Apps with 5.8 million Google Play downloads stole users’ Facebook passwords

Mateusz Slodkowski/SOPA Photos/LightRocket by way of Getty Photos

Google has given the boot to 9 Android apps downloaded greater than 5.8 million instances from the corporate’s Play market after researchers mentioned these apps used a sneaky approach to steal customers’ Fb login credentials.

In a bid to win customers’ belief and decrease their guard, the apps offered totally functioning providers for picture enhancing and framing, train and coaching, horoscopes, and removing of junk information from Android gadgets, in keeping with a put up printed by safety agency Dr. Net. The entire recognized apps provided customers an choice to disable in-app advertisements by logging into their Fb accounts. Customers who selected the choice noticed a real Fb login kind containing fields for getting into usernames and passwords.

Then, as Dr. Net researchers wrote:

These trojans used a particular mechanism to trick their victims. After receiving the mandatory settings from one of many C&C servers upon launch, they loaded the professional Fb net web page into WebView. Subsequent, they loaded JavaScript obtained from the C&C server into the identical WebView. This script was instantly used to hijack the entered login credentials. After that, this JavaScript, utilizing the strategies offered by means of the JavascriptInterface annotation, handed stolen login and password to the trojan functions, which then transferred the information to the attackers’ C&C server. After the sufferer logged into their account, the trojans additionally stole cookies from the present authorization session. These cookies had been additionally despatched to cybercriminals.

Evaluation of the malicious packages confirmed that all of them obtained settings for stealing logins and passwords of Fb accounts. Nevertheless, the attackers might have simply modified the trojans’ settings and commanded them to load the net web page of one other professional service. They might have even used a very faux login kind situated on a phishing web site. Thus, the trojans might have been used to steal logins and passwords from any service.

Dr. Net

The researchers recognized 5 malware variants stashed contained in the apps. Three of them had been native Android apps, and the remaining two used Google’s Flutter framework, which is designed for cross-platform compatibility. Dr. Net mentioned that it classifies all of them as the identical trojan as a result of they use equivalent configuration file codecs and equivalent JavaScript code to steal consumer information.

Dr. Net recognized the variants as:

The vast majority of the downloads had been for an app referred to as PIP Photograph, which was accessed greater than 5.8 million instances. The app with the following biggest attain was Processing Photograph, with greater than 500,000 downloads. The remaining apps had been:

A search of Google Play reveals that every one apps have been faraway from Play. A Google spokesman mentioned that the corporate has additionally banned the builders of all 9 apps from the shop, that means they won’t be allowed to submit new apps. That’s the suitable factor for Google to do, but it surely nonetheless poses solely a minimal hurdle for the builders as a result of they’ll merely join a brand new developer account underneath a distinct title for a one-time price of $25.

Anybody who has downloaded one of many above apps ought to totally look at their gadget and their Fb accounts for any indicators of compromise. Downloading a free Android antivirus app from a identified safety agency and scanning for extra malicious apps isn’t a foul concept, both. The providing from Malwarebytes is my favourite.

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