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PSA: Uninstall These Android Apps Immediately

Several Android apps are known to be infected with the latest “Joker” malware which silently signs up the user to subscriptions without their knowledge. According to Aleksejs Kuprins of CSIS,

“For example, in Denmark, Joker can silently sign the victim up for a 50 DKK/week service (roughly ~6,71 EUR). This strategy works by automating the necessary interaction with the premium offer’s webpage, entering the operator’s offer code, then waiting for a SMS message with a confirmation code and extracting it using regular expressions. Finally, the Joker submits the extracted code to the offer’s webpage, in order to authorize the premium subscription.”

Source: https://medium.com/csis-techblog/analysis-of-joker-a-spy-premium-subscription-bot-on-googleplay-9ad24f044451

If you have any of the following apps installed, you should immediately remove them and comb through your credit card statement for unknown or suspicious subscriptions to which you may inadvertently been charged.