Once a PC is running this malware, the hacker code tries to trick the user into opening infected PDF and Flash files. Once opened, the infected files install a keylogger or other malware. In the case of Gumblar, Google search results in IE are rewritten so that the links point to hacker sites laded with infected PDF and Flash files without the user even knowing it.
To protect yourself, follow these steps:
1. Use firewall protection
2. Install security software and scan your computer regularly. If you are using an XP machine, scan to see if your sqlsodbc.com file has become infected by downloading FileAlyzer at: http://www.softpedia.com/get/System/File-Management/FileAlyzer.shtml)
3. Don’t use Internet Explorer! (especially IE6) Use Firefox instead which is much more secure
4. Make sure your Adobe Reader, Acrobat and Flash player have all the latest patches.