The 'zombie' virus which is very similar to the Troj/SymbSmsis, is hidden in a fake anti-virus app. Once installed, the virus sends all of the contact details on a user's SIM card to cybercriminals, who automatically take control the phone and send spam texts to friends and family. The texts are usually full of links that will infect others with the virus on clicking those suspicious links received in SMS.
The virus infected one million users by the end of the first week of September and has continued to grow since then. While China's National Computer Network Emergency Response Technical Team Center is working to solve the problem, at the same time around 10 more similar viruses have appeared, making it difficult to track down the culprits.
To be on safe side I personaly advice everyone not to open suspicious links in text messages, even if they're from someone you know.