Difference between pages "Upcoming events" and "Google Chrome"

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<b>PLEASE READ BEFORE YOU EDIT THE LISTS BELOW</b><br>
+
Google Chrome is a [[Web Browser|web browser]] developed by Google Inc.
When events begin the same day, events of a longer length should be listed first. New postings of events with the same date(s) as other events should be added after events already in the list. Please use three-letter month abbreviations (i.e. Sep, NOT Sept. or September), use two digit dates (i.e. Jan 01 NOT Jan 1), and use date ranges rather than listing every date during an event(i.e. Jan 02-05, NOT Jan 02, 03, 04, 05).<br>
+
<i>Some events may be <u>limited</u> to <b>Law Enforcement Only</b> or to a specific audience.  Such restrictions should be noted when known.</i>
+
  
This is a BY DATE listing of upcoming events relevant to [[digital forensics]].  It is not an all inclusive list, but includes most well-known activities.  Some events may duplicate events on the generic [[conferences]] page, but entries in this list have specific dates and locations for the upcoming event.
+
== Configuration ==
 +
The Google Chrome configuration can be found in the '''Preferences''' file.
  
This listing is divided into three sections (described as follows):<br>
+
On Linux
<ol><li><b><u>[[Upcoming_events#Calls_For_Papers|Calls For Papers]]</u></b> - Calls for papers for either Journals or for Conferences, relevant to Digital Forensics (Name, Closing Date, URL)</li><br>
+
<pre>
<li><b><u>[[Upcoming_events#Conferences|Conferences]]</u></b> - Conferences relevant for Digital Forensics (Name, Date, Location, URL)</li><br>
+
/home/$USER/.config/google-chrome/Default/Preferences
<li><b><u>[[Training Courses and Providers]]</u></b> - Training </li><br></ol>
+
</pre>
  
== Calls For Papers ==
+
On MacOS-X
Please help us keep this up-to-date with deadlines for upcoming conferences that would be appropriate for forensic research.
+
<pre>
 +
/Users/$USER/Library/Application Support/Google/Chrome/Default/Preferences
 +
</pre>
  
{| border="0" cellpadding="2" cellspacing="2" align="top"
+
On Windows XP
|- style="background:#bfbfbf; font-weight: bold"
+
<pre>
! width="30%|Title
+
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Chrome\User Data\Default\Preferences
! width="15%"|Due Date
+
</pre>
! width="15%"|Notification Date
+
! width="40%"|Website
+
|-
+
|6th International Conference on Digital Forensics & Cyber Crime
+
|May 16, 2014
+
|Jul 30, 2014
+
|http://d-forensics.org/2014/show/cf-calls
+
|-
+
|2014 Annual Computer Security Applications Conference
+
|Jun 01, 2014
+
|Aug 15, 2014
+
|http://www.acsac.org/2014/cfp/papers/
+
|-
+
|Open Source Digital Forensics Conference
+
|Jun 01, 2014
+
|
+
|http://www.basistech.com/osdfcon/cfp/
+
|-
+
|67th Annual Scientific Meeting of the American Academy of Forensic Sciences
+
|Aug 01, 2014
+
|Nov 01, 2014
+
|http://www.aafs.org
+
|-
+
|Eleventh Annual IFIP WG 11.9 International Conference on Digital Forensics
+
|Oct 01, 2014
+
|Nov 15, 2014
+
|http://www.ifip119.org
+
|-
+
|}
+
  
See also [http://www.wikicfp.com/cfp/servlet/tool.search?q=forensics WikiCFP 'Forensics']
+
On Windows Vista and later
 +
<pre>
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\Default\Preferences
 +
</pre>
  
