Download Taking Control of Advanced Threats

Taking Control of the
Advanced Threat
Problem
Adam Hogan, Security Engineer, Sourcefire
@adamwhogan
[email protected]
Agenda
 Frame the Advanced Threat Problem
 Define “Next-Gen Security”
 Traditional Network-Based Solutions: NG-IPS
and NGFW
 Endpoint Approach to Advanced Malware
(Cloud Supported)
IT Environments are Changing Rapidly
Devices
Networks
Application
s
VoIP
Virtualization
Mobilization
Consumerization
Threats are Increasingly Complex
Targeted | Organized
Relentless | Innovative
Client-side Attacks
Malware Droppers
Advanced Persistent Threats
2010 Ponemon Institute Study
 Published in March 2011
 51 U.S. companies interviewed with
breaches that occurred in 2010
▸ 4,200 to 105,000 records stolen
▸ Breach costs ranged from $780,000 to
$35.3 million
 Report highlights:
▸ Average data breach cost: $7.2 million
▸ Average cost per stolen record: $214
▸ 31% of breaches were criminal attacks
▸ Breaches related to criminal attacks are
the most expensive
▸ Customer turnover remains the main
driver of data breach costs
Professionalization of Hacking
“Once a deviant industry is
professionalized, crackdowns
merely promote innovation.”
Nils Gilman, 4th European Futurists Conference
“The criminal breaks the monotony
and humdrum security of bourgeois
life, he thereby insures it against
stagnation, and he arouses that
excitement and restlessness without
which even the spur of competition
would be blunted”
Karl Marx
A Closer Look
Hacktivism
Targeted Attacks
Threats Change —
Traditional Security Products Do Not
Static | Inflexible
Closed/Blind | Labor Intensive
“Begin the
transformation to
context-aware and
adaptive security
infrastructure now as
you replace legacy
static security
infrastructure.”
- Neil MacDonald
VP & Gartner Fellow
Source: Gartner, Inc., “The Future of
Information Security is Context Aware
and Adaptive,” May 14, 2010
Next Gen Security is…
Agile Security
…a continuous process to respond to continuous change.
You Can’t Protect What You Can’t See
 Breadth: who, what, where, when
 Depth: as much detail as you need
 Real-time data
 See everything in one place
Threat
s
Device
s
Applications
Network
Agile Security
Vulnerabilities
OS
Users
Files
“Seeing” provides information superiority
 Gain insight into
the reality of your
IT and security
posture
 Get smarter by
applying
intelligence
 Automatically
optimize defenses
 Lock down your
network to policy
 Leverage open
architecture
 Block, alert, log
modify, quarantine,
remediate
 Respond via
automation
 Reduce the ‘noise’
 Configure custom
 Correlate,
prioritize, decide
fit security
Key: intelligence & automation
Security Before, During & After the Attack
Before
During
After
Policy & Control
Identification & Block
Analysis & Remediation
Discover
environment
Detect
Determine Scope
Prevent
Contain
Implement access
policy
Remediate
Harden assets
What is needed is a new approach to
protect your organization
What Can You Do?
 Assess your vendors by assuming you will be
hacked
▸p.s., you will be have been.
 Your security tools are tools.
▸Forget about set-and-forget tech and think about how
each process, program or product helps your analysts
keep you safe.
Exploring Detection
 There are some really useful rules not on by
default
▸INDICATOR-OBFUSCATION
▸Javascript obfuscation fromCharCode, non alphanumeric
▸Hidden iFrames
▸Excessive queries for .cn/.ru
▸HTTP POST to a JPG/GIF/PNG/BMP ?
Java 0-Day
 SIDs 25301, 25302
 Largely used by exploit kits (Blackhole, Cool Kit,
Nuclear, Redkit) - covered
▸Why is java.exe downloading calc.exe?
BTW, User Agents are telling
 No, really:
▸User-Agent: Malware
▸(RFC 3514 anybody?)
 Unless your proxy
rewrites them all...
What can we do? Communication
 Watch hackers.
 Many aren’t that sneaky. (L|H)OIC source code
is public, for crying out loud.
▸LOIC packet contains: “U dun goofed”
▸HOIC botched protocol, used two spaces where one
is allowed.
 They recruit! Publicly. Get on twitter. Watch
pastebin.org. Scrape it. Use google alerts if you
can’t script.
What Can You Do?
 Hire analysts
▸It’s going to cost you.
▸And if they aren’t trained they depreciate.
Example: “Agile Security” Fuels
Automation in an IDS/IPS
IT Insight
Impact Assessment
Spot rogue hosts, anomalies,
policy violations, and more
Threat correlation reduces
actionable events by up to 99%
Automated Tuning
User Identification
Adjust IPS policies automatically
based on network change
