Symantec researchers recently came across more than 200 Japanese one-click fraud Android apps being offered on Google Play by over 50 developers -- upon installation, the apps, which claim to deliver porn videos, display user information taken from the device and demand payment from the victim.

Symantec identifies the malware as Android.Oneclickfraud.

According to Symantec's Joji Hamada, the apps, which were first spotted by researchers two months ago, can now be found easily on Google Play just by searching for Japanese words related to porn and video. The apps themselves have no functionality -- their sole purpose is to lure victims to install and open them.

"These apps have been downloaded at least 5,000 times in the last two months," Hamada writes. "As far as victims go, we are not aware of how many of these users actually paid money to the scammers; the 'service' costs about 99,000 yen (approximately US$1,000). It certainly must be worth the time and effort for the scammers as they have continued doing business for over two months."