== Conferences ==
+
Or for '''Chrome SxS''' (Chrome side-by-side)
{| border="0" cellpadding="2" cellspacing="2" align="top"
+
|- style="background:#bfbfbf; font-weight: bold"
+
! width="40%"|Title
+
! width="20%"|Date/Location
+
! width="40%"|Website
+
|-
+
|8th International Conference on IT Security Incident Management & IT Forensics
+
|May 12-14<br>Muenster, Germany
+
|http://www1.gi-ev.de/fachbereiche/sicherheit/fg/sidar/imf/imf2014/
+
|-
+
|2014 IEEE Symposium on Security and Privacy
+
|May 16-23<br>Berkley, CA, USA
+
|http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=16517
+
|-
+
|9th ADFSL Conference on Digital Forensics, Security and Law
+
|May 28-29<br>Richmond, VA
+
|http://www.digitalforensics-conference.org/
+
|-
+
|Techno-Security and Forensics Conference
+
|Jun 01-04<br>Myrtle Beach, SC, USA
+
|http://www.techsec.com/html/Security%20Conference%202014.html
+
|-
+
|Mobile Forensics World
+
|Jun 01-04<br>Myrtle Beach, SC, USA
+
|http://www.techsec.com/html/MFC-2014-Spring.html
+
|-
+
|12th International Conference on Applied Cryptography and Network Security
+
|Jun 10-13<br>Lausanne, Switzerland
+
|http://acns2014.epfl.ch/
+
|-
+
|2nd ACM Workshop on Information Hiding and Multimedia Security
+
|Jun 11-13<br>Salzburg, Austria
+
|http://www.ihmmsec.org/
+
|-
+
|54th Conference on Audio Forensics
+
|Jun 12-14<br>London, England
+
|http://www.aes.org/conferences/54/
+
|-
+
|Cyber and NetCentric Workshop (Requires US Security Clearance)
+
|Jun 17-19<br>Lincoln Laboratories, Lexington, MA
+
|https://conferences.ll.mit.edu/cnw/
+
|-
+
|2014 USENIX Annual Technical Conference
+
|Jun 19-20<br>Philadelphia, PA, USA
+
|https://www.usenix.org/conference/atc14
+
|-
+
|26th Annual FIRST Conference: Back to the ‘root’ of Incident Response
+
|Jun 22-27<br>Boston, MA
+
|http://www.first.org/conference/2014
+
|-
+
|44th Annual IEEE/IFIP International Conference on Dependable Systems and Networks
+
|Jun 23-26<br>Atlanta, GA, USA
+
|http://www.dsn.org/
+
|-
+
|Symposium On Usable Privacy and Security (SOUPS) 2014
+
|Jul 09-11<br>Menlo Park, CA, USA
+
|http://cups.cs.cmu.edu/soups/2014/
+
|-
+
|11th Conference on Detection of Intrusions and Malware & Vulnerability Assessment
+
|July 10-11<br>Egham, UK
+
|http://dimva2014.isg.rhul.ac.uk/
+
|-
+
|Black Hat USA 2014
+
|Aug 02-07<br>Las Vegas, NV, USA
+
|https://www.blackhat.com
+
|-
+
|DFRWS 2014
+
|Aug 03-06<br>Denver, CO, USA
+
|http://dfrws.org/2014/index.shtml
+
|-
+
|RCFG GMU 2014
+
|Aug 04-08<br>Fairfax, VA, USA
+
|http://www.rcfg.org/gmu/
+
|-
+
|23rd USENIX Security Symposium
+
|Aug 20-22<br>San Diego, CA, USA
+
|https://www.usenix.org/conferences
+
|-
+
|2014 HTCIA International Conference & Training Expo
+
|Aug 25-27<br>Austin, TX
+
|http://www.htcia.org/2013/11/2014-htcia-international-conference-training-expo/
+
|-
+
|International Conference on Availability, Reliability and Security (ARES)
+
|Sep 08-12<br>Fribourg, Switzerland
+
|http://www.ares-conference.eu/conference/
+
|-
+
|The New Security Paradigms Workshop (NSPW)
+
|Sep 15-18<br>Victoria, British Columbia, Canada
+
|http://www.nspw.org/2014
+
|-
+
|6th International Conference on Digital Forensics & Cyber Crime co-hosted with the Systematic Approaches to Digital Forensic Engineering (SADFE)
+
|Sep 18-20<br>New Haven, CT
+
|http://d-forensics.org/2014/show/home
+
|-
+
|17th International Symposium on Research in Attacks, Intrusions and Defenses (RAID)
+
|Sep 24-26<br>Gothenburg, Sweden
+
|http://www.raid2014.eu/
+
|-
+
|24th Virus Bulletin International Conference
+
|Sep 24-26<br>Seattle, WA
+
|http://www.virusbtn.com/conference/vb2014/index
+
|-
+
|25th Annual Conference & Digital Multimedia Evidence Training Symposium
+
|Oct 06-10<br>Coeur d’Alene, ID, USA
+
|http://www.leva.org/annual-training-conference/
+
|-
+
|5th Annual Open Source Digital Forensics Conference (OSDFCon)
+
|Nov 05<br>Herndon, VA
+
|http://www.basistech.com/osdfcon/
+
|-
+
|CyberCrime and Electronic Discovery Symposium 2014
+
|Nov 5-7<br>Baton Rouge, Louisiana
+
|http://www.ceds2014.com
+
|-
+
|2014 Annual Computer Security Applications Conference (ACSAC)
+
|Dec 08-12<br>New Orleans, LA
+
|http://www.acsac.org/
+
|-
+
|Eleventh Annual IFIP WG 11.9 International Conference on Digital Forensics
+
|Jan 26-28<br>Orlando, FL
+
|http://www.ifip119.org
+
|-
+
|67th Annual Scientific Meeting of the American Academy of Forensic Sciences
+
|Feb 16-25<br>Orlando, FL
+
|http://www.aafs.org
+
|-
+
|}
+
  
