It’s a Trap!! Infected Microsoft Word Files Exploiting Unpatched Vulnerability

April 11, 2017

itsatrap.jpegA new virus is ‘in the wild’ that exploits a ‘zero-day’ vulnerability to infect or, worst case, wipe computers. The only known mitigation is to not download or view the infected files.  One may also view the files using ‘Protected View’, which has been reported to work in this case. Opening the file outside of Protected View will infect the system, however.

Note: Disabling ‘Macros’ does not protect against this exploit. The exploit bypasses most system protections, including the tools built into Windows 10.

The infected word document arrives via email.  Once opened, it downloads malicious code from a remote site, and installs various malware payloads. The virus actually opens a ‘decoy’ Word document in an attempt to cover its behavior.

A patch is expected today, but patches are useless if they are not applied. The patch will likely be issued only for Windows 7,8,10.  Older Windows versions will likely still be vulnerable.

At a Glance:

Threat Level:     HIGH
Delivery Method:     Email
Infection Vector:     MS Word Document:  .doc, .docx, .rtf
Infection Type:     Various malware libraries
Vulnerable:     All Windows Versions. All Office versions.

Actions:

1- Communicate and Educate: Make sure ALL users are aware

2- Until patch is applied:  Utilize Protected View to view documents

You (or IT support) may also change registry files to automatically open documents in Protected View.

3- Pay attention to patch cycle. MicroSoft’s standard patch day is today. Make sure patches are applied and operational.

Outside Links:

Ars Technica

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‘Shellshock’ In Plain English: Latest Security Vulnerability is a Big One

September 25, 2014

Many network administrators and information security folks are feeling the effects of the ‘Shellshock’ bug, this morning.  The bug has been confirmed as ‘worm-able’, and proof-of-concept code is already bouncing around.
(source: Errata)

In many ways, Shellshock is worse than Heartbleed.  Here is a quick, plain English breakdown of the vulnerability:

What Shellshock Is:

It’s an attack that does not require the attacker to ‘authenticate’ to the system or server being attacked.  In other words- the attacker does not have to have a username/password, or break passwords.

What the attacker can do:

Everything up to full control of the compromised device/system/server.

What Shellshock affects:

Linux, Mac OS/X or any device that uses a ‘Bash’ Linux command-line (most internet connected devices).

If you read that it only affects Linux systems/servers- don’t breathe a sigh of relief just yet!  Most of the ‘Internet-of-things’ devices (Cameras, refrigerators, TVs, etc.) use a form of Linux, and are potentially vulnerable.  In addition, if you are running ‘SOHO (Small Office/Home Office)’ wireless access points, managed switches, and routers, or if you are using a store-bought Firewall/Cable modem then you may be vulnerable.

If you rely on IT support, and they tell you that there is ‘No problem- we don’t allow shell or terminal access to the outside world’, then you need to point out to them that is not the entire attack vector:  Any process, or program that IS accessible, that sends commands to the shell, is potentially vulnerable.  It is not always obvious which programs or services do this, behind the scenes.

So what can be done?

Review and Confirm: Check your systems, servers, and devices to see if they are, in fact, potentially vulnerable.

Patch:  A number of the primary Linux shell versions had patches available within hours.

Keep an eye out for firmware updates for your internet devices: Internet connected TVs, Wifi access points, SOHO-class firewalls, Network storage devices, internet connect cameras, etc.

Kill Non-essentials: Consider turning off, or disconnecting, non-essential ‘internet-of-things’ devices until a patch is available for them.

BE ALERT FOR PHISHING SCAMS:  So-called ‘spear phishers’, and scammers of every ilk, like to use these well-publicized security issues to trick people into downloading malicious programs.  Always deal with a known security site, or directly with the manufacturer.

USEFUL READING:

Patch NOW (the Register)

Shellshock bug (the Mirror)

TECHNICAL: CVE-2014-6271 (NIST.gov)

TECHNICAL: OSS Write-up

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Making Sense of “Heartbleed”: Information Security Catastrophe/Nightmare

April 11, 2014

The term “Internet Security Nightmare” has been used.  This is not an exaggeration, and not an example of hyperbole; Heartbleed is a security catastrophe that cuts a wide swathe across the internet.

