john scrimsher, cissp, ccna [email protected] host based security
TRANSCRIPT
Why Host Based Security?
Perimeter Security vs. Host Based
66%
$34%
$$$
Why Host Based Security?
MalwareInternal Threats
Employee Theft Unpatched systems
What is Malware?
Anything that you would not want deliberately installed on your computer.
VirusesWormsTrojansSpywareMore……
Where are the threats?
Un-patched ComputersEmailNetwork File SharesInternet DownloadsSocial EngineeringBlended ThreatsHoaxes / Chain Letters The Common Factor
Privacy - Phishing
Email messages sent to large distribution lists.
Disguised as legitimate businessesSteal personal information
Privacy - Identity Theft
Since viruses can be used to steal personal data, that data can be used to steal your identity
PhishingKeystroke loggersTrojansSpyware
Social Engineering
… 70 percent of those asked said they would reveal their computer passwords for a …
Schrage, Michael. 2005. Retrieved from http://www.technologyreview.com/articles/05/03/issue/review_password.asp?p=1
Bar of chocolate
Legal Issues
Many countries are still developing laws
Privacy Laws Investigations Content Security
Instant Messaging Internet Email
Kaspersky Quote
"It's hard to imagine a more ridiculous situation: a handful of virus writers are playing unpunished with the Internet, and not one member of the Internet community can take decisive action to stop this lawlessness.The problem is that the current architecture of the Internet is completely inconsistent with information security. The Internet community needs to accept mandatory user identification - something similar to driving licenses or passports.We must have effective methods for identifying and prosecuting cyber criminals or we may end up losing the Internet as a viable resource."
Eugene KasperskyHead of Antivirus Research
Regulatory Issues
Sarbanes Oxley Act (2002)Graham-Leach-Bliley Act (1999)Health Information Portability and
Accountability Act (1996)Electronic Communications Privacy Act
(1986)
What is Management’s role?
Management ties everything togetherResponsibilityOwnership
TechnologyInfrastructure
Organization
Management
Security is a Mindset, not a service. It must be a part of all decisions and implementations.
Business Management
Business Acquisition Questions Are the acquired assets as secure as your company? What are the network integration plans during an
outbreak? Is Security software sufficient
Updated Patched
Emergency segregation of networks
Vulnerability Lifecycle
0-day is a fallacy
Instant Messaging
Confidential Information LeakageBusiness needsPrivacy of employees
Now, what do we do about it?
C.I.A. Security Model Confidentiality Integrity Availability
Current Solutions Antivirus / AntiSpyware Personal Firewall / IDS / IPS User Education
How do these products help?
Host Firewall / IPS blocks many unknown and known threats
How do these products help?
Antivirus Captures Threats that use common access methods Web Downloads Email Application Attacks
(Buffer Overflow)
VBSim demo
Educated Users Help
The biggest threat to the security of a company is not a computer virus, an unpatched hole in a key program or a badly installed firewall. In fact, the biggest threat could be you. What I found personally to be true was that it's easier to manipulate people rather than technology. Most of the time organizations overlook that human element.
Mitnick, Kevin, “How to Hack People.” BBC NewsOnline, October 14, 2002.
How do these products help?
User Education
Don’t open suspicious email
Don’t download software from untrusted sites.
Patch
Things to look for…
Abnormal computer activity Disk access CPU utilization Network activity
Bank Histories Unfamiliar transactions Small but numerous transactions
Audit trails
Open Source
Shared informationBusiness ModelsIs it more secure?
Development model Security reviewers tend to be the same people
doing the proprietary reviews
Value in educationLots of good security tools
Open Source - Browsers
Firefox vs. Internet ExplorerVulnerabilities reported in 2005
Internet Explorer
•SecurityFocus – 43
•Secunia Research – 9
•Symantec - 13
Firefox
•SecurityFocus – 43
•Secunia Research– 17
•Symantec - 21
What about shared vulnerabilities?
Plugins, WMF images
On the Horizon - Microsoft
Targeted because they are Big?
Insecure because they are Big?
Vista Operating System
On the Horizon
Early Detection and Preventative Tools Virus Throttle Active CounterMeasures Principle of Least Authority (PoLA) WAVE Anomaly Detection Viral Patching
On the Horizon
Viral Targets Mobile Phones, PDAs Embedded Operating Systems
Automobiles Sewing Machines Bank Machines Kitchen Appliances
Learn Learn Learn
Authors:Sarah GordonPeter SzorRoger GrimesKris KasperskySearch your library or online
Questions?