Network Forensics - Your Only Choice at 10G

www.wildpackets.com © WildPackets, Inc.

Jay Botelho

Director of Product Management

WildPackets

[email protected]

Follow me @jaybotelho

Network Forensics

You’re Only Choice At 10G

Show us your tweets! Use today’s webinar hashtag:

#wp_netforensics with any questions, comments, or feedback.

Follow us @wildpackets

© WildPackets, Inc. 2 Network Forensics – You’re Only Choice at 10G

Agenda

• Defining Network Forensics

• Key Technologies

• Network Forensics and Security

• Network Forensics and Network

Performance/Analysis at 10G ‒ Capturing the right data

‒ The role of real-time analysis

‒ Identifying problem areas

‒ Root-cause analysis

• Company Overview

• Product Line Overview


Defining Network Forensics


What is Network Forensics ?

• Network forensics is capturing, storing, and

analyzing network data

• It’s not like TV – employ forensics before the crime

• Marcus Ranum is credited with defining Network

Forensics as ―the capture, recording, and analysis of

network events in order to discover the source of

security attacks or other problem incidents.‖

(wikipedia)

• Network traffic is transmitted and then lost, making

network forensics a must

• Other names: packet mining, packet forensics, digital

forensics


What Purpose Does It Serve ?

• Allows us to find the

details of network events

after they have happened

• Eliminates the need to

reproduce network

problems

• Distill data to manageable

levels by employing

filters and analysis

The Network Time Machine


Why Do We Need It ?

• Tuning of intrusion detection solutions

• Identify security breaches: log files are vulnerable -

network-based evidence might be the only evidence

available for forensic analysis

• Execute lawful intercept requests,

including reconstruction

• Stop network hacks or viruses

• Identify rogue device access to the

network

• Enforce corporate compliance

policies

• Improve network performance


Key Technologies


Typical Network Forensic Analysis

• Requires the lossless capture, storage and analysis

of extremely large data volumes

• Focus on Enterprise vs. Lawful Intercept usage ‒ Concerned with the process of reconstructing a network event

• Intrusion such as a “hack” or other penetration

• Network or infrastructure outage

‒ Provides a recording of the actual incident

• Based on live IP packet data captures ‒ A new way of looking at trace file analysis

‒ Continues from where traditional network troubleshooting ends


10G Provides Unique Challenges

• Traditional NICs not up to the task

• Processing power is a limiting factor

• Storage capacity is a limiting factor

• I/O bus and disk write speeds are a limiting factor

• 10G forces clarity in analysis

• At 10G, it truly is looking for a needle in a haystack

• ―Line rate‖ – be wary of that claim!

Importance: Packet-based PM tools remain only truly effective

approach to definitive monitoring and definitive troubleshooting –

Jim Frey, Enterprise Management Associates, Inc., July 2010


10G Network Data Capture


10G Network Data Storage

• 1Gbps steady-state traffic assuming no storage

overhead:

7.68 GB/min

460 GB/hr

11 TB/day

2.9 days in a 32TB appliance

• 10Gbps:

76.8GB/min

4.6 TB/hr

110 TB/day

7.0 hours in a 32TB appliance


10G Network Analysis

• Analyze the essentials

• Be specific when possible

• Know your network – baselines are critical

• Know your limits

• Real-time vs. forensics

• Filter and slice (whenever possible)

• Anticipate hardware resource needs


Network Forensics and Security


―2011 - The Year of the Hack‖

• So named by IT security experts

• 60% of IT executives fear Advanced Persistent

Threat (APT) attacks

• 28% fear theft and disclosure from insiders

• 60% use either a written ―honor system‖ security

policy or have none at all

• 51% allow employees to download/install software

• Companies continue to allow employees to engage

in risky behaviors

Based on Bit9’s Third Annual Endpoint Survey of 765 IT executives

http://www.businesswire.com/news/home/20110830006206/en/%E2%80%9CYear-

Hack%E2%80%9D-Survey-Reveals-Enterprises-Concerned-%E2%80%9CAdvanced

http://www.businesswire.com/news/home/20110830006206/en/%E2%80%9CYear-Hack%E2%80%9D-Survey-Reveals-Enterprises-Concerned-%E2%80%9CAdvanced














Anatomy of a Breach

• Attacker exploits some mistake by

victim and installs malware to collect

data

• 98% of all records breached includes

unauthorized access via default

credentials (usually third-party

remote access) or SQL injection

(against web applications)

• Customized malware used in these

attacks more than doubled

• Most originate from external sources

• Median size of breaches is highest

for insiders

• 91% of compromised records linked

to organized criminal groups

2009 Data Breach Investigations Report, Verizon

Business RISK Team, 7/28/2010

All results are based on firsthand evidence collected during

data breach investigations conducted by Verizon Business


Anatomy of a Breach (cont.)