If you are not aware of the recently discovered Heartbleed flaw: An extremely critical security flaw has been identified in a cryptographic software component that affects an estimated two-thirds of Web servers, as well as many devices and programs that rely on the software component.  The flaw has been nicknamed “Heartbleed” because of the methodology used to exploit it.  The flaw allows an attacker to retrieve active contents in memory, including private security keys, unencrypted information, and usernames and passwords.

The Heartbleed flaw affects a software module that is in use by everything from routers and web servers, to some phones and devices.

Here are some steps you should take now to give yourself a fighting chance against this flaw:

1) Examine your own practice first:  Are you using hosted email, providing client portals, file upload services, or other web- or internet- enabled services for your clients?  If the services offer SSL, or access using encryption then you need to check with your hosting provider or IT company to confirm that they have patched, or otherwise mitigated the issue.

2) Change your passwords AFTER you have confirmed the service has been fixed: This flaw is being actively exploited.  If you change your password BEFORE the service is fixed, then you are still at risk.  Confirm first, change after.

3) Be aware of “password re-use”:  This flaw has existed for 2 years, and has only now come to light.  Some companies have gone back to review logs, and have found active attacks against this flaw from before March.  If you use the same password in multiple locations, then it is time to change all your passwords.  Recommended reading:   Because One Thing Leads to Another: Data Breach and Password Re-Use

I have included a simple chart below, as an example of high profile services to review (source: Mashable):

Social Networks

Was it affected? Is there a patch? Do you need to change your password? What did they say?
Facebook Unclear Yes Yes “We added protections for Facebook’s implementation of OpenSSL before this issue was publicly disclosed. We haven’t detected any signs of suspicious account activity, but we encourage people to … set up a unique password.”
LinkedIn No No No “We didn’t use the offending implementation of OpenSSL in http://www.linkedin.com or http://www.slideshare.net. As a result, HeartBleed does not present a risk to these web properties.”
Tumblr Yes Yes Yes “We have no evidence of any breach and, like most networks, our team took immediate action to fix the issue.”
Twitter Unclear Unclear Unclear Twitter wrote that OpenSSL “is widely used across the internet and at Twitter. We were able to determine that [our] servers were not affected by this vulnerability. We are continuing to monitor the situation.”Twitter has not yet responded to Mashable‘s request for comment.

Other Companies

Was it affected? Is there a patch? Do you need to change your password? What did they say?
Apple Unclear Unclear Unclear Apple has not yet responded to a request for comment.
Amazon No No No “Amazon.com is not affected.”
Google Yes Yes Yes “We have assessed the SSL vulnerability and applied patches to key Google services.” Search, Gmail, YouTube, Wallet, Play, Apps and App Engine were affected; Google Chrome and Chrome OS were not.*Google said users do not need to change their passwords, but because of the previous vulnerability, better safe than sorry.
Microsoft No No No Microsoft services were not running OpenSSL, according to LastPass.
Yahoo Yes Yes Yes “As soon as we became aware of the issue, we began working to fix it… and we are working to implement the fix across the rest of our sites right now.” Yahoo Homepage, Yahoo Search, Yahoo Mail, Yahoo Finance, Yahoo Sports, Yahoo Food, Yahoo Tech, Flickr and Tumblr were patched. More patches to come, Yahoo says.

Email

Was it affected? Is there a patch? Do you need to change your password? What did they say?
AOL No No No AOL told Mashable it was not running the vulnerable version of the software.
Gmail Yes Yes Yes “We have assessed the SSL vulnerability and applied patches to key Google services.”*Google said users do not need to change their passwords, but because of the previous vulnerability, better safe than sorry.
Hotmail / Outlook No No No Microsoft services were not running OpenSSL, according to LastPass.
Yahoo Mail Yes Yes Yes “As soon as we became aware of the issue, we began working to fix it… and we are working to implement the fix across the rest of our sites right now.”

