To uncover web browser activity artifacts for mobile device investigations, follow these steps:
Obtain the mobile device: If you have legal authority, secure the mobile device for investigation. Ensure the device is powered off or in airplane mode to prevent any modifications or remote wiping.
Acquire a forensic image: Create a forensic image of the mobile device using a dedicated forensic tool. This preserves the original content and metadata without altering any evidence.
Analyze the device: Use a mobile forensics tool like Cellebrite, Oxygen Forensic Detective, or Magnet AXIOM to analyze the acquired forensic image. These tools can extract various types of data, including web browser artifacts.
Examine web browser artifacts: Look for the following artifacts related to web browser activity:
a. Cookies: These small files store website data. Analyze cookies to determine user activity on different websites.
b. Browser history: Identify websites visited by examining the browser's history. This may include URLs, timestamps, and other related information.
c. Bookmarks: Explore bookmarked websites to gain insights into the user's preferences and interests.
d. Cached web pages: Analyze cached web pages for evidence of visited websites, including text, images, and other resources.
e. Web search queries: Search for search queries made through the web browser. These can provide clues about the user's intentions and interests.
f. Autofill data: Autofill data can reveal usernames, passwords, and other information entered into web forms.
g. Website session data: Investigate any stored session data, such as login sessions, to determine which websites may have been accessed.
Document and preserve evidence: Ensure that all relevant artifacts and their metadata are properly documented and preserved as evidence. Take screenshots or record videos if necessary.
Interpret the findings: Analyze the web browser artifacts collectively to build a comprehensive picture of the user's web browsing habits, interests, and actions. Look for patterns, connections, or any suspicious activities.
Cross-reference with other evidence: Cross-reference the web browser activity artifacts with other digital evidence, such as call logs, messages, or location data, to corroborate or enhance your investigation findings.
