Beware:Malware called “Judy” Infected Around 8.5 to 36.5 Million Users

A New Android Malware Called “Judy” found in google play store infected 41 Apps which all are created by a Korean company. This “Judy” Malware is an auto-clicking adware which leads to forcing the users to Click the ads.

This Malware performing plenty of fraudulent clicks on advertisements Generated by infected applications for increasing the revenue for Malware Authors.

As per the Estimation is done by Checkpoint, “Judy” Malware Reached Around  8.5 and 36.5 million users around the world.its makes a big issue for users who all are affected by this infection since it has done a huge amount of reach.

This Malware was found on 41 apps developed by a Korean company. Playstore Malware like HummingBadFalseGudeDridex is threatening in a similar way of infection and especially Android users.

“Judy” Malware Downloads Estimated between 4.5 million and 18.5 million Android Users and Few apps are surviving in play store in many years.

Judy Malware in Playstore (Source: checkpoint)

How does Judy work?

A bridgehead app use for establishing a connection into victims Device which has been Bypassed the Play store Protection and inserted into app store.

The C&C server connection will Establish once user a user Downloads a Malicious App.

According to Checkpoint ,The server replies with the actual malicious payload, which includes JavaScript code, a user-agent string and URLs controlled by the malware author. 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.

JavaScript code is used to locate and click on banners from the Google ads infrastructure.so once click the ads then malware authors will receive a payment from the Website Developers.

Judy” Infected Apps and counts

According to Checkpiont Estimated Downloads of Judy Malware,

Package name App name Date Min Max
air.com.eni.FashionJudy061 Fashion Judy: Snow Queen style 24.3.17 100,000 500,000
air.com.eni.AnimalJudy013 Animal Judy: Persian cat care 14.4.17 100,000 500,000
air.com.eni.FashionJudy056 Fashion Judy: Pretty rapper 24.3.17 50,000 100,000
air.com.eni.FashionJudy057 Fashion Judy: Teacher style 24.3.17 50,000 100,000
air.com.eni.AnimalJudy009 Animal Judy: Dragon care 14.4.17 100,000 500,000
air.com.eni.ChefJudy058 Chef Judy: Halloween Cookies 10.4.17 100,000 500,000
air.com.eni.FashionJudy074 Fashion Judy: Wedding Party 7.4.17 50,000 100,000
air.com.eni.AnimalJudy036 Animal Judy: Teddy Bear care 16.4.17 5,000 10,000
air.com.eni.FashionJudy062 Fashion Judy: Bunny Girl Style 24.3.17 50,000 100,000
air.com.eni.FashionJudy009 Fashion Judy: Frozen Princess 7.4.17 50,000 100,000
air.com.eni.ChefJudy055 Chef Judy: Triangular Kimbap 10.4.17 50,000 100,000
air.com.eni.ChefJudy062 Chef Judy: Udong Maker – Cook 10.4.17 10,000 50,000
air.com.eni.FashionJudy067 Fashion Judy: Uniform style 24.3.17 10,000 50,000
air.com.eni.AnimalJudy006 Animal Judy: Rabbit care 14.4.17 100,000 500,000
air.com.eni.FashionJudy052 Fashion Judy: Vampire style 24.3.17 100,000 500,000
air.com.eni.AnimalJudy033 Animal Judy: Nine-Tailed Fox 18.4.17 100,000 500,000
air.com.eni.ChefJudy059 Chef Judy: Jelly Maker – Cook 10.4.17 50,000 100,000
air.com.eni.ChefJudy056 Chef Judy: Chicken Maker 10.4.17 50,000 100,000
air.com.eni.AnimalJudy018 Animal Judy: Sea otter care 14.4.17 100,000 500,000
air.com.eni.AnimalJudy035 Animal Judy: Elephant care 16.4.17 5,000 10,000
air.com.eni.JudyHappyHouse Judy’s Happy House 10.4.17 100,000 500,000
air.com.eni.ChefJudy036 Chef Judy: Hotdog Maker – Cook 29.3.17 50,000 100,000
air.com.eni.ChefJudy063 Chef Judy: Birthday Food Maker 10.4.17 50,000 100,000
air.com.eni.FashionJudy051 Fashion Judy: Wedding day 20.4.17 100,000 500,000
air.com.eni.FashionJudy058 Fashion Judy: Waitress style 24.3.17 10,000 50,000
air.com.eni.ChefJudy057 Chef Judy: Character Lunch 10.4.17 100,000 500,000
air.com.eni.ChefJudy030 Chef Judy: Picnic Lunch Maker 10.4.17 500000 1000000
air.com.eni.AnimalJudy005 Animal Judy: Rudolph care 14.4.17 100,000 500,000
air.com.eni.JudyHospitalBaby Judy’s Hospital:pediatrics 10.4.17 100,000 500,000
air.com.eni.FashionJudy068 Fashion Judy: Country style 24.3.17 10,000 50,000
air.com.eni.AnimalJudy034 Animal Judy: Feral Cat care 16.4.17 10,000 50,000
air.com.eni.FashionJudy076 Fashion Judy: Twice Style 20.4.17 100,000 500,000
air.com.eni.FashionJudy072 Fashion Judy: Myth Style 20.4.17 50,000 100,000
air.com.eni.AnimalJudy022 Animal Judy: Fennec Fox care 14.4.17 100,000 500,000
air.com.eni.AnimalJudy002 Animal Judy: Dog care 14.4.17 100,000 500,000
air.com.eni.FashionJudy049 Fashion Judy: Couple Style 24.3.17 100,000 500,000
air.com.eni.AnimalJudy001 Animal Judy: Cat care 14.4.17 100,000 500,000
air.com.eni.FashionJudy053 Fashion Judy: Halloween style 7.4.17 100,000 500,000
air.com.eni.FashionJudy075 Fashion Judy: EXO Style 7.4.17 50,000 100,000
air.com.eni.ChefJudy038 Chef Judy: Dalgona Maker 28.3.17 100,000 500,000
air.com.eni.ChefJudy064 Chef Judy: ServiceStation Food 10.4.17 10000 50000
air.eni.JudySpaSalon Judy’s Spa Salon 10.4.17 1,000,000 5,000,000
Total     4,620,000 18,420,000

Tushar Shinde

Certified Ethical Hacker,Technical Writer,

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