Google Inc. removed 22 malicious apps from Android Market, its smartphone app store since last week — and has removed over 100 such apps this year, Computerworld reported Monday.

Among the removed apps were horoscope apps, wallpaper apps and games that came bundled with RuFraud, a program that sends text messages to 'premium' numbers to rack up charges, the article said. Lookout Security, a San Francisco company that tracks rogue apps and monitors their status, verified the existence and subsequent removal of these apps for Computerworld.

Earlier security sweeps have removed malware called Droid Dream, which can grant an attacker root access to an Android smartphone. Such access can be used to steal personal data, such as through a targeted attack on the Google Wallet payment app.