FloGuard: Cost-Aware Systemwide Intrusion Defense via Online Forensics and On-Demand IDS Deployment

Zonouz, S., Joshi, K., Sanders, W.H.
Citation:

International Conference on Computer Safety, Reliability, and Security (SafeComp'11), Lecture Notes in Computer Science Volume 6894, 2011, pp. 338-354.

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Abstract:

Detecting intrusions early enough can be a challenging and expensive endeavor.While intrusion detection techniques exist formany types of vulnerabilities, deploying them all to catch the small number of vulnerability exploitations that might actually exist for a given system is not cost-effective. In this paper, we present FloGuard, an on-line intrusion forensics and on-demand detector selection framework that provides systems with the ability to deploy the right detectors dynamically in a cost-effective manner when the system is threatened by an exploit. FloGuard relies on often easy-to-detect symptoms of attacks, e.g., participation in a botnet, and works backwards by iteratively deploying off-the-shelf detectors closer to the initial attack vector. The experiments using the EggDrop bot and systems with real vulnerabilities show that FloGuard can efficiently localize the attack origins even for unknown vulnerabilities, and can judiciously choose appropriate detectors to prevent them from being exploited in the future.

Publication Status:
Published
Publication Type:
Proceedings
Publication Date:
01/01/2011
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