About that antivirus program on your computer

Here in the last week, both at work and at home, I have seen the following type of email:

 

This email has every indication of being malicious, with a password protected word document, unsolicited, and with very little details to go on.  Let's download this puppy into our virtual machine and check it against just generic Windows Defender built into the machine.

Screen Shot 2017-03-14 at 8.44.59 PM.png

Nothing seems all that unusual.   But if you open the file, it really wants you to enable macros and click on them.

 

Screen Shot 2017-03-14 at 9.21.18 PM.png

Look what happens when you enable the macros and click on the files.  A bunch of VB scripts.  Are those scripts dangerous?  Absolutely.

 

This virustotal scan was taken nearly one week after the files was emailed to us.  Are we brave enough to run the scripts in a controlled environment?

Wisdom of a 10-year old

There is much joy in raising a 10-year old who understands the geek culture.  Josh loves to think in hashtags (#crazycat) and understands the general basics on how the operating system works.  Today, coming back from the store he puts up this gem:

"Donald Trump is speaking:  brain.exe has stopped responding.  Click OK to restart brain.exe with /dumbmode: on."

He then follows this up with the following.  brain.exe has obtained a virus.  Click OK to terminate brain.exe.  I told him that it was ironic that he was talking about brain and computer virus in the same context because one of the first computer viruses that existed that affected PCs in the 80's.  His genuine interest both tickles my fancy and slightly scares me (no working for Russian mafia for you).

Anatomy of a scam? Or just a password notification?

While eating my breakfast this morning and checking up on email, I run across 2 of the following emails:

3am email about a password reset from Facebook to an email address that is not used by the family as logins?  The Spidey Senses are tingling.  Time to look at the raw email data and see what is going on....

Delivered-To: beckerfamily@floridabeckers.us
Received: by 10.229.14.201 with SMTP id h9csp502473qca;
Sat, 20 Sep 2014 00:04:35 -0700 (PDT)
X-Received: by 10.180.211.208 with SMTP id ne16mr1532381wic.71.1411196675222;
Sat, 20 Sep 2014 00:04:35 -0700 (PDT)
Return-Path:
Received: from mx-out.facebook.com (outmail016.ash2.facebook.com. [66.220.155.150])
by mx.google.com with ESMTPS id v14si4512206wie.3.2014.09.20.00.04.34
for
(version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
Sat, 20 Sep 2014 00:04:35 -0700 (PDT)
Received-SPF: pass (google.com: domain of password+h_i3dki_@facebookmail.com designates 66.220.155.150 as permitted sender) client-ip=66.220.155.150;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of password+h_i3dki_@facebookmail.com designates 66.220.155.150 as permitted sender) smtp.mail=password+h_i3dki_@facebookmail.com;
dkim=pass header.i=@facebookmail.com;
dmarc=pass (p=REJECT dis=NONE) header.from=facebookmail.com
Received: from facebook.com (CB2uJzaEr7FAP9Z3NNj8E9uO4ydVsDyZ8ttuyabo2wEjYbPxtGSfri+xd3E5hhYV 10.158.104.67)
by facebook.com with Thrift id 6079b0ec409411e494110002c9550d78-2a1eb3f0;
Sat, 20 Sep 2014 00:04:34 -0700
X-Facebook: from 2401:db00:3010:3018:face:0:4f:0 ([MTI3LjAuMC4x])
by m.facebook.com with HTTP (ZuckMail);
Date: Sat, 20 Sep 2014 00:04:34 -0700
Return-Path: password+h_i3dki_@facebookmail.com
To: Nicole Beasley-Becker
From: “Facebook”
Reply-to: noreply
Subject: Somebody requested a new password for your Facebook account
Message-ID: <7833a8c7c38f65544e5ddf3b132fa1f0@m.facebook.com>
X-Priority: 3
X-Mailer: ZuckMail [version 1.00]
Errors-To: password+h_i3dki_@facebookmail.com
X-Facebook-Notify: password_reset; mailid=a872430G30a5e9d3G0G178G29129f32
X-FACEBOOK-PRIORITY: 1
X-Auto-Response-Suppress: All
Require-Recipient-Valid-Since: beckerfamily@floridabeckers.us; Wednesday, 4 Aug 2010 15:07:54 +0000
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary=”b1_7833a8c7c38f65544e5ddf3b132fa1f0”
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=facebookmail.com;
s=s1024-2013-q3; t=1411196674;
bh=KsNcsnOLkT3p6hrtXpRx5uiG7l2rqzTocgLbQUUAQFg=;
h=Date:To:From:Subject:MIME-Version:Content-Type;
b=iP4aprX0sCUXj9yWvddNp0ssj/zYj0X67/XpWm4pgxg73tbc5qbrsa03koq2Qo0+s
5kJzurtEhZ1l012QgYM0f3xOMmztwwBzQfxQ03ZXSRRhlBM0xZcseQ9iHdeXxiHugh
VEOgxGnS25a6LTFHVrV+joWxnURGx11qEgdhFcjo=


—b1_7833a8c7c38f65544e5ddf3b132fa1f0
Content-Type: text/plain; charset=”UTF-8”
Content-Transfer-Encoding: quoted-printable

Hi Nicole,

Somebody recently asked to reset your Facebook password.