Stores and Commerce

Was it affected? Is there a patch? Do you need to change your password? What did they say?
Amazon No No No “Amazon.com is not affected.”
Amazon Web Services(for website operators) Yes Yes Yes Most services were unaffected or Amazon was already able to apply mitigations (see advisory note here). Elastic Load Balancing, Amazon EC2, Amazon Linux AMI, Red Hat Enterprise Linux, Ubuntu, AWS OpsWorks, AWS Elastic Beanstalk and Amazon CloudFront were patched.
eBay Unclear Unclear Unclear “The vast majority of our services were not impacted and our users can continue to shop securely on our marketplace.”
GoDaddy Yes Yes Yes “We’ve been updating GoDaddy services that use the affected OpenSSL version.” Full Statement
PayPal No No No “Your PayPal account details were not exposed in the past and remain secure.” Full Statement
Target No No No “[We] launched a comprehensive review of all external facing aspects of Target.com… and do not currently believe that any external-facing aspects of our sites are impacted by the OpenSSL vulnerability.”

Banks and Brokerages

Was it affected? Is there a patch? Do you need to change your password? What did they say?
Bank of America No No No “We’re currently taking precautions and steps to protect customer data from this threat and have no reason to believe any customer data has been compromised in the past.”
Chase No No No “These sites don’t use the encryption software that is vulnerable to the Heartbleed bug.”
E*Trade No No No E*Trade is still investigating.
Fidelity No No No “We have multiple layers of security in place to protect our customer sites and services.”
PNC No No No “We have tested our online and mobile banking systems and confirmed that they are not vulnerable to the Heartbleed bug.”
Schwab No No No “Efforts to date have not detected this vulnerability on Schwab.com or any of our online channels.”
Scottrade No No No “Scottrade does not use the affected version of OpenSSL on any of our client-facing platforms.”
TD Ameritrade No No No TD Ameritrade “doesn’t use the versions of openSSL that were vulnerable.”
TD Bank No No No “We’re currently taking precautions and steps to protect customer data from this threat and have no reason to believe any customer data has been compromised in the past.”
U.S. Bank No No No “We do not use OpenSSL for customer-facing, Internet banking channels, so U.S. Bank customer data is NOT at risk.”
Wells Fargo No No No No reason provided.

Government and Taxes

Was it affected? Is there a patch? Do you need to change your password? What did they say?
1040.com No No No “We’re not vulnerable to the Heartbleed bug, as we do not use OpenSSL.”
FileYour Taxes.com No No No “We continuously patch our servers to keep them updated. However, the version we use was not affected by the issue, so no action was taken.”
H&R Block Unclear No Unclear “We are reviewing our systems and currently have found no risk to client data from this issue.”
Healthcare .gov Unclear Unclear Unclear Healthcare.gov has not yet responded to a request for comment.
Intuit (TurboTax) Yes Yes Yes Turbotax “has examined its systems and has secured TurboTax to protect against the “Heartbleed” bug.” Full Statement
IRS Unclear Unclear Unclear “The IRS continues to accept tax returns as normal … and systems continue operating and are not affected by this bug. We are not aware of any security vulnerabilities related to this situation.”

Other

Was it affected? Is there a patch? Do you need to change your password? What did they say?
Dropbox Yes Yes Yes On Twitter: “We’ve patched all of our user-facing services & will continue to work to make sure your stuff is always safe.”
Evernote No No No “Evernote’s service, Evernote apps, and Evernote websites … all use non-OpenSSL implementations of SSL/TLS to encrypt network communications.”Full Statement
LastPass Yes Yes Yes “Though LastPass employs OpenSSL, we have multiple layers of encryption to protect our users and never have access to those encryption keys.”
Netflix Unclear Unclear Unclear “Like many companies, we took immediate action to assess the vulnerability and address it. We are not aware of any customer impact.”
OKCupid Yes Yes Yes “We, like most of the Internet, were stunned that such a serious bug has existed for so long and was so widespread.”
SoundCloud Yes Yes Yes “We will be signing out everyone from their SoundCloud accounts … and when you sign back in, the fixes we’ve already put in place will take effect.”
Spark Networks (JDate, Christian Mingle) No No No Sites do not use OpenSSL.
Wunderlist Yes Yes YesYes “You’ll have to simply log back into Wunderlist. We also strongly recommend that you reset your password for Wunderlist.”Full Statement

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Part One: Simple Steps To Secure Your Client During Litigation

September 11, 2012

In the past year, there has been a distinct uptick in cases involving data breach and key logging malware- especially in family law cases. This uptick is not by anonymous, random third parties, but rather by the actual litigants in a case.