• Correlation between small corporate policy violations and

more serious violations

• Illegal content on a user’s machine can be an indication of a

breach down the road

• 17% of tasks highly difficult but

resulted in 95% of total records

• Hackers know where to best apply

pressure when motivated

• Most incidents do not require

difficult or expensive preventive

controls

• Mistakes and oversight hinder

security efforts more than a lack of

resources

2009 Data Breach Investigations Report, Verizon

Business RISK Team, 7/28/2010

All results are based on firsthand evidence collected during

data breach investigations conducted by Verizon Business


Forensic Analysis – Capturing An Attack

IDS/IPS System

1. Attack

bypasses firewall

3. Event logged, attack

partially tracked by IDS

2. Data Recorder records

and aggregates data

throughout attack

4. Post event analysis reveals

attacker, method, damage!

Serv

ers


Key Questions

1. Who was the intruder?

2. How did the intruder penetrate security?

3. What damage has been done?

4. Did the intruder leave anything behind?

5. How can we prevent this attack from

reoccurring?


I Didn’t Catch That? Network Forensics and Network

Performance/Analysis at 10G


Meeting the 10G Challenge – TimeLine

• Fastest network recording and real-time statistical

display — simultaneously ‒ 11.7Gbps sustained capture with zero packet loss

‒ Network statistics display in TimeLine visualization format

• Rapid, intuitive forensics search and retrieval ‒ Historical network traffic analysis and quick data rewinding

‒ Several pre-defined forensics search templates making

searches easy and fast

• A natural extension to the WildPackets product line

• Turnkey bundled solution ‒ Appliance + OmniEngine, OmniAdapter, OmniPeek Connect


11.7 Gbps Sustained CTD with Zero Packet Loss


Real-time Statistics While Capturing


Including VoIP/Video


Rapid Forensics Search and Retrieval

• Pre-defined Forensics

Search Templates

making search easier

and faster

‒ Overview

‒ Packets

‒ Expert

‒ Voice & Video


The Results


Network Forensics of Email Traffic


Web Page Reconstruction


Why Forensics?

• Validate what your logs are telling you

• Generate alarms/alerts on data you’ll never find in

logs

• Invest time analyzing, not reproducing

• Immediately begin investigating the issue – you have

a recording of the incident!

• Isolate key data – from multi-TB archives - rapidly

and intuitively

• Understand the depth of penetration for any incident


What Can You Do?

• Processes, processes, processes

• Implement a network recording/network forensics

solution

• Establish clear baselines so changes are easy to

detect

• Employ solutions that continuously monitor packet-

level security heuristics

• Actively search for minor policy violations that could

be indicators of bigger problems


Company Overview


Corporate Background

• Experts in network monitoring, analysis, and troubleshooting

‒ Founded: 1990 / Headquarters: Walnut Creek, CA

‒ Offices throughout the US, EMEA, and APAC

• Our customers are leading edge organizations

‒ Mid-market, and enterprise lines of business

‒ Financial, manufacturing, ISPs, major federal agencies,

state and local governments, and universities

‒ Over 7,000 customers / 60+ countries / 80% of Fortune 1,000

• Award-winning solutions that improve network performance

‒ Internet Telephony, Network Magazine, Network Computing Awards

‒ United States Patent 5,787,253 issued July 28, 1998 • Different approach to maintaining availability of network services


