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GOOGLEGSUITE  February 2015

GOOGLEGSUITE February 2015

Subject:

Re: New type of phishing attack

From:

Mally Mclane <[log in to unmask]>

Reply-To:

[log in to unmask]

Date:

Wed, 25 Feb 2015 22:32:51 +0000

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (172 lines)

On 25 February 2015 at 22:29, Frank Barton <[log in to unmask]> wrote:
> Thank you for sharing GAM with the group. it is an awesome tool!

It's a tool that I'm surprised Google don't supply....!!


> On Wed, Feb 25, 2015 at 5:17 PM, Steve Siirila <[log in to unmask]> wrote:
>>
>> You may also want to check the SendAs similarly:
>>
>> gam user blahblah show sendas
>>
>> We've been checking both on compromised accounts for some time now -- many
>> update one or the other or both.  Note that the messages going out from the
>> compromised accounts often have a Reply-To: header pointing at something in
>> the spammer's control as well.
>>
>> While we're on this topic, how many folks have an added hop on their
>> outbound email stream from Google?  We currently do, but soon plan to have
>> Google send messages out direct-to-MX.  This will necessarily shift the
>> responsibility for detection of spamming events from us to Google.  We are
>> curious how other sites deal with this.
>>
>> On Wed, Feb 25, 2015 at 3:47 PM, Mally Mclane <[log in to unmask]>
>> wrote:
>>>
>>> gam user blahblah show forward
>>>
>>> ?
>>>
>>> On 25 February 2015 at 21:44, Doug Tomer <[log in to unmask]> wrote:
>>> > Could you list the gam command you use to check for forwarding rules?
>>> >
>>> > On Wed, Feb 25, 2015 at 1:15 PM, Nick Young <[log in to unmask]> wrote:
>>> >>
>>> >> Marie ---
>>> >>
>>> >> My condolences about the attacks.  Unfortunately for us, we see this
>>> >> frequently (a majority of the time actually), and i've seen that kind
>>> >> of
>>> >> attack since around 2011.
>>> >>
>>> >> We've had about 100 compromised since January 1st i think, all coming
>>> >> from
>>> >> Ghana, Nigeria, and South Africa... and all of them have sent out
>>> >> around
>>> >> 800-1000 messages, typically alphabetically ordered recipients, and
>>> >> typically to external (not our domain) users. About 1/3 of the
>>> >> compromised
>>> >> accounts will have forwarding rules set up like you described. Over a
>>> >> 2 day
>>> >> period recently, there was a coordinated attack that used 35 of our
>>> >> accounts
>>> >> to send the same phishing email to around 10,000 recipients.
>>> >>
>>> >> The more sophisticated attacks will clone/spoof one of our official
>>> >> university websites, or our official SSO page, which makes it more
>>> >> difficult
>>> >> for our users to recognize the attack.
>>> >>
>>> >> So, if you're just now starting to see these kinds of attacks, it's
>>> >> likely
>>> >> going to continue. Once they start seeing a good rate of return on
>>> >> attacking
>>> >> your users, they'll keep hammering away.
>>> >>
>>> >> You can check for forwarding rules using GAM, or the google API. I'd
>>> >> encourage you to look at removing 3rd party tokens as well, as those
>>> >> can be
>>> >> attack vectors too (either the way they got in the first time, or
>>> >> installed
>>> >> afterwards to leave a back door).
>>> >>
>>> >> Good luck :-)
>>> >>
>>> >> --Nick
>>> >>
>>> >> ..................................................................
>>> >> Nick Young
>>> >> IT Manager, Application Administration, ITS
>>> >> The University of North Carolina at Greensboro
>>> >> n_young@
>>> >> uncg
>>> >> .edu | http://its.uncg.edu
>>> >> ..................................................................
>>> >>
>>> >> On Wed, Feb 25, 2015 at 12:59 PM, Marie L Scott <[log in to unmask]>
>>> >> wrote:
>>> >>>
>>> >>> We experienced a slightly different type of phishing attack last
>>> >>> week.
>>> >>> While the email itself looked like any other that we had seen before.
>>> >>> But
>>> >>> how the hacker responded with the credentials was slightly different.
>>> >>> The
>>> >>> phisher changed the user's Google forwarding settings so that all
>>> >>> mail was
>>> >>> forwarded to an external account, with the DELETE option set, so that
>>> >>> any
>>> >>> delivery failures would automatically go to trash.  These folks are
>>> >>> also
>>> >>> sophisticated enough to know exactly how many emails they can send
>>> >>> outbound
>>> >>> in order to remain under Google's radar.  The only way we found out
>>> >>> about
>>> >>> the forwarding component was when the users contacted us to say they
>>> >>> were
>>> >>> not receiving emails.  So just a heads up.
>>> >>>
>>> >>> --
>>> >>> Marie L. Scott
>>> >>> Director, Collaboration Services
>>> >>> Virginia Commonwealth University
>>> >>> [log in to unmask]
>>> >>> 804.828.4055
>>> >>>
>>> >>>
>>> >>>
>>> >>> ********** Participation and subscription information for this
>>> >>> EDUCAUSE
>>> >>> Constituent Group discussion list can be found at
>>> >>> http://www.educause.edu/groups/.
>>> >>
>>> >>
>>> >> ********** Participation and subscription information for this
>>> >> EDUCAUSE
>>> >> Constituent Group discussion list can be found at
>>> >> http://www.educause.edu/groups/.
>>> >
>>> >
>>> > ********** Participation and subscription information for this EDUCAUSE
>>> > Constituent Group discussion list can be found at
>>> > http://www.educause.edu/groups/.
>>>
>>>
>>>
>>> --
>>> Mally Mclane
>>> Communication and Collaboration Services Manager
>>> University of Bristol
>>>
>>> **********
>>> Participation and subscription information for this EDUCAUSE Constituent
>>> Group discussion list can be found at http://www.educause.edu/groups/.
>>
>>
>> ********** Participation and subscription information for this EDUCAUSE
>> Constituent Group discussion list can be found at
>> http://www.educause.edu/groups/.
>
>
>
>
> --
> Frank Barton
> Apple Certified Mac Technician
> Technology Support Coordinator
> Husson University
> ********** Participation and subscription information for this EDUCAUSE
> Constituent Group discussion list can be found at
> http://www.educause.edu/groups/.



-- 
Mally Mclane
Communication and Collaboration Services Manager
University of Bristol

**********
Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.

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