Click here to change your password.[https://www.facebook.com/recover/code?=
u=3D816179667&n=3D654156]=20

Alternatively, you can enter the following password reset code:

654156

Didn’t request this change?

If you didn’t request a new password, let us know immediately.

Change Password
https://www.facebook.com/recover/code?u=3D816179667&n=3D654156


Thanks,
The Facebook Team



=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This message was sent to nicole@floridabeckers.us at your request.
Facebook, Inc., Attention: Department 415, PO Box 10005, Palo Alto, CA =
94303


—b1_7833a8c7c38f65544e5ddf3b132fa1f0
Content-Type: text/html; charset=”UTF-8”
Content-Transfer-Encoding: quoted-printable

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the following password reset code: 654156 Didn't request this change? =
If you didn't request a new password, let us know immediately . =
=C2=A0 =C2=A0 Change=C2=A0Password =C2=A0 =C2=A0
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=
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Somebody recently asked to reset your =
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password.
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code:
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style=3D”color:#333333;font-weight:bold;”>Didn't request this =
change?
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style=3D”color:#3b5998;text-decoration:none;”>let us know =
immediately
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at your request. Facebook, =
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94303
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/>




—b1_7833a8c7c38f65544e5ddf3b132fa1f0—
— Raw eMail.

Hmm...it looks to be legitimate.  No links are connecting to or directing to any place other than Facebook,  Bringing up the virtual machine and opening the link shows nothing but a legitimate Facebook page....

So what is really going on?  I check on my wife's email to see if she received the same email since it listed her name on the email.  Sure enough, identical email there too.  It looks like that someone did try to log reset her password and Facebook was trying to protect.  Sometimes link laden email is legitimate.  Time to tune those Spidey Senses again.....

So, about that order I "placed"...

Since we run multiple filters at work that do a good job that block spam and malware infested email, I am always interested in what makes it through the defenses as opportunites for improvement.

Take, for instance, an email I received tonight about a supposed order I made.

 What did I order?

What did I order?

Hmmmm...I ordered something today with my VISA with email containing my email from a .ru email address (for those not familiar, .ru is Russia).  They are so kind to send me an invoice of my order in an attachment, which happens to be a .html file (web page code, again if you are not familiar).  

 Looks legit to me. &nbsp;:)

Looks legit to me.  :)

Okay.  I know, suspicious file....must send it over to virustotal.com and see if it detects anything in the file.

 No viruses detected???

No viruses detected???

Suspicious email, suspicious attachment, but comes up clean...what gives?

Let's open up the html code in a text editor and see what is going on....

 Cyrillic plus mysterious javascript...

Cyrillic plus mysterious javascript...

Fortunately, we have other tools to try to get a better handle of what is going on.  Submitting the file to malwr.com (run by the ShadowServer folks), we see there is really more than meets the eye.

 Creates server and adds to startup....

Creates server and adds to startup....

There is definitely something malicious about this email.  Time to throw it into a virtual machine and try to analyze safely.  In my linux machine, opening the .html file opens this up....

 Rut Roh.....

Rut Roh.....

Double extensions....PDF to make the end user believe he is downloading a copy of the invoice to read in Adobe, but is it?  .scr extensions are often used for Screen Savers in the Windows world, or as an extension for a script.

Let's pop the URL that we downloaded the file from and see if protection is up to date?

 Only one URL scanner showing this as malicious

Only one URL scanner showing this as malicious

Moral of the story is if it waddles like a duck and quacks like a duck, it is probably a duck, and this duck will make your system sick.  Never click on unexpected attachments or links in email without verifying from source.

If you have questions about a file, don't hesitate to use tools like VirusTotal and Malwr for them to analyze and help security companies improve their tools with malware samples.

Data breaches galore

Over the past 40 days, we have seen a lot of information regarding data breaches.  Starting with the announcement of the Target breach, the following breaches have been confirmed.

  • Target - 40 million cars plus up to another 70 million ids/emails, etc.
  • Neiman Marcus - 1.1 million cards
  • Michaels?
  • Snapchat (I know, not card related, but still affects 4.6 million users)

There is also a report from January 13 that this may be the tip of the iceberg, as 3 more may yet to be announced, and the FBI on January 23 indicated that many more may be coming.

What does this mean?   First of all, if you shopped at any of these stores during the time that each store had announced, then watch your bank statements for unauthorized transactions.  Work with your financial institution to replace as needed.

As for after the breach, I believe that this may be a tipping point with regards to EMV in the United States, and perhaps debit cards in general.  EMV (also known as Chip and PIN) is a standard where each card has a chip on it in addition to the magnetic stripe.  The card is swiped and a PIN is entered that needs to match the chip within the card 3 times or the card is locked.  This method is used in Europe primarily and has been recently introduced in Canada, but is not foolproof either (add the fact that it migrates the liability from the financial institution to the end user).

Secondarily, I believe that the use of debit cards will decline (with an equivalent increase in credit cards and/or cash based on the consumer) as people's fear increases that a compromised debit card will lead to a lengthy personal situation as the financial institution works through the fraud and eventually restores the consumers money.  People have already moved to a cashless society, but they will need a platform they have trust in.