HERMIT CRAB Holistic Evidence Reconstruction (of) Malware Intrusion

Techniques (for) Conducting Real-Time Analysis (of) Behavior

The Team

Dr. Chao H. Chu, CEO

Brian Reitz, CISO

Matthew Maisel,

CIO

Albert Chen, Server Admin

Matthew Dinkel

The Idea

Source: http://www.xkcd.com/350/

Network by XKCD

The Purpose

Malware writers use obfuscation and sophisticated behavior to cover up

their digital tracks and move quickly from host to host.

Polymorphism "Fast-flux" DNS migration

Payload verification

XOR-encrypted shellcode

Static Analysis is Difficult

"Finally, there is post-mortem analysis, the study of program behavior by looking at the after effects of execution. ... [It] is often the only tool available after an incident."

-Dr. Wietse Zweitze Venema

Meet Frank the Hermit Crab

“Shout out to Tom Sennett”

“Forensic Response Analytic Network Kit”

Xen/Hermit Crab Architecture

Xen hypervisor

Ubuntu Dom0 Ubuntu Hardy Server ssh.d vnc

Hardy Heron 1

Hardy Heron 2

Hardy Heron 3 OSSIM

Open Source Security Information Management (OSSIM)

OSSIM provides a strong correlation engine, detailed low,

medium and high level visualization interfaces, and

reporting and incident management tools, based on a set of defined assets such as hosts, networks, groups and

services.

OSSIM Components Arpwatch

• used for MAC anomaly detection.

P0f • used for passive OS detection and OS change analysis.

Nessus • used for vulnerability assessment and for cross correlation (IDS vs Security Scanner).

Snort • the IDS, also used for cross correlation with nessus.

Spade • the statistical packet anomaly detection engine. Used to gain knowledge about attacks without signatures.

Ntop • which builds an impressive network information database from which we can identify aberrant behavior/anomaly detection.

Nagios •  fed from the host asset database, it monitors host and service availability information.

OSSEC •  integrity, rootkit, registry detection, and more.

OSSIM Architecture

OSSIM Profiles

All-In-One Server

Sensor

Similar Projects

The Virtual Security

Labs

Network Analysis Lab (esp. Snort)

Malware Analysis lab

Email Recovery Exercise

DEMONSTRATION

SSH access

•  To dom0

•  And domUs

Xen overview

DomU networking

•  Internal networking

•  External networking

OSSIM Portal

Executive dashboard

Aggregated risks

Incident tickets

Security events

Vulnerability assessments

Monitors

Useful for tracing security incidents

Forensic console

References 1.  Brand, Murray. Forensic Analysis Avoidance Techniques of Malware. Edith Cowan University.

http://scissec.scis.ecu.edu.au/conferences2008/proceedings/2007/forensics/06_Brand%20-%20Forensic%20Analysis%20Avoidance%20Techniques%20of%20Malware.pdf

2.  Chaganti, Prabhakar. Xen Virtualization. Packt Publishing: 2007. http://www.packtpub.com/xen-virtualization-open-source-linux-servers/book

3.  Distler, Dennis. Malware Analysis: An Introduction. SANS Institute InfoSec Reading Room. http://www.sans.org/reading_room/whitepapers/malicious/malware_analysis_an_introduction_2103?show=2103.php&cat=malicious

4.  “InMAS: Internet Malware Analysis System”. CWSandbox. University of Mannheim. http://www.cwsandbox.org/

5.  Lyon, Gordon. “Chapter 12. Zenmap GUI Users’ Guide: Surfing the Network Topology.” Nmap Network Scanning. http://nmap.org/book/zenmap-topology.html

6.  Masgood, S.G. “Malware Analysis for Administrators.” SecurityFocus. http://www.securityfocus.com/infocus/1780

7.  Munroe, Randall. “Network.” XKCD. http://xkcd.com/350/ 8.  “OSSIM Architecture.” OSSIM Documentation Wiki. Alienvault.

http://www.ossim.net/dokuwiki/doku.php?id=documentation:architecture 9.  Provos, Neil. “Developments of the Honeyd Virtual Honeypot”. http://www.honeyd.org/index.php 10.  Roesch, Martin and others. “About Snort”. Sourcefire. http://www.snort.org/snort 11.  “SiLK - System for Internet-Level Knowledge”. CERT NetSA. Carnegie Mellon University Software Engineering

Institute. http://tools.netsa.cert.org/silk/ 12.  Venema, Wietse. “Chapter 6: Malware Analysis Basics.” Forensic Discovery.

http://www.porcupine.org/forensics/forensic-discovery/chapter6.html 13.  “Xen Hypervisor - Leading Open Source Hypervisor for Servers”. Xen.org. Citrix System, Inc.

http://www.xen.org/products/xenhyp.html 14.  "Virtual-machine based security services." Professors Peter Chen and Brian Noble. <http://

www.eecs.umich.edu/virtual/>.