What are the ways to fight botnets difficulties?

[Appaji]

For a long time zombie network is the use of computers in various configurations, some control mechanism is camouflage. As, apparently they are not user-friendly, secure application software, computer systems continue to use, especially in social networking program there are some non-technical loopholes for hackers to use the number of security vulnerabilities growing trend. Moreover, according to monitor network activity botnet zombie hunter's report, this hacker in the establishment of a flexible architecture has also become increasingly sophisticated. So I need to know the ways for fighting these botnets difficulties?

[Snake08]

Facebook, Twitter, and Myspace social networking such as increasing the utilization rate of increase, they can easily be used by hackers, and corporate IT departments are difficult to monitor them.
For example, in February of this year, held in Washington, DC ShmooCon security conference, the research specialists Nathan Hamiel and Shawn Moyer said that in the social network, users can easily upload and exchange pictures, text, music and other content, hackers is to use the natural properties of these sites to easily launch an attack.
In response to these programs attack, hacker’s use social networking to deceive a user clicks on an open link, and then implanted in the user's computer, Trojan horses, the user's computer, so become a zombie network of these hackers broiler

[Big Fish]

Most of the recent botnet activity is linked to Conficker worm viruses. Researchers said that most large-scale botnets to avoid the media monitoring, which is the reason the bad guys to succeed.
The initiator of these viruses is intended to create news, people know that their computer is infected. For example, Cimbot is used to build botnet Trojan, which now accounts for the world to sell 15% of spam.
Auto-virus technology can allow them to confuse the bad guys in order to server-side polymorphic appearance of his activities. For regular Trojan variants, the traditional anti-virus vendors to keep up with the correct AV signatures become increasingly difficult. Waledac Botnet on the use of this method for achieving success. Conficker.C, Storm, and Waledec viruses have been shifted from a centralized architecture, the type of the P2P architecture. "

[Steve123]

Trojan viruses can self-protection
More new types of zombie networks are also more adept at killing the computer security controls.
"We also found that building a botnet worm used a more sophisticated way to avoid detection" "Copy to copy them from the worms has more diverse changes. This is so anti-virus experts in the design of signature to block the process of these viruses has become more difficult. "

[Spyrus]

The whole enterprise a firewall, intrusion detection systems, proxy and URL filtering products, the annual expenditure of more than 60 billion dollars. These products are known as able to perform application control. Analysis shows that 100% of the enterprises have set up a firewall, 87% of the enterprises also equipped with 1 or multiple firewall support tools (agents, intrusion detection system, URL filtering) - but still cannot flow through the network of application software implementation of effective control.
Therefore, Trojan-maker could be relatively easy to use application software, including the creation of botnets.