Security

The linked document discusses a new method to gain access to an internal network, even though they are shielded with firewall systems and proxy.
The document also discusses in details the design of a so-called Intrusion Agent program and the different ways to implement and diffuse it over computers networks in the purpose to break into private information systems and to steal confidential documents.

Another day and another Microsoft patch or two ... The need to install more fixes should be no surprise to the majority of corporations, but oddly most vulnerabilities still go unchecked, leaving many organizations open to attack.

The damage caused by four significant new viruses in recent days has highlighted how poor patching and lax security are making life easy for virus writers.
The worldwide alert over the Blaster worm, and its subsequent infection rate, has flagged up the failure of many IT managers to ensure that systems are properly patched.

A new variant, Blaster D, is still taking advantage of unpatched systems.

Meanwhile the "vigilante" virus, known as Nachi, seems to have been created to do the IT manager's job by automatically patching vulnerable systems before deleting itself.