“Web Data” is a SQLite database that contains data the user has opted to save for form auto-fill capabilities. On an OS X systems, native password storage systems are used. On Linux systems, this can include password data. The “Login Data” SQLite database is used by Chrome to store saved login data. ![]() Note that the visit_time value is stored in the “seconds since JanuUTC” format used in many Chrome date fields The following section is an excerpt of the results produced by this query: SELECT urls.url, urls.title, urls.visit_count, urls.typed_count, urls.last_visit_time, urls.hidden, visits.visit_time, om_visit Because the id field of the urls table maps to the url field of the visits table, the following SQL query will produce a report of browsing activity : Together, urls and visits tables can be used to construct a good view of user browsing activity. Items of interest include the local path of the saved file, the remote URL, and the time the download was initiated. The downloads table tracks downloaded files, in much the same manner as the Downloads.sqlite database does for Firefox. The “History” SQLite database contains the majority of user activity data of interest, divided among numerous tables. The history syncs across iCloud, so the history may include the history from other Apple devices. The history subdirectory contains the history from Safari. The bookmarks subdirectory contains all the saved bookmarks synced through iCloud. The subdirectory metadata also contains some Safari artifacts of interest. This would allow the investigator to see popular websites visited by the suspect. The web previews are used to generate a grid of popular websites. There is also a subdirectory for website previews. For example, Amazon’s website builds a subdirectory of products and images the user browsed. The contains several directories with potential evidence. The images are stored as JPEG, and they have the first page of the documents created or stored in iCloud. Sessions appears to have images of files stored in iCloud. The cache has a subdirectory called sessions. The caches directory may contain several artifacts of forensic value. This contains the numbers called or received, as well as the numbers unique identification used in CallHistoryDB. ![]() This database is needed with the CallHistoryDB database. However, there are no restrictions on creating databases elsewhere.įigure 7.15. ![]() The SQLite files are generally stored on the internal storage under /data/data//databases. The Android SDK provides dedicated APIs that allow developers to use SQLite databases in their applications. Unlike more traditional relational database management systems (RDBMS), such as Oracle, MySQL, and Microsoft's SQL Server, with SQLite the entire database is contained in a single cross-platform file. The file format and the program itself are very compact and pack significant functionality in less than a few hundred kilobytes. Notably the entire code base is of high quality, open source, and released to the public domain. Databases are used for structured data storage and SQLite is a popular database format appearing in many mobile systems as well as traditional operating systems. Andrew Hoog, in Android Forensics, 2011 SQLiteĪnother NAND/SD card-based storage that developers leverage is a specific type of file-an SQLite database. On IOS, it can apparently be found at /var/mobile/Library/Safari/History.db, or at the backup location e74113c185fd8297e140cfcf9c99436c5cc06b57. On desktop installations, it can be found at the path ~/Library/Safari/History.db (using the Unix convention of using a tilde for a user's home directory). It stores dates as an offset in seconds from midnight UTC, Janu. Versions of the Apple Safari web browser after version 10.10 (2014 ) keep the primary copy of its history in a file called History.db.
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