Security Meets Cost

I was recently asked by a small business how could they secure their IT on a budget this made me stop to think about that tricky subject "security meets cost". It is in these terms that a business must be practical, you need to stand back and identify your actual financial loss were a cyber attack or unforeseen event to occur resulting in the loss of data. And to be quite honest if your spending thousands on perimeter controls and don't have anyone in your business who can properly configure, monitor and maintain these devices then your really just throwing money down the drain.

After going through the business I advised them to put in place a number of steps that would go a long way towards protecting them. It must be noted that the business in question did not deal with any payments card information (PCI), personally identifiable information (PII) or personal health information (PHI) if your business is dealing with the above then you will need to put more controls in place.

My plan for the business was pretty simple and I will lay it out below.

1) Education:
This is one of the fundamental roles that small businesses neglect, there are hundreds of services out there that will do training days on different areas in an easy to understand and education manner. If you can train staff to identify Phising, Smishing and other everyday threats then you are starting to win a war on the front line. Education helps get employees to think before opening an attachment or giving out "harmless" information over the phone. For the more adventures small business there are packages available for you to run harmless attacks that contain educational videos when clicked. PhishMe would be one such company that comes to mind in that regard.

2) Backups:
This one is quite simple but often forgotten, with the rise of ransomware every small business should keep daily or weekly backups. These backups should be occasionally tested to ensure that they can restore systems in the event of an emergency such as a ransomware infection.

3) Business Continuity Plan:
 Every business should have one and should test it, you can work on building this up over a period of time but you need to start somewhere. EG. if the building floods are our desktops on the floor? Maybe we should elevate them to mitigate this problem. During this flood do employee have the ability to work from home? Yes we have remote access to the building over our companies VPN.

The above are just suggestions but you get the drift if you start to disect your company and compare it to potential events you might be surprised what you come up with. Fail to prepare then prepare to fail.

4) Virus and Anti- malware protection:
Again this is simple but neglected in many small businesses, buy a good antivirus and anti-malware package and set the updates to times you know your employees wont shut them down eg lunch time or after working hours. A good antivirus and malware solution is like having a security guard in your network throwing out all the bad guys.


5) Enable Bit-locker or the equivalent:
Bit-locker encrypts your disk so if someone breaks in and robs your physical machine in theory bit-locker will keep that information safe, unless of course the thief is Homeland security or the equivalent in which case your data is the least of your worries.

6) Password Policy:
Put in place a robust password policy that includes the rotation of passwords regularly and password history check to prevent the re-use of passwords.

7) Third party checks:
If you are using a third party to store data or to provide remote support ask them to provide you with a list of controls that are in place to protect you from a security point of view. If they tell you they are super secure and you need to trust them get worried because this means they haven't got anything to give you and your cloud solution is some guy with a laptop and 15 housemates that use it to stream illegal movies.

8) Document everything!
You should document all of your procedures and workflows because if one guy has all this information and gets hit by a bus your knowledge is dead. Good documentation is key to smooth transition and helps aid security through clarity.



If you get all the above in order you will have made a decent move towards securing your business at a minimal cost, of course there is plenty of room to do more but the hardest part is always to make a start.

Recovering "Deleted" snapchat messages

You have just arrived at this post and read the heading "recovering deleted snapchat messages" and now your thinking snapchat deletes my messages after 10 seconds doesn't it? Well the simple answer to that question is no. This isn't any kind of a new revelation the research has been around since 2013 it just doesn't seem to be well known so I have decided to do my part to try and highlight it. The main reason for writing this post is to try and get the message through to teenagers and young adults that the content you are sending may not be secure and could come back to bite you. There is also a massive legal issue with the sending of explicit images if both parties are seen as minors and you could land yourself in a whole lot of trouble with the law. It is important to presume that anything you send or do online can be traced and made public so the safest approach to take is think twice before sending anything out there that may prove harmful to yourself or others.

If you would like to read through the report on how to recover snapchat messages and I suggest that you do the link can be accessed here. After reading this report maybe you might consider sending a snap to your friends just to let them know you have a code red situation and you need to meet up. For anyone who is to lazy to click on the link I have copied in the body of the report below.
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Methodology

We used two android devices to examine artifacts left behind by Snapchat. An account (rhickman1989) was created on a Samsung Galaxy Note 2, and pictures and videos were sent to another account (DeciphForensics). The receiving account was logged into on a Samsung Galaxy S3, when some of the images and videos were viewed, while others were not. We then acquired the phone using AccessData’s Mobile Phone Examiner+ version 5.2.1.499. After the acquisition was complete, the image was exported as an .AD1 image file, and then imported to AccessData’s Forensic Toolkit version 4.0.2.33.

After a brief examination of the contents, a different account (decipforensics2) was created on the Samsung Galaxy Note 2, and more pictures and videos were sent to the account on the Samsung Galaxy S3 (rhickman1989). This was to determine if there are identifiers for the sender account of a “snap.” The same acquisition process