DroidForensics: Accurate Reconstruction of Android Attacks via Multi-layer Forensic Logging

Xingzi Yuan, Omid Setayeshfar, Hongfei Yan, Pranav Panage, Xuetao Wei, K. H. Lee
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引用次数: 16

Abstract

The goal of cyber attack investigation is to fully reconstruct the details of an attack, so we can trace back to its origin, and recover the system from the damage caused by the attack. However, it is often difficult and requires tremendous manual efforts because attack events occurred days or even weeks before the investigation and detailed information we need is not available anymore. Consequently, forensic logging is significantly important for cyber attack investigation. In this paper, we present DroidForensics, a multi-layer forensic logging technique for Android. Our goal is to provide the user with detailed information about attack behaviors that can enable accurate post-mortem investigation of Android attacks. DroidForensics consists of three logging modules. API logger captures Android API calls that contain high-level semantics of an application. Binder logger records interactions between applications to identify causal relations between processes, and system call logger efficiently monitors low-level system events. We also provide the user interface that the user can compose SQL-like queries to inspect an attack. Our experiments show that Droid Forensics has low runtime overhead (2.9% on average) and low space overhead (105 ~ 169 MByte during 24 hours) on real Android devices. It is effective in the reconstruction of realworld Android attacks we have studied.
DroidForensics:通过多层取证日志准确重建Android攻击
网络攻击调查的目标是全面重建攻击的细节,从而追溯到攻击的起源,并从攻击造成的损害中恢复系统。然而,这通常是困难的,需要大量的手工工作,因为攻击事件发生在调查前几天甚至几周,我们需要的详细信息已经无法获得。因此,法医日志记录对网络攻击调查非常重要。在本文中,我们提出了DroidForensics,一种针对Android的多层取证日志技术。我们的目标是为用户提供有关攻击行为的详细信息,以便对Android攻击进行准确的事后调查。DroidForensics由三个日志模块组成。API记录器捕获包含应用程序高级语义的Android API调用。绑定记录器记录应用程序之间的交互,以确定进程之间的因果关系,系统调用记录器有效地监视低级系统事件。我们还提供了用户界面,用户可以编写类似sql的查询来检查攻击。我们的实验表明,在真实的Android设备上,Droid Forensics具有较低的运行时开销(平均2.9%)和较低的空间开销(24小时内105 ~ 169 MByte)。它在我们研究的真实世界的Android攻击重建中是有效的。
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