==See Also==
+
<pre>
* [[Training Courses and Providers]]
+
C:\Users\%USERNAME%\AppData\Local\Google\Chrome SxS\User Data\Default\Preferences
==References==
+
</pre>
* [http://faculty.cs.tamu.edu/guofei/sec_conf_stat.htm Computer Security Conference Ranking and Statistic]
+
 
* [http://www.kdnuggets.com/meetings/ Meetings and Conferences in Data Mining and Discovery]
+
Or for '''Chromium'''
* http://www.conferencealerts.com/data.htm Data Mining Conferences World-Wide]
+
 
 +
On Linux
 +
<pre>
 +
/home/$USER/.config/chromium/Default/Preferences
 +
</pre>
 +
 
 +
On MacOS-X
 +
<pre>
 +
/Users/$USER/Library/Application Support/Chromium/Default/Preferences
 +
</pre>
 +
 
 +
On Windows XP
 +
<pre>
 +
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Chromium\User Data\Default\Preferences
 +
</pre>
 +
 
 +
On Windows Vista and later
 +
<pre>
 +
C:\Users\%USERNAME%\AppData\Local\Chromium\User Data\Default\Preferences
 +
</pre>
 +
 
 +
=== Plugins ===
 +
 
 +
Information about plugins can be found under the "plugins section" of the Preferences file.
 +
 
 +
=== DNS Prefetching ===
 +
 
 +
DNS is prefetched for related sites, e.g. links on the page.
 +
This behavior is controlled by the setting "Predict network actions to improve page load performance", which is enabled by default.
 +
 
 +
If enabled the Preferences file contains:
 +
<pre>
 +
  "dns_prefetching": {
 +
      "enabled": true,
 +
</pre>
 +
 
 +
If disabled the Preferences file contains:
 +
<pre>
 +
  "dns_prefetching": {
 +
      "enabled": false,
 +
</pre>
 +
 
 +
== Start-up DNS queries ==
 +
 
 +
When Chrome starts it queries for several non-existing hostnames that consists of a 10 random characters, E.g.
 +
<pre>
 +
ttrgoiknff.mydomain.com
 +
bxjhgftsyu.mydomain.com
 +
yokjbjiagd.mydomain.com
 +
</pre>
 +
 
 +
This is used to determine if your ISP is hijacking NXDOMAIN results [http://www.google.com/support/forum/p/Chrome/thread?tid=3511015c72a7b314&hl=en].
 +
 
 +
== Disk Cache ==
 +
Google Chrome uses multiple caches, from [http://src.chromium.org/viewvc/chrome/trunk/src/net/base/cache_type.h?view=markup]:
 +
<pre>
 +
// The types of caches that can be created.
 +
enum CacheType {
 +
    DISK_CACHE,  // Disk is used as the backing storage.
 +
    MEMORY_CACHE,  // Data is stored only in memory.
 +
    MEDIA_CACHE,  // Optimized to handle media files.
 +
    APP_CACHE,  // Backing store for an AppCache.
 +
    SHADER_CACHE, // Backing store for the GL shader cache.
 +
    PNACL_CACHE, // Backing store the PNaCl translation cache
 +
};
 +
</pre>
 +
 
