The Members Forum

Spam
continues to grow largely due to the growth in malicious botnets.
Many botnets are command-and-control systems used by criminals and are
still the main way that spam is spewed into your e-mail box.
M86 Security says that the
worldwide spam
volume has now climbed to 230 billion messages per day, up from
200 billion at the start of 2010.

America's
10 most wanted botnets

M86 Security has created the "Top Ten Most Wanted" Spam-Spewing
Botnets list, many of them are believed to be controlled in Eastern
Europe by criminals who manipulate compromised systems, mostly PCs,
around the world to generate spam, according to M86.

1. Rustock (generating 43% of all spam)

The current king of spam, its malware employs a kernel-mode rootkit,
inserts random text into spam and is capable of TLS
encryption. Concentrates solely on pharmaceutical spam.

2. Mega-D (10.2%)

A long-running botnet that has had its ups and downs, owing to the
attention it attracts from researchers. Concentrates mostly on
pharmaceutical spam.

installed alongside Pushdo on the same host.

http://www.mycomputerplayground.com/index.php?option=com_content&view=article&id=734:the-top-10-most-wanted-spam-spewing-botnets-&catid=31:general&Itemid=46