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Forensic Investigation Process. Presented by Dave Maupin Security Management Partners Waltham, MA www.smpone.com. Your Speaker : Dave Maupin, CISA, CRISC, CISSP, and EnCE. MIT graduate with 30 years of experience in IT - PowerPoint PPT Presentation
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FORENSIC INVESTIGATIONPROCESS
PRESENTED BYDAVE MAUPIN
SECURITY MANAGEMENT PARTNERSWALTHAM, MA
WWW.SMPONE.COM
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Your Speaker: Dave Maupin, CISA, CRISC, CISSP, and EnCE
MIT graduate with 30 years of experience in IT Senior Information Security Consultant for Security
Management Partners. PCI QSA Forensic investigations with IT, HR and Legal
departments for various regulated industries such as banking, healthcare and pharmaceutical.
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Common investigation scenarios
ACH fraud Embezzlement Harassment Civil case
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Tools1. Encase Forensic 7.072. Antivirus software3. Malwarebytes4. Excel5. Volatility6. HBGary Responder CE7. Mandiant Redline8. Knowledge of Windows technical details
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ACH Fraud Funds moved electronically from business
online banking account Investigate—initial information gathering
from the financial institution and the business customer
Acquire media using chain of custody protocol
Forensic analysis—acquire forensically and run analysis
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Timeline AnalysisEntry Date Entry Full Path Entry Type 08/24/10 11:29:11AM C\WINDOWS\Prefetch\WINZIP32.EXE-2F3C90C9.pf Created Date08/24/10 11:29:11AM C\WINDOWS\Prefetch\WINZIP32.EXE-2F3C90C9.pf Written Date08/24/10 11:29:11AM C\WINDOWS\Prefetch\WINZIP32.EXE-2F3C90C9.pf Modified Date
08/24/10 11:29:16AM
C\Documents and Settings \User.Domain\Cookies\[email protected][2].txt Accessed Date
800 entries for cookies on the system
08/24/10 11:29:21AM
C\Documents and Settings \User.Domain\Cookies\[email protected][2].txt Accessed Date
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Embezzlement Funds stolen from business Investigate—initial information gathering
from the business Acquire media using chain of custody
protocol Forensic analysis—acquire forensically
and run analysis
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Data Hiding Changing the extension on a file. Embedding data in a graphic file or scanning a
document so that it becomes a graphic file. This would prevent the text within the document from being identified during a keyword search.
Using a compression utility to compress multiple files or documents into a single compound file (i.e. .zip file).
Encryption: using a utility such as TrueCrypt to create a hidden\encrypted volume on the hard drive.
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Civil Case Intellectual property stolen from business Investigate—initial information gathering
from the business Acquire media using chain of custody
protocol Forensic analysis—acquire forensically
and run analysis
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Shortcuts (.lnk files) Shortcuts contain a volume serial number In order for these Link files to have been
created on the hard drive, the USB drive had to have been plugged into the computer containing the hard drive on which the Link files were located and a file from the USB drive had to have been accessed from that computer.
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Harassment Employee reports harassment to HR Investigate—initial information gathering
from the business Acquire media using chain of custody
protocol Forensic analysis—acquire forensically
and run analysis
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System Restore System Restore uses a feature called
system protection to regularly create and save restore points on your computer. These restore points contain information about registry settings and other system information that Windows uses.
People trying to hide their activities may not realize that information has been saved by System Restore
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Best Practices A/V definitions change daily, full scans
should be run at least weekly Investigate what your a/v console reports Investigate unusual events:
Account lockouts Use a minimum necessary approach
throughout your environment: Block outbound traffic Only give access to social media to those with
a business need (marketing) Block webmail access
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Best Practices, continued Train your users
Call the help desk Be careful with email attachments