 +
<b>Note that $PROFILE (or %PROFILE%) the paths below is the profile dependent subdirectory which is normally Default but also could be Profile1, Profile2, etc.</b>
 +
 
 +
The Google Chrome disk cache can be found in:
 +
 
 +
On Linux
 +
 
 +
<pre>
 +
/home/$USER/.cache/chromium/$PROFILE/Cache/
 +
/home/$USER/.cache/google-chrome/$PROFILE/Cache/
 +
/home/$USER/.config/chromium/$PROFILE/Cache/
 +
/home/$USER/.config/google-chrome/$PROFILE/Cache/
 +
</pre>
 +
 
 +
<pre>
 +
/home/$USER/.cache/chromium/$PROFILE/Media Cache/
 +
/home/$USER/.cache/google-chrome/$PROFILE/Media Cache/
 +
/home/$USER/.config/chromium/$PROFILE/Media Cache/
 +
/home/$USER/.config/google-chrome/$PROFILE/Media Cache/
 +
</pre>
 +
 
 +
<pre>
 +
/home/$USER/.config/chromium/$PROFILE/Application Cache/Cache/
 +
/home/$USER/.config/google-chrome/$PROFILE/Application Cache/Cache/
 +
</pre>
 +
 
 +
<pre>
 +
/home/$USER/.config/chromium/$PROFILE/GPUCache/
 +
/home/$USER/.config/google-chrome/$PROFILE/GPUCache/
 +
</pre>
 +
 
 +
<pre>
 +
/home/$USER/.cache/chromium/PnaclTranslationCache/
 +
/home/$USER/.cache/google-chrome/PnaclTranslationCache/
 +
</pre>
 +
 
 +
On MacOS-X
 +
<pre>
 +
/Users/$USER/Library/Caches/Chromium/$PROFILE/Cache
 +
/Users/$USER/Library/Caches/Google/Chrome/$PROFILE/Cache
 +
</pre>
 +
 
 +
<b>TODO confirm the following paths</b>
 +
<pre>
 +
/Users/$USER/Caches/Chromium/$PROFILE/Cache/
 +
/Users/$USER/Caches/Google/Chrome/$PROFILE/Cache/
 +
</pre>
 +
 
 +
<pre>
 +
/Users/$USER/Library/Caches/Chromium/$PROFILE/Media Cache
 +
/Users/$USER/Library/Caches/Google/Chrome/$PROFILE/Media Cache
 +
</pre>
 +
 
 +
<pre>
 +
/Users/$USER/Library/Application Support/Chromium/$PROFILE/Application Cache/Cache/
 +
/Users/$USER/Library/Application Support/Google/Chrome/$PROFILE/Application Cache/Cache/
 +
</pre>
 +
 
 +
<pre>
 +
/Users/$USER/Library/Application Support/Chromium/$PROFILE/GPUCache/
 +
/Users/$USER/Library/Application Support/Google/Chrome/$PROFILE/GPUCache/
 +
</pre>
 +
 
 +
<pre>
 +
/Users/$USER/Library/Caches/Chromium/PnaclTranslationCache/
 +
/Users/$USER/Library/Caches/Google/Chrome/PnaclTranslationCache/
 +
</pre>
 +
 
 +
On Windows XP
 +
 
 +
<b>TODO confirm the following paths</b>
 +
<pre>
 +
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Chromium\User Data\Cache\
 +
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Chrome\User Data\Cache\
 +
</pre>
 +
 
 +
On Windows Vista and later
 +
<pre>
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\Cache\
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\Cache\
 +
</pre>
 +
 
 +
<pre>
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\Application Cache\Cache\
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\Application Cache\Cache\
 +
</pre>
 +
 
 +
<pre>
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\Media Cache\
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\Media Cache\
 +
</pre>
 +
 
 +
<pre>
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\GPUCache\
 +
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\GPUCache\
 +
</pre>
 +
 
 +
The Chrome Cache contains different files with the following file names:
 +
* index
 +
* data_#; where # contains a decimal digit.
 +
* f_######; where # contains a hexadecimal digit.
 +
 
 +
For more info see [[Chrome Disk Cache Format]].
 +
 
 +
== History ==
 +
Chrome stores the history of visited sites in a file named '''History'''. This file uses the [[SQLite database format]].
 +
 