Real-World Deployments

Education

Health Care / Retail

Financial

Telecom

Government

Technology

http://www.fbiband.com/

http://www.dea.gov/


Product Line Overview


OmniPeek/Compass Enterprise Packet Capture, Decode and Analysis

• 10/100/1000 Ethernet, Wireless, WAN, 10G

• Portable capture and OmniEngine console

• VoIP analysis and call playback

Omnipliance / TimeLine Distributed Enterprise Network Forensics

• Packet capture and real-time analysis

• Stream-to-disk for forensics analysis

• Integrated OmniAdapter network analysis cards

WatchPoint Centralized Enterprise Network Monitoring Appliance

• Aggregation and graphical display of network data

• WildPackets OmniEngines

• NetFlow and sFlow

Product Line Overview


OmniPeek Network Analyzer

• OmniEngine Manager

– Connect and configure distributed OmniEngines/Omnipliances

• Comprehensive dashboards present network traffic in real-time

– Vital statistics and graphs display trends on network and application

performance

– Visual peer-map shows conversations and protocols

– Intuitive drill-down for root-cause analysis of performance bottlenecks

• Visual Expert diagnosis speeds problem resolution

– Packet and Payload visualizers provide business-centric views

• Automated analytics and problem detection 24/7

– Easily create filters, triggers, scripting, advanced alarms and alerts


Omnipliance Network Recorders

• Captures and analyzes all network traffic 24x7

– Runs our OmniEngine software probe

– Generates vital statistics on network and application performance

– Intuitive root-cause analysis of performance bottlenecks

• Expert analysis speeds problem resolution

– Fault analysis, statistical analysis, and independent notification

• Multiple Issue Digital Forensics

– Real-time and post capture data mining for compliance and troubleshooting

• Intelligent data transport

– Network data analyzed locally

– Detailed analysis passed to OmniPeek on demand

– Summary statistics sent to WatchPoint for long term trending and reporting

– Efficient use of network bandwidth

• User-Extensible Platform

– Plug-in architecture and SDK


Omnipliance Network Recorders Price/performance solutions for every application

Portable Edge Core

Ruggedized

Troubleshooting

Small Networks

Remote Offices

Datacenter Workhorse

Easily Expandable

Aluminum chassis / 17” LCD 1U rack mountable chassis 3U rack mountable chassis

Quad-Core Xeon 2.5GHz Quad-Core Intel Xeon

X3460 2.80Ghz

Two Quad-Core Intel Xeon

E5530 2.4Ghz

4GB RAM 4GB RAM 6GB RAM

2 PCI-E Slots 2 PCI-E Slots 4 PCI-E Slots

2 Built-in Ethernet Ports 2 Built-in Ethernet Ports 2 Built-in Ethernet Ports

500GB and 2.5TB SATA

storage capacity

1TB SATA storage capacity 2TB SATA storage capacity


TimeLine

• Fastest network recording and real-time statistical

display — simultaneously ‒ 11.7Gbps sustained capture with zero packet loss

‒ Network statistics display in TimeLine visualization format

• Rapid, intuitive forensics search and retrieval ‒ Historical network traffic analysis and quick data rewinding

‒ Several pre-defined forensics search templates making

searches easy and fast

• A natural extension to the WildPackets product line

• Turnkey bundled solution ‒ Appliance + OmniEngine, OmniAdapter, OmniPeek Connect


TimeLine For the most demanding network analysis tasks

TimeLine

10g Network Forensics

3U rack mountable chassis

Two Quad-Core Intel Xeon 5560 2.8Ghz

18GB RAM

4 PCI-E Slots

2 Built-in Ethernet Ports

8/16/32TB SATA storage capacity


WatchPoint Centralized Monitoring for Distributed Enterprise Networks

• High-level, aggregated

view of all network

segments

– Monitor per campus, per

region, per country

• Wide range of network

data

– NetFlow, sFlow, OmniFlow

• Web-based, customizable

network dashboards

• Flexible detailed reports

• Omnipliances must be

configured for continuous

capture


WildPackets Key Differentiators

• Visual Expert Intelligence with Intuitive Drill-down

– Let computer do the hard work, and return results, real-time

– Packet / Payload Visualizers are faster than packet-per-packet diagnostics

– Experts and analytics can be memorized and automated

• Automated Capture Analytics

– Filters, triggers, scripting and advanced alarming system combine to provide

automated network problem detection 24x7

• Multiple Issue Network Forensics

– Can be tracked by one or more people simultaneously

– Real-time or post capture

• User-Extensible Platform

– Plug-in architecture and SDK

• Aggregated Network Views and Reporting

– NetFlow, sFlow, and OmniFlow


Q&A

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#wp_netforensics with any questions, comments, or feedback.

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Thank You!

WildPackets, Inc.

1340 Treat Boulevard, Suite 500

Walnut Creek, CA 94597

(925) 937-3200