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Old 11-08-2015, 07:43 PM   #1
coldbeer
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Location: Orion–Cygnus Arm, MWG
Distribution: Slackware, Ubuntu
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Firefox connection


I have identical slackware 14.1 installs of my computer and my wife's computer. I have firefox installed locally in the user accounts (not a system wide install).

I was checking my computers running
sudo lsof

And on my wife's computer I got this connection:
TCP 192.168.1.104:40741->ec2-52-88-81-160.us-west-2.compute.amazonaws.com:https (ESTABLISHED)

I went through all the settings and turned off all the options I know that connect to the internet. On my computer I don't get the above connection. There were no extra add-ons that I didn't already know about. Even when I deleted all the add-ons it was still connecting.

When firefox was not running on my wife's comuter - I didn't get the connection. *MY* computer did not have the connection when firefox was running. Just my wife's computer when running firefox.

I deleted the .mozilla directory, then restarted firefox. - still had the connection.

Then I deleted the firefox application directory and unzipped from a new download - That did it - the connection was gone.

Anyone know what that connection was? Searching Google on this is rather inconclusive.

Last edited by coldbeer; 11-08-2015 at 07:53 PM.
 
Old 11-09-2015, 01:10 AM   #2
unSpawn
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Since all "evidence" is gone and there's no relevant details there's nothing left except to speculate (I won't). Next time run the web browser through a filtering proxy or tcpdump traffic to see what kind of requests are made?..
 
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Old 11-09-2015, 09:18 AM   #3
coldbeer
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Good tip. Thanks, I'll remember that in the future.

I did a whois and its amazon so it shouldn't be too nefarious.

Domain Name: amazonaws.com
Registry Domain ID: 197784869_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2014-10-28T12:38:28-0700
Creation Date: 2005-08-17T19:10:45-0700
Registrar Registration Expiration Date: 2018-01-15T20:59:59-0800
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited)
Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited)
Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited)
Registry Registrant ID:
Registrant Name: Legal Department
Registrant Organization: Amazon.com, Inc.
Registrant Street: PO BOX 81226
Registrant City: Seattle
Registrant State/Province: WA
Registrant Postal Code: 98108-1226
Registrant Country: US


Thanks for your reply!

Last edited by coldbeer; 11-09-2015 at 09:20 AM.
 
Old 11-09-2015, 12:00 PM   #4
Habitual
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Code:
echo | openssl s_client -connect ec2-52-88-81-160.us-west-2.compute.amazonaws.com:443
take from here (including)...
Code:
-----BEGIN CERTIFICATE-----
up to and including...
Code:
-----END CERTIFICATE-----
and paste the cert into the box at https://www.sslshopper.com/certificate-decoder.html and we get these results.

Code:
Common Name: shavar.services.mozilla.com
Subject Alternative Names: shavar.services.mozilla.com, tracking-protection.services.mozilla.com, tracking.services.mozilla.com
Organization: Mozilla Corporation
Locality: Mountain View
State: California
Country: US
Valid From: August 24, 2015
Valid To: August 29, 2018
Issuer: DigiCert SHA2 Secure Server CA, DigiCert Inc Write review of DigiCert
Serial Number: 0c7557127e4f937bd4dbea35151b2f08
Next I did a
Code:
host shavar.services.mozilla.com
and I see the 52.88.81.160

Gurgling shavar.services.mozilla.com
I find https://wiki.mozilla.org/Services/Tr...rver_-_Testing

What it means, I have NO IDEA, but there it is.
Hope that helps.

Last edited by Habitual; 11-09-2015 at 12:02 PM.
 
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Old 11-09-2015, 02:53 PM   #5
coldbeer
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Thanks!
 
Old 11-09-2015, 03:27 PM   #6
Habitual
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You are welcome.
Is it possible that the wife's firefox was a nightly build or something like that?

That's the only reason I could imagine for that connection.
 
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Old 11-10-2015, 12:36 AM   #7
unSpawn
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Quote:
Originally Posted by Habitual View Post
What it means, I have NO IDEA, but there it is.
Good recon. Shavar is the Mozilla tracking protection-and-more. For what it protects against see here: https://github.com/mozilla-services/shavar-prod-lists and the lists here: https://github.com/mozilla-services/shavar-test-lists
 
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