Today, I found in my E-Mail a large number of W32.Netsky.B@mm viruses. Currently, every 3 to 7 seconds, a zombie system across the internet is attempting to infect my network. In order to reduce bandwidth consumption from this attack, I am taking the following actions:
- The "sending" E-Mail server must declare the size of the E-Mail, in advance (practically all do this, however the zombie spammers/virus ridden systems don’t).
- Any E-Mail over 20,000 bytes is rejected and the connection is dropped before it starts to be sent across the internet.
More information can be found here:
- https://www.broadcom.com/support/security-center/detected-writeup?docid=2004-021812-2454-99
To ensure no confusion exists: I did NOT catch anything! I am being sent this latest attack from OTHER INFECTED COMPUTERS! As many viruses do, it spoofs the "from" address to mask where it "really" came from.
I have Ranted about viruses before and this is no exception. If anything "funny" is happening with your system, ensure your scanner is completely up to date and read all of the recent attacks located on Symantec.com or your favorite security site.
I have said it before and I will say it again: I will never send you or anyone else a file attachment out of the blue. If you did receive such a thing seemingly from "me," delete it immediately.