Network Services

NetSecure - External Vulnerability Scan

The potential for intruders to gain unauthorised access to systems via an organisation's Internet gateway poses a very real threat. This is often coupled with embarrassing media attention. Whilst there are a variety of ways in which 'black hat' attacks from the Internet are launched to breach the defences of even a hardened Firewall system, the reality is that many networks unwittingly advertise clues about themselves, which can be exploited by hackers.

It is common for unnecessary network services to be enabled on the gateway, for example, allowing Telnet sessions to be made to networking devices and or hosts thereby allowing a 'foot in the door'.

Reconnaissance of an identified network is the first step in any hack attempt. In order to penetrate systems, hackers gather as much information about their 'target' as possible in advance. The truth is that this is not as hard as it could be, inadvertently we disclose a lot of information about our networks onto the Internet.

If a hacker cannot gain information about a network or cannot identify a soft target he will move on to another target unless the value of the information that is on a network will make it worth spending time and resources to break into the system. Using time and resources inevitably means that the attacks and probes will become 'louder' enabling the company to stand a better chance of identifying the hack attempts (See Intrusion Detection Systems).

We can systematically investigate a customer's network from an off site Internet connection in much the same way as a hacker would, except that this is a non-disruptive test. Trend engineers keep up to date with the latest exploits, hacking methodologies, and hacking tools, which, in a controlled situation, can be utilised constructively to expose holes and bugs in versions of the customer's operating and applications software.

The External Vulnerability Scan has various options available:

• NetSecure - Silver
• NetSecure - Gold
• NetSecure - Platinum
• NetSecure - Other