Subtle change could see a reduction in installation of malicious Chrome extensions

Posted by   Martijn Grooten on   Jun 13, 2018

As modern browsers have become harder to attack, malware authors have found a simple way around this: by working with the browser rather than against it. More particularly, by tricking users into installing extensions they host on official browser stores, like the Google Chrome Store.

Malicious Chrome extensions have been used for various nefarious activities, from banking fraud to delivering backdoors and stealing cryptocurrencies. Google, of course, works hard to detect and block such extensions, but as is so often the case in security, it is never 100 per cent successful.

The company has now, however, made a subtle change that should make it easier for users to detect when they are installing an extension. Until now, it has been possible for websites to offer inline installation of an extension, where a pop-up appears asking the user whether they want to install the extension. Users often read such pop-ups as if they are saying "click 'OK' to continue browsing this website", and thus unwittingly agree to the installation of extensions offered by compromised or malicious sites.

inline_install_dialog.png

Google has now banned inline installation for new extensions and later this year will disable inline installation altogether. Instead, a site that wants to offer an extension will have to send users to the Chrome Store. Of course, this won't stop gullible users form being tricked into installing malicious code, but malware authors will have to work a bit harder on social engineering.

The fight against malware is rarely about being able to stop things altogether, but about making small steps that can sometimes lead to a large reduction in the number of infections. Justin Schuh, from Google Chrome's security team, promises more changes to combat malicious browser extensions.

 

 

twitter.png
fb.png
linkedin.png
googleplus.png
reddit.png

 

Latest posts:

Subtle change could see a reduction in installation of malicious Chrome extensions

Google has made a subtle change to its Chrome browser, banning the inline installation of new extensions, thus making it harder for malware authors to trick users into unwittingly installing malicious extensions.

Paper: EternalBlue: a prominent threat actor of 2017–2018

We publish a paper by researchers from Quick Heal Security Labs in India, who study the EternalBlue and DoublePulsar exploits in full detail.

'North Korea' a hot subject among VB2018 talks

Several VB2018 papers deal explicitly or implicitly with threats that have been attributed to North Korean actors.

Expired domain led to SpamCannibal's blacklist eating the whole world

The domain of the little-used SpamCannibal DNS blacklist had expired, resulting in it effectively listing every single IP address.

MnuBot banking trojan communicates via SQL server

Researchers at IBM X-Force have discovered MnuBot, a banking trojan targeting users in Brazil, which is noteworthy for using SQL Server for command and control communication.

We have placed cookies on your device in order to improve the functionality of this site, as outlined in our cookies policy. However, you may delete and block all cookies from this site and your use of the site will be unaffected. By continuing to browse this site, you are agreeing to Virus Bulletin's use of data as outlined in our privacy policy.