Gtron Solutions, LLC

Malicious XLS attachments have been found in emails that supposedly contain information about this summer's Olympic Games in Beijing.  The trojan even goes as far as to leave behind a non-malicious Excel file after it has opened a backdoor so the user does not realize anything has happened.

As Apple products become more and more popular, hackers are showing more interest in cracking them.  Mac Forensics Lab just released a whitepaper discussing the myriad of problems presented by malware, viruses, worms, and Trojans to OS X.