Computer Security Seminar - Greater Cleveland PC Users Group

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Computer Threats and Safety

Darren J. Mott

Supervisory Special Agent

Cyber Crime Squad

Federal Bureau of Investigation

Cleveland Division

General Outline

General Security

Current Cyber Threats

Threats to Children

Common Scams

How to report a Cyber Crime

Social Networks

How to conduct general forensics on your computer

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

General Security

The operating system on PCs (XP/VISTA) are generally insecure out of the box.

MAC users are generally safer than PC users, but as

MACs gain in popularity, more exploits are showing up.

Do not depend on the Microsoft Firewall to provide much protection

You should always have a third party security program running on your system.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Myth

“I have an anti-virus program, my computer is safe.”

•AV products only protect against computer viruses. There are FAR more vulnerabilities that just viruses.

•AV products ONLY protect against less that 40% of known viruses.

•AV products don’t protect you until AFTER the virus is released.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Myth

“My computer is behind a router, I am safe.”

•While being behind a router is a good idea and your PC is better hidden, it is not an end-all protection scheme

•Routers should be secured also

•Wireless Routers MUST be secured.

WPA security protocol and/or MAC address restriction

Be careful connecting to unsecured wireless networks. Your traffic can be monitored.

Unless you have to, do not broadcast the network SSID.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Myth

I don’t run a Windows Operating System, I don’t need to worry.

• Linux and Mac users are generally safer from infection by viruses, but not free from exploitation of known vulnerabilities.

•Most computers are Windows based, so bad guys are going to spend more time attacking that system.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Current Cyber Threats

Modern malware is passed along by a variety of methods.

•Email – attachments

•Websites

•Software (especially pirated software)

•P2P networks

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Viruses

Worms

Wabbits

Trojans

Spyware

Backdoors

Types of Malware

Exploits

Rootkit

Keyloggers

Dialers

URL Injectors

Adware

Current Cyber Crime Trends

Covert delivery of Malicious code

Use of malware to steal personal information

Use of this information to steal & manipulate financial information

Targeting of smaller banks, school districts, churches and CFOs

Organized groups arising to coordinate attacks

Use of wireless networks to steal data

Insider crime continues to be a problem

Terrorism

Espionage

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

General Protection TIPS

NEVER open an attachment from someone you don’t know. If you get an attachment from someone you do know but there is no text indicating what it is, be suspicious.

Use security software to restrict sites.

Make your kids aware that they AREN’T really getting free stuff from emails.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Common Scams

Nigerian Email

Work at home

Western Union money transfer professional

Phishing/Vishing

Auction Fraud

Lotteries

Reshipping

More details at www.ic3.gov

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Online Transactions

If used on well-known sites it is generally a safe transaction. Look for the lock in the lower right corner of the browser or in the address bar the an

“https”. This creates a secure encrypted connection between you and the vendor.

Most theft occurs on the companies’ backend not during the transaction itself.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

How to report a crime

Depending on the type of crime experience you should contact local police, the FBI and at the very least www.ic3.gov

.

Unless you work for a company that is the victim of a computer intrusion you will be unlikely to find resolution in the Federal System. Civil remedies are generally more effective.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

How do I know if my

computer is compromised

Depending on the malware, you may not know.

Is your computer really sluggish or slow? Then maybe.

Educate yourself on self-diagnosis. Google is your friend.

External data storage.

Re-install OS periodically.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Your Kids & Computer Accounts

Give them their own login and do NOT make it an administrator account. This will restrict them from installing programs.

You can use third party to applications to restrict sites

(Cybersitter, Safe Eyes, Internet, Net Nanny etc..) but don’t expect everything to be filtered.

Not 100% protection, but better than nothing .

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Threats to Children

Highly targeted by pedophiles online, especially because of the explosion of social networks (MySpace,

Facebook etc…)

Check your computer for IRC, AIM, YAHOO messenger, ICQ or any other IM programs. These are gateway programs for problems (watch a single episode of NBC’s To Catch a Predator for proof).

Social Networks (Risks to everyone)

Keep your computer in a common area.

Tell your kids you are logging all their activity – even if you aren’t (Google – “keyloggers for parents”)

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Social Networks

Massive adoption in the consumer market

•MySpace, Facebook, LinkedIn, Friendster, Twitter

•Statistics on Facebook

Over 500,000,000 users (fall 2010)

Over 250,000 new registrations per day

Over 200,000 developers have submitted some sort of

Facebook application using basic programming skills and there are over 350,000 official apps

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Social Networking & Crime

Authorities say the web is largely to blame for a 16 percent increase in rapes this year.

“In the past, rapists would have to hunt and stalk…now all you have to do is get on the internet and she’s waiting for you in a hotel room”.

Sgt. Darrell Price, Charlotte- Mecklenburg PD, Sexual Assault Unit as quoted in “American Police Beat”, September 2009.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Ideal Exploitation Platform

Social networks have intrinsic properties that make them ideal to be exploited by an adversary:

•Difficult to police: very large and distributed user base

•Trust network: clusters of users sharing the same social interests developing trust with each other

•Platform openness for developing applications that are attractive the general users who will install them

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Too Much Info

The SN value proposition is information sharing

•“Linked In” - defaults for outsider access is not bad

•“Facebook” - defaults very open

•“Twitter” - no expectation of privacy anyway

Try this: go to your Facebook account and search for:

•<any company name in your city or area> and “Software” or “Technology”

•From the list of results click until you find one that has all their profile information visible... there are usually many!

•Can lead to guessed passwords or recovery questions

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

As an example

It took seriously 45 mins on wikipedia & google to find the info,

Birthday ? 15 seconds on wikipedia, zip code ? well she had always been from wasilla, & it only has 2 zip codes (thanks online postal service!) the second was somewhat harder, the question was “ where did you meet your spouse?”

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

WAY Too Much Information

(or compromised account)

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

General Forencics

Run>>cmd

Netstat

Samspade.org

Maxmind.com

Domaintools.com

Dnsstuff.com

Grc.com

– Shields up

If you are not comfortable regarding these steps, find a computer savvy friend.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Vigilance is the key.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Computer Security Issues Mailing List

I keep a personal mailing list that I send out security issues from time to time (latest scams, new viruses, etc..)

If you want me to add you, send an email to darren.mott@gmail.com

.

If you think of a question I did not answer here, feel free to contact me.

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

Thank you

SSA Darren J. Mott

216-622-6916 darren.mott@ic.fbi.gov

Darren Mott’s presentation to Greater Cleveland PC Users Group www.gcpcug.org – 01/08/11

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