Two malicious code, help each other against the anti-virus

         In the Microsoft Malware Protection Center was told about the discovery of two malicious programs running in tandem and helping each other to survive in the event of removal. It works in such a way that the download several different versions of each other, allowing them to avoid detection by antivirus engines. One of malware called Vobfus and it was first discovered in September 2009.

         This is a kind of malicious downloader that can load the other part of the code to work. Vobfus works in a way that after it reaches the computer that downloads the code from the command server program called Beebone, which works as another downloader and shakes other code.

        "Periodic sessions between Beebone Vobfus and lead to the fact that each one helps another and two programs could download malicious modules, which are not detected by anti-virus programs, "- says Hyun Choi, a virus analyst at Microsoft Malware Protection Center.

         Other malicious programs often have the character and the ability to update their code, but still did not meet the experts of different malicious programs that can communicate with each other.