Security firm Checkpoint has discovered a huge malware campaign on Google Play Store that has affected at least 36.5 million Android devices.

What the security firm found was that there are 41 Android applications that were uploaded by a Korean company that is making money by creating fake advertisement clicks from the infected devices.

The Korea-based company, Kiniwini, published the apps under the name of ENISTUDIO Corp. which contain malware, named Judy, which generate fraudulent clicks to generate revenue from advertisements.

"It is quite unusual to find an actual organization behind the mobile malware, as most of them are developed by purely malicious actors," CheckPoint researchers say.

Once downloaded, the app connects to a command and control server which sends a Java Script to the device.

"The malware opens the URLs using the user agent that imitates a PC browser in a hidden webpage and receives a redirection to another website," the researchers say. "Once the targeted website is launched, the malware uses the JavaScript code to locate and click on banners from the Google ads infrastructure."

Here is a list of the infected games (which Google has since removed):

Fashion Judy: Snow Queen style
Animal Judy: Persian cat care
Fashion Judy: Pretty rapper
Fashion Judy: Teacher style
Animal Judy: Dragon care
Chef Judy: Halloween Cookies
Fashion Judy: Wedding Party
Animal Judy: Teddy Bear care
Fashion Judy: Bunny Girl Style
Fashion Judy: Frozen Princess
Chef Judy: Triangular Kimbap
Chef Judy: Udong Maker – Cook
Fashion Judy: Uniform style
Animal Judy: Rabbit care
Fashion Judy: Vampire style
Animal Judy: Nine-Tailed Fox
Chef Judy: Jelly Maker – Cook
Chef Judy: Chicken Maker
Animal Judy: Sea otter care
Animal Judy: Elephant care
Judy’s Happy House
Chef Judy: Hotdog Maker – Cook
Chef Judy: Birthday Food Maker
Fashion Judy: Wedding day
Fashion Judy: Waitress style
Chef Judy: Character Lunch
Chef Judy: Picnic Lunch Maker
Animal Judy: Rudolph care
Judy’s Hospital: Pediatrics
Fashion Judy: Country style
Animal Judy: Feral Cat care
Fashion Judy: Twice Style
Fashion Judy: Myth Style
Animal Judy: Fennec Fox care
Animal Judy: Dog care
Fashion Judy: Couple Style
Animal Judy: Cat care
Fashion Judy: Halloween style
Fashion Judy: EXO Style
Chef Judy: Dalgona Maker
Chef Judy: ServiceStation Food
Judy’s Spa Salon

If you have any of these installed, remove them immediately.

Source: The Hacker News