Associate users with security
and compliance events
Reduce Risk with: Application Control
– on the IPS!
 Control access to Web-enabled apps and devices
▸ “Employees may view Facebook, but only Marketing may
post to it”
▸ “No one may use peer-to-peer file sharing apps”
Over 1,000
apps, devices,
and more!
Reduce Risk with: IP Reputation
 Block and Alert on:
▸Botnet C&C Traffic
▸Known Attackers
▸Malware, Phishing, and
Spam Sources
▸Open Proxies and
Relays
 Create Your Own Lists
 Download from
Sourcefire or Third
Parties
So, what is the difference
between NG-IPS and
NGFW?
Gartner Defines NGIPS & NGFW
Next-Gen IPS (NGIPS)
Next-Gen Firewall (NGFW)
 Standard first-gen IPS
 Standard first-gen firewall
 Application awareness and
 Application awareness and
full-stack visibility
full-stack visibility
 Context awareness
 Integrated network IPS
 Content awareness
 Extrafirewall intelligence
 Agile engine
“Next-generation network IPS will be incorporated
within a next-generation firewall, but most nextgeneration firewall products currently include firstgeneration IPS capabilities.“
Source: “Defining Next-Generation Network Intrusion Prevention,” Gartner, October 7, 2011.
“Defining the Next-Generation Firewall,” Gartner, October 12, 2009
Next-Generation IPS Comparison
What is a Next-Generation Firewall?
 Stateful First-Generation Firewall
▸ Stateful protocol inspection
▸ Switching, routing and NAT
 Integrated Network Intrusion Prevention
▸ Not merely “co-located”
▸ Includes vulnerability- and threat-facing signatures
 Application Awareness with Full-Stack Visibility
▸ Example: Allow Skype, but disable Skype file sharing
▸ Make Facebook “read-only”
 Extrafirewall Intelligence
▸ User directory integration
▸ Automated threat prevention policy updates
Gartner on Next-Generation IPS
“Next-generation network IPS
will be incorporated within a
next-generation firewall, but
most next-generation firewall
products currently include firstgeneration IPS capabilities.”
Source: “Defining Next-Generation Network
Intrusion Prevention,” Gartner, October 7, 2011
✔
✔
✔
✔
Application awareness
Contextual awareness
Content awareness
Agile engine
Available now on
Sourcefire.com
Ponemon NGFW Survey Highlights
 Survey conducted in
October 2011
 2,561 responses
 Key Results:
▸Most NGFWs augment
(not replace) existing
firewalls
▸IPS component rated
“most important” for
securing data
What about an Endpoint
Approach to the Advanced
Threat Problem?
Threats Continue to Evolve
The likelihood that you will be attacked by
advanced malware has never been greater.
75%
Of attacks
are seen on
only one
computer
“Nearly 60% of respondents were at least ‘fairly certain’ their company
had been a target.” – Network World (11/2011)
Cost of Advanced Malware
Solve the Problem at the Endpoint
 Action at point of entry
▸Best place to stop client-side
attacks is on the client
 Awareness at source
▸Focus where files are executed
▸Do not miss threats due to
encryption
Secure Endpoints - Wherever They Are.
What is needed to fight advance
malware at the Endpoint?
 Clients need better visibility to detect
and assess advanced malware.
Visibility answers questions like:
▸
▸
▸
▸
Do we have an advanced malware problem?
Which endpoint was infected first?
How extensive is the outbreak?
What does the malware do?
 Clients also need help regaining
control after the inevitable attack.
Control answers questions like:
▸ What is needed to recover?
▸ How can we stop other attacks?
Cloud-Based Advanced Malware
Protection – Sample Architecture
Lightweight Agent
• Watches for move/copy/execute
• Traps fingerprint & attributes
Cloud Analytics &
Processing
• Transaction Processing
• Analytics
• Intelligence
Web-based Manager
Agile Security for Advanced Malware –
Endpoint Benefits

SEE
▸ Advanced malware at the source
▸ Patient 0 + propagation paths
▸ APT reporting

LEARN
▸ Real-time root cause analysis of threats
▸ Collective immunity & comparative reporting
▸ Data mining & machine learning

ADAPT
▸ Custom detections/signatures
▸ Application control
▸ Whitelisting

ACT
▸ Immediate & retrospective remediation
▸ Action at the point of entry
▸ Continuous scans in cloud
Regain Control of Your Environment
 Outbreak control
▸Custom Signatures for
immediate response
▸Whitelisting
▸Application Control
 Immediate & retrospective remediation
▸Automatic remediation of damaged
endpoints with Cloud Recall
▸Collective Immunity
Arm YOU to fight advanced malware
Thank You.