After reviewing the file in nano, I discovered some disturbing entries. One such entry is provided below:
Date: Fri, 16 Aug 2013 00:53:45 -0400
User-Agent: Heirloom mailx 12.5 7/5/10
Content-Type: text/plain; charset=us-ascii
I suspect my NAS has been compromised. Is it possible to reinstall the operating system without destroying data currently located on the SATA drive? I have three partitions, sda1 for root, sda2 for swap and sda3 for media. I'm not opposed to transferring files, wiping the device and transferring them back, but I'd like to save time.
What thoughts do you guys have?