Judy malware affects 36.5 million Android users – here’s how to check if your smartphone is infected

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Security experts have revealed revealed that the number of Android devices infected with Judy Malware may be much more than first thought.

The malware which can be downloaded via the Google Play Store, was discovered in 41 apps developed by a Korean company called Kiniwini.

Worryingly, some of the apps have been available for several years although they have now been removed from the Play Store after Google were notified by Check Point.

The malware which is known as “Judy” is an “auto-clicking adware that uses infected devices to generate fraudulent clicks on ads. This, in turn, generates revenues for the people who are behind it.”

Check Point believe that the apps have been downloaded anywhere between 4.5 and 18.5 million times with up to 36.5 million devices affected.

A list of the malicious apps developed by Kiniwini was released by Check Point and is available below:

– 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

You can read Check Point’s full report on the malware by visiting their website.

How to check if your smartphone is infected with Judy Malware

Judy malware

The first thing to do is to check the list above to see if you have installed any of the apps listed above.

If you have you need to delete it immediately.

You should also a run a full virus scan of your device.

Failing that, the only other option is to perform a factory reset of your device. You can do this by going to:

Settings > Backup & reset > Factory data reset and then tap Reset phone or Reset device.

However, this should only be a last resort.

To prevent your device being infected with malware in the future, make sure you have an anti virus app installed and kept up to date on your device at all times.

You should also only ever download apps from the Google Play Store. However, as the Judy Malware has shown, this is no guarantee your device will not get infected with malware or other viruses.

Even if you download an app from the Google Play Store, only stick to apps from recognised brands or from sites and services you are familiar with.

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