lesson-from-linux-... I don't really have a solid s…

OpenPGP signing keys have similar problems. Web of Trust is useless if you don't know any developers to begin with, dates on public keys can be forged, and false signatures can be forged by creating a large number of other false keys. False keys can be made more misleading using 32-bit short Key ID collision (and don't blame OpenPGP for this, OpenPGP is notorious for its complexity but at least it tried, meanwhile alternative tools like OpenBSD's signify does not attempt to address this problem - these tools of course are simpler).

Surprisingly, I think no attacker has ever forged a OpenPGP signature in a real-world security incident, likely because there's a lack of overlap between crypto nerds and crackers.

Though, public keys do not change often and leave somewhat of an "audit trail". I usually search the key fingerprint on the web to see if it has been mentioned elsewhere as a quick check. Some projects store signing keys in an official upstream git repository. It's somewhat of a higher guarantee, but one can still creates a false upstream page for phishing... But I guess it's too much of an effort so nobody has tried to do this, yet.

Thankfully, for distro users, it's only something for packagers to worry about, end users always receive verified packaged via the distro package manager.

Re: Google Ad Disguising Itself as www.gimp.org

#27

Remind me why Google even allows ads in rank 1 on brand terms? I remember when "don't be evil" Google would talk about how ads are in a different color on the right sidebar.

Not only do they allow it, they actively encourage it. They tell businesses that it's really important to buy ad space on searches for your own brand name so that a competitor doesn't.

The way they say it really comes off like a protection racket. "Nice number one spot for searches for your brand name you have there, would be a shame if anything were to happen to it."

They make people feel better about it by giving a steep discount over normal ads, but that doesn't make it less of a racket.

Re: Google Ad Disguising Itself as www.gimp.org

#28
post #25

Earlier quoted context omitted.

It's just a setting in Google AdWords. The display URL and target URL are not related. You can also play tricks like a "tracking URL template" that is a URL that can be on another domain and receives the "target URL" as a parameter. It is expected to redirect to the correct URL, of course nothing enforces this other than a manual review. I can't believe that Google allows this but tracking is clearly more important t…

Of course it is, they live off ads.

Yes, but people don't come to Google for ads, so they need to balance the benefits and harm to the users to avoid losing the traffic.

Re: Google Ad Disguising Itself as www.gimp.org

#29

How is it even possible to spoof the shown URL?

It's just a setting in Google AdWords. The display URL and target URL are not related. You can also play tricks like a "tracking URL template" that is a URL that can be on another domain and receives the "target URL" as a parameter. It is expected to redirect to the correct URL, of course nothing enforces this other than a manual review. I can't believe that Google allows this but tracking is clearly more important t…

I don't have as much a problem with them hiding the display url, but what shocks me is how it also masks the URL in the status bar. If I can right-click and copy the correct URL, then why isn't Chrome* showing me that URL down below?

*Yeah, I know, I kind of answered my own question. So I guess it's rhetorical, and less shocking in retrospect.

Re: Google Ad Disguising Itself as www.gimp.org

#30
post #14

IMO checksums more or less offer a false sense of security for users if they're stored/shared on the same page/domain as the download, since it'd be trivial for a bad actor to change them if the files are compromised. Linux mint, for example, the attacker updated the checksums for the ISOs on the page when it was compromised https://www.infoworld.com/article/3036178/lesson-from-linux-... I don't really have a solid s…

Put the checksums in a separate system such as the DNS. Use DNSSEC on your domains. Manage your DNS system as an isolated system (don't mix your HTTP/Email/Other stuff with your DNS provider). Now, users may verify the downloads you provide at your website by getting checksums from the DNS.

DANE may be of interest here as well:

https://www.infoblox.com/dns-security-resource-center/dns-se...

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