Android Malware found in official Google Play apps Durak, IQ Test, Russian history app (DETAILS)

If you are an Android user, be warned that  several popular apps that were on the official Google Play store appear to have contained hidden code that trigger malware-infested pop-up adverts when a smartphone is unlocked that encourage users to click on them.

According to Antivirus company Avast, the malware-infested applications include asolitaire card game called Durak which has been downloaded between five and ten million times (according to the Google Play Store), alongside an IQ test and a Russian history-based application.

These apps are riddled with malware and have been tricking users into visiting unwanted sites, installing other apps, to fix different non-existent issues, like fake malware infections, porn-filled storage and more.

"Each time you unlock your device an ad is presented to you, warning you about a problem, e.g. that your device is infected, out of date or full of porn. This, of course, is a complete lie," wrote Avast researcher Filip Chytry. "You are then asked to take action, however, if you approve you get re-directed to harmful threats on fake pages, like dubious app stores and apps that attempt to send premium SMS behind your back or to apps that simply collect too much of your data for comfort while offering you no additional value."

Once the malware gets activated, you start seeing ads every time you unlock your device. These ads are disguised as warning messages saying that your device is infected, out of date, or full of porn. "This, of course, is a complete lie," Chytry said

Users of these apps are then prompted to take action. Users are re-directed to downloads of other infected apps that either send premium SMSes or collect too much of your personal data. Surprisingly, you are sometimes directed to legitimate security apps on Google Play, such as one from antivirus provider Quihoo 360, although even if you install these apps, the undesirable ads popping up on your phone don't stop.

Since the Avast report came out, Google has promptly removed the three malware-ridden apps and is investigating other potential apps that may have similar issues.