66819d1f0e6e4f5696ad1c02365813cd is an intersting sample we got last week. It's not detected by our AV scanners and it is very difficult to unpack.
This malware is firewall and antivirus aware and detects debuggers. There are a bunch of strings inside of it which list things like Mydoom.j sobig.c TSUNAMI sniffer yahoobuddy NICK DDOS etc. I'm not sure if these are decoys yet or what this is for. More as I get it.