 +
The '''History''' file can be found in same location as the '''Preferences''' file.
 +
 
 +
There is also '''Archived History''' that predates information in the '''History''' file.
 +
Note that the '''Archived History''' only contains visits.
 +
 
 +
=== Timestamps ===
 +
The '''History''' file uses the different timestamps.
 +
 
 +
==== visits.visit_time ====
 +
 
 +
The '''visits.visit_time''' is in (the number of) microseconds since January 1, 1601 UTC
 +
 
 +
Some Python code to do the conversion into human readable format:
 +
<pre>
 +
date_string = datetime.datetime( 1601, 1, 1 )
 +
            + datetime.timedelta( microseconds=timestamp )
 +
</pre>
 +
 
 +
Note that this timestamp is not the same as a Windows filetime which is (the number of) 100 nanoseconds since January 1, 1601 UTC
 +
 
 +
==== downloads.start_time ====
 +
 
 +
The '''downloads.start_time''' is in (the number of) seconds since January 1, 1970 UTC
 +
 
 +
Some Python code to do the conversion into human readable format:
 +
<pre>
 +
date_string = datetime.datetime( 1970, 1, 1 )
 +
            + datetime.timedelta( seconds=timestamp )
 +
</pre>
 +
 
 +
=== Example queries ===
 +
Some example queries:
 +
 
 +
To get an overview of the visited sites:
 +
<pre>
 +
SELECT datetime(((visits.visit_time/1000000)-11644473600), "unixepoch"), urls.url, urls.title FROM urls, visits WHERE urls.id = visits.url;
 +
</pre>
 +
 
 +
Note that the visit_time conversion looses precision.
 +
 
 +
To get an overview of the downloaded files:
 +
<pre>
 +
SELECT datetime(downloads.start_time, "unixepoch"), downloads.url, downloads.full_path, downloads.received_bytes, downloads.total_bytes FROM downloads;
 +
</pre>
 +
 
 +
How the information of the downloaded files is stored in the database can vary per version of Chrome as of version 26:
 +
<pre>
 +
SELECT datetime(((downloads.start_time/1000000)-11644473600), "unixepoch"), downloads.target_path, downloads_url_chains.url, downloads.received_bytes, downloads.total_bytes \
 +
FROM downloads, downloads_url_chains WHERE downloads.id = downloads_url_chains.id;
 +
</pre>
 +
 
 +
== Cookies ==
 +
Chrome stores the cookies in a file named '''Cookies'''. This file uses the [[SQLite database format]].
 +
 
 +
=== Extension Cookies ===
 +
Chrome stores the cookies used by extensions in a file named '''Extension Cookies'''. This file uses the [[SQLite database format]].
 +
 
 +
<pre>
 +
SELECT datetime(((cookies.creation_utc/1000000)-11644473600), "unixepoch"), cookies.host_key, cookies.name, cookies.value, cookies.path, \
 +
datetime(((cookies.expires_utc/1000000)-11644473600), "unixepoch"), cookies.secure, cookies.httponly, datetime(((cookies.last_access_utc/1000000)-11644473600), "unixepoch"), \
 +
cookies.has_expires, cookies.persistent, cookies.priority FROM cookies;
 +
</pre>
 +
 
 +
== See Also ==
 +
 
 +
* [[SQLite database format]]
 +
 
 +
== External Links ==
 +
* [http://en.wikipedia.org/wiki/Google_Chrome Wikipedia article on Google Chrome]
 +
* [http://www.chromium.org/user-experience/user-data-directory The Chromium Projects - User Data Directory]
 +
* [http://www.chromium.org/developers/design-documents/network-stack/disk-cache Chrome Disk Cache]
 +
* [http://www.google.com/support/forum/p/Chrome/thread?tid=3511015c72a7b314&hl=en Chrome support forum article random 10 character hostnames on startup]
 +
* [http://www.useragentstring.com/pages/Chrome/ Chrome User Agent strings]
 +
* [http://computer-forensics.sans.org/blog/2010/01/21/google-chrome-forensics/ Google Chrome Forensics] by [[Kristinn Guðjónsson]], January 21, 2010
 +
* [http://linuxsleuthing.blogspot.ch/2013/02/cashing-in-on-google-chrome-cache.html?m=1 Cashing in on the Google Chrome Cache], [[John Lehr]], February 24, 2013
 +
* [http://www.obsidianforensics.com/blog/history-index-files-removed-from-chrome/ History Index files removed from Chrome v30], by Ryan Benson, October 2, 2013
 +
* [https://hindsight-internet-history.googlecode.com/files/Evolution_of_Chrome_Databases.png Evolution of Chrome Databases], by Ryan Benson, November 12, 2013
 +
 