Part of the reason for the uptick is that “bugging” someone’s computer  or cell phone (electronic intercept) has gotten significantly easier. Most people can handle installing software.  Likewise with breaking into someone’s webmail, banking, or other online accounts.

Here are steps your client can take, right now, to protect their information and communications:

  • Create a List of Electronic Assets – Experience shows that, without a list, things will be overlooked.  Have your client list out cell phone, webmail, social network, and online banking accounts. In the same manner, have them list out things like wifi and home network assets.  This list is the starting point.
  • Change Passwords and Password Recovery Questions – Simply changing passwords is not enough. Password recovery questions (“What is the name of your favorite pet?”) are an easy way for someone who is familiar with your client to gain entry to their online resources.
  • Avoid Password Reuse – Using the same password for everything is a recipe for disaster. Understandably, it can be an inconvenience to use different passwords everywhere, but there are ways to make meaningful passwords that are easy to remember. Here is a full write-up on password reuse.
  • Review WiFi Security – If the opposing side in a matter was the one that set up the home wireless network, then all they need to do is be within range to join back on the network and gain access to systems or to “sniff” and view network traffic (including your client’s passwords, communications, etc.).
  • Review Joint Cellular Accounts – Depending on the carrier, joint cellular plans can give the opposing party access to endpoints in voice and text communications. Some carriers may actually have access to the content of text messages online. While TRO and data protection may prevent a direct change to the account or plan, your client may consider using a pay-as-you-go plan.

These are some simple steps that can be taken with minimal cost, and yet they will provide an immediate boost to your client’s security stance.

Tomorrow: Part 2- Simple Steps In Case of Breach

If you or your client feel that there has already been a breach, or you are facing a particularly aggressive or knowledgeable opposition, you may consider inquiring about our Client Information Security package (CISP).

The CISP is a flat-rate, full assessment of your client’s information security and includes a drop-in firewall with logging and 24/7 monitoring for intrusion attempts, malware activity, and other breach behavior.  Vidoc Razor not only will assess the security of your client, but fixes the issues identified.  All hardware is provided by Vidoc Razor.

You can find more information by clicking HERE.

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Mac != Automatically Safe (Take It From a Mac Fan!)

April 1, 2009

I love my Macbook Pro – ask anyone who knows me.

Before you Windows users leave thinking that this is YAFBR (Yet Another Fanboy Rant) you should all know that I believe strongly in using the right tool for the job – which does not always mean using the trusty Macbook, and sometimes using MS Windows instead (lord help me, but I said it and there is no taking it back).  Sometimes it involves Linux or a BSD variant.  I love them all for different reasons.

I am concerned with the number of Tweets I saw related to Conficker this morning that stated (not an exact quote) “Thank goodness I have a Mac – it is safer than a PC…Macs never get viruses” and other sentiments that denigrated MS Windows in a sometimes more, sometimes less manner.

Before you get too happy consider the information discussed at CanSecWest last week and published by Milw0rm prior to vendor notification.  Check it out here (but come back!)

It is important to note that you are only as safe as your habits and software, Apple system or not.

I have worked a number of Apple forensics cases involving intrusion and interception of electronic communication.  In each case the firewall was turned off (the user wasn’t aware of how to control the firewall) and there was an astounding lack of logging (the user didn’t know how to control or review logs on the Apple system).

I can also tell you that the number of these types of cases is definitely on the rise.

Here is a quick test:  If your Apple (you can also insert Linux, *BSD, Windows) system was potentially compromised, how would you know?  Can you pull up, right now, failed connection attempts, firewall logs, running process logs?

If not, then take that as your sign and make sure to get yourself battle-ready.

As bot-nets become more and more prevalent if you are not part of the solution you are truly a large part of the problem.

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