A new variant of Android malware has breached the security of more than one million Google accounts, finds security researchers at Check Point Software Technologies Ltd.
The new malware campaign, named Gooligan, roots Android devices and steals email addresses and authentication tokens stored on them. With this information, attackers can access users' sensitive data from Gmail, Google Photos, Google Docs, Google Play, Google Drive, and G Suite.
"This theft of over a million Google account details is very alarming and represents the next stage of cyber-attacks," said Michael Shaulov, Check Point's head of mobile products. "We are seeing a shift in the strategy of hackers, who are now targeting mobile devices in order to obtain the sensitive information that is stored on them.”
The campaign infects 13,000 devices each day and is the first to root over a million devices. Hundreds of the email addresses are associated with enterprise accounts worldwide. Gooligan targets devices on Android 4 (Jelly Bean, KitKat) and 5 (Lollipop), which represent nearly 74% of Android devices in use today.
After attackers gain control over the device, they generate revenue by fraudulently installing apps from Google Play and rating them on behalf of the victim. Every day Gooligan installs at least 30,000 apps on breached devices, or over 2 million apps since the campaign began.
Check Point reached out to the Google security team immediately with information on this campaign. "We appreciate Check Point's partnership as we've worked together to understand and take action on these issues. As part of our ongoing efforts to protect users from the Ghost Push family of malware, we've taken numerous steps to protect our users and improve the security of the Android ecosystem overall," stated Adrian Ludwig, director of Android security, Google.
Check Point's Mobile Research Team first encountered Gooligan's code in the malicious SnapPea app last year. In August 2016, the malware reappeared with a new variant and has since infected at least 13,000 devices per day. About 40% of these devices are located in Asia and about 12% are in Europe.
Hundreds of the exposed email addresses are associated with enterprises around the world. The infection begins when a user downloads and installs a Gooligan-infected app on a vulnerable Android device, or by clicking on malicious links in phishing attack messages.
Check Point is offering a free online tool (https://gooligan.checkpoint.com/) that allows users to check if their account has been breached.
"If your account has been breached, a clean installation of an operating system on your mobile device is required. This complex process is called flashing, and we recommend powering off your device, and approaching a certified technician or your mobile service provider, to re-flash your device," added Shaulov.