 +
== Tools ==
 +
=== Open Source ===
 +
* [https://code.google.com/p/hindsight-internet-history/ hindsight-internet-history]
 +
 
 +
[[Category:Applications]]
 +
[[Category:Web Browsers]]

Revision as of 04:42, 22 June 2014

Google Chrome is a web browser developed by Google Inc.

Configuration

The Google Chrome configuration can be found in the Preferences file.

On Linux

/home/$USER/.config/google-chrome/Default/Preferences

On MacOS-X

/Users/$USER/Library/Application Support/Google/Chrome/Default/Preferences

On Windows XP

C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Chrome\User Data\Default\Preferences

On Windows Vista and later

C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\Default\Preferences

Or for Chrome SxS (Chrome side-by-side)

C:\Users\%USERNAME%\AppData\Local\Google\Chrome SxS\User Data\Default\Preferences

Or for Chromium

On Linux

/home/$USER/.config/chromium/Default/Preferences

On MacOS-X

/Users/$USER/Library/Application Support/Chromium/Default/Preferences

On Windows XP

C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Chromium\User Data\Default\Preferences

On Windows Vista and later

C:\Users\%USERNAME%\AppData\Local\Chromium\User Data\Default\Preferences

Plugins

Information about plugins can be found under the "plugins section" of the Preferences file.

DNS Prefetching

DNS is prefetched for related sites, e.g. links on the page. This behavior is controlled by the setting "Predict network actions to improve page load performance", which is enabled by default.

If enabled the Preferences file contains:

   "dns_prefetching": {
      "enabled": true,

If disabled the Preferences file contains:

   "dns_prefetching": {
      "enabled": false,

Start-up DNS queries

When Chrome starts it queries for several non-existing hostnames that consists of a 10 random characters, E.g.

ttrgoiknff.mydomain.com
bxjhgftsyu.mydomain.com
yokjbjiagd.mydomain.com

This is used to determine if your ISP is hijacking NXDOMAIN results [1].

Disk Cache

Google Chrome uses multiple caches, from [2]:

// The types of caches that can be created.
enum CacheType {
    DISK_CACHE,  // Disk is used as the backing storage.
    MEMORY_CACHE,  // Data is stored only in memory.
    MEDIA_CACHE,  // Optimized to handle media files.
    APP_CACHE,  // Backing store for an AppCache.
    SHADER_CACHE, // Backing store for the GL shader cache.
    PNACL_CACHE, // Backing store the PNaCl translation cache
};

Note that $PROFILE (or %PROFILE%) the paths below is the profile dependent subdirectory which is normally Default but also could be Profile1, Profile2, etc.

The Google Chrome disk cache can be found in:

On Linux

/home/$USER/.cache/chromium/$PROFILE/Cache/
/home/$USER/.cache/google-chrome/$PROFILE/Cache/
/home/$USER/.config/chromium/$PROFILE/Cache/
/home/$USER/.config/google-chrome/$PROFILE/Cache/
/home/$USER/.cache/chromium/$PROFILE/Media Cache/
/home/$USER/.cache/google-chrome/$PROFILE/Media Cache/
/home/$USER/.config/chromium/$PROFILE/Media Cache/
/home/$USER/.config/google-chrome/$PROFILE/Media Cache/
/home/$USER/.config/chromium/$PROFILE/Application Cache/Cache/
/home/$USER/.config/google-chrome/$PROFILE/Application Cache/Cache/
/home/$USER/.config/chromium/$PROFILE/GPUCache/
/home/$USER/.config/google-chrome/$PROFILE/GPUCache/
/home/$USER/.cache/chromium/PnaclTranslationCache/
/home/$USER/.cache/google-chrome/PnaclTranslationCache/

On MacOS-X

/Users/$USER/Library/Caches/Chromium/$PROFILE/Cache
/Users/$USER/Library/Caches/Google/Chrome/$PROFILE/Cache

TODO confirm the following paths

/Users/$USER/Caches/Chromium/$PROFILE/Cache/
/Users/$USER/Caches/Google/Chrome/$PROFILE/Cache/
/Users/$USER/Library/Caches/Chromium/$PROFILE/Media Cache
/Users/$USER/Library/Caches/Google/Chrome/$PROFILE/Media Cache
/Users/$USER/Library/Application Support/Chromium/$PROFILE/Application Cache/Cache/
/Users/$USER/Library/Application Support/Google/Chrome/$PROFILE/Application Cache/Cache/
/Users/$USER/Library/Application Support/Chromium/$PROFILE/GPUCache/
/Users/$USER/Library/Application Support/Google/Chrome/$PROFILE/GPUCache/
/Users/$USER/Library/Caches/Chromium/PnaclTranslationCache/
/Users/$USER/Library/Caches/Google/Chrome/PnaclTranslationCache/

On Windows XP

TODO confirm the following paths

C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Chromium\User Data\Cache\
C:\Documents and Settings\%USERNAME%\Local Settings\Application Data\Google\Chrome\User Data\Cache\

On Windows Vista and later

C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\Cache\
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\Cache\
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\Application Cache\Cache\
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\Application Cache\Cache\
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\Media Cache\
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\Media Cache\
C:\Users\%USERNAME%\AppData\Local\Google\Chromium\%PROFILE%\GPUCache\
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\%PROFILE%\GPUCache\

The Chrome Cache contains different files with the following file names:

  • index
  • data_#; where # contains a decimal digit.
  • f_######; where # contains a hexadecimal digit.

For more info see Chrome Disk Cache Format.

History

Chrome stores the history of visited sites in a file named History. This file uses the SQLite database format.

The History file can be found in same location as the Preferences file.

There is also Archived History that predates information in the History file. Note that the Archived History only contains visits.

Timestamps

The History file uses the different timestamps.

visits.visit_time

The visits.visit_time is in (the number of) microseconds since January 1, 1601 UTC

Some Python code to do the conversion into human readable format:

date_string = datetime.datetime( 1601, 1, 1 )
            + datetime.timedelta( microseconds=timestamp )

Note that this timestamp is not the same as a Windows filetime which is (the number of) 100 nanoseconds since January 1, 1601 UTC

downloads.start_time

The downloads.start_time is in (the number of) seconds since January 1, 1970 UTC

Some Python code to do the conversion into human readable format:

date_string = datetime.datetime( 1970, 1, 1 )
            + datetime.timedelta( seconds=timestamp )

Example queries

Some example queries:

To get an overview of the visited sites:

SELECT datetime(((visits.visit_time/1000000)-11644473600), "unixepoch"), urls.url, urls.title FROM urls, visits WHERE urls.id = visits.url;

Note that the visit_time conversion looses precision.

To get an overview of the downloaded files:

SELECT datetime(downloads.start_time, "unixepoch"), downloads.url, downloads.full_path, downloads.received_bytes, downloads.total_bytes FROM downloads;

How the information of the downloaded files is stored in the database can vary per version of Chrome as of version 26:

SELECT datetime(((downloads.start_time/1000000)-11644473600), "unixepoch"), downloads.target_path, downloads_url_chains.url, downloads.received_bytes, downloads.total_bytes \
FROM downloads, downloads_url_chains WHERE downloads.id = downloads_url_chains.id;

Cookies

Chrome stores the cookies in a file named Cookies. This file uses the SQLite database format.

Extension Cookies

Chrome stores the cookies used by extensions in a file named Extension Cookies. This file uses the SQLite database format.

SELECT datetime(((cookies.creation_utc/1000000)-11644473600), "unixepoch"), cookies.host_key, cookies.name, cookies.value, cookies.path, \
datetime(((cookies.expires_utc/1000000)-11644473600), "unixepoch"), cookies.secure, cookies.httponly, datetime(((cookies.last_access_utc/1000000)-11644473600), "unixepoch"), \
cookies.has_expires, cookies.persistent, cookies.priority FROM cookies;

See Also

External Links

Tools

Open Source