Whenever you have an opportunity to download that app, always think and ask yourself if that app is coming from a legitimate source. There are many codes written by bad boys that are flying around. Mobile malware is real and gaining a lot of popularity and the cyber criminals have become very sophisticated.
Over the weekend, mobile security firm Lookout discovered that nearly three dozen apps available through the Android Market contained a stripped-down version of the DroidDream malware that infected devices in March. The new Trojan, dubbed DroidDream Lite (DDLite), sends information about the infected phone to a central server, but does little else. Unlike the original DroidDream, it does not try to compromise the device by exploiting software flaws. Both programs were seeded in the Android Market using pirated programs in what has become a characteristic of these attacks, according to Kevin Mahaffey, chief technology officer for Lookout.
You need to be very careful before the fun turns into pain.
What is malware?
Malware, short for malicious software, consists of programming (code, scripts, active content, and other software) designed to disrupt or deny operation, gather information that leads to loss of privacy or exploitation, gain unauthorized access to system resources, and other abusive behavior. The expression is a general term used by computer professionals to mean a variety of forms of hostile, intrusive, or annoying software or program code. (wikipedia)