Intrusion detection must evolve states SANS

Posted On 08 Jul 2013
Comment: Off

As network speeds increase, real time packet inspection is not sufficient to deal with cyber-attacks, according to Dr Johannes Ullrich, Dean of Research and a faculty member of the SANS Technology Institute. He states, ‘Faster networks are making it harder for intrusion detection techniques to keep up with the threats. Instead, organisations need to turn to a wider set of data gathering techniques to be able to spot attackers.’ Techniques such as netflow analysis and the correlation of intrusion detection alerts with other logs, such as the inspection of DNS logs, have been cited as methods that can help detect intrusion. Whilst the most common attack vector is the opening of attachments and links to infected sites that trigger zero-day attacks, Ullrich also identifies mobile devices as a growing threat. He states, ‘Apple IOS is better at stopping these threats as its devices are more closed, but Android is a real challenge and we are seeing malware, especially those attacking two-factor authentication systems, used in mobile banking applications.’ Cellular networks are also providing an alternate method for the avoidance of traditional network firewalls and IPS (intrusion protection) systems, by attacking mobile clients in order to gain access into the enterprise environment. Whilst such attacks are still rare, the do represent a longer term risk. Cellular connections can also allow communications to be intercepted and tampered with, and as such this type of vulnerability needs to be tackled.

About the Author
Brian Sims BA (Hons) Hon FSyI, Editor, Risk UK (Pro-Activ Publications) Beginning his career in professional journalism at The Builder Group in March 1992, Brian was appointed Editor of Security Management Today in November 2000 having spent eight years in engineering journalism across two titles: Building Services Journal and Light & Lighting. In 2005, Brian received the BSIA Chairman’s Award for Promoting The Security Industry and, a year later, the Skills for Security Special Award for an Outstanding Contribution to the Security Business Sector. In 2008, Brian was The Security Institute’s nomination for the Association of Security Consultants’ highly prestigious Imbert Prize and, in 2013, was a nominated finalist for the Institute's George van Schalkwyk Award. An Honorary Fellow of The Security Institute, Brian serves as a Judge for the BSIA’s Security Personnel of the Year Awards and the Securitas Good Customer Award. Between 2008 and 2014, Brian pioneered the use of digital media across the security sector, including webinars and Audio Shows. Brian’s actively involved in 50-plus security groups on LinkedIn and hosts the popular Risk UK Twitter site. Brian is a frequent speaker on the conference circuit. He has organised and chaired conference programmes for both IFSEC International and ASIS International and has been published in the national media. Brian was appointed Editor of Risk UK at Pro-Activ Publications in July 2014 and as Editor of The Paper (Pro-Activ Publications' dedicated business newspaper for security professionals) in September 2015. Brian was appointed Editor of Risk Xtra at Pro-Activ Publications in May 2018.