At the beginning of 2006, writers of malicious code for mobile devices showed increased activity. Virus writers continued to work on honing their knowledge and skills. They put particular effort into combating antivirus programs and investigating the possibility of infecting PCs via mobile phones. During this period, the first malware for regular mobile phones appeared which used the J2ME platform to execute certain applications. The discovery of Trojan-SMS.J2ME.RedBrowser.a had probably already existed in the wild and had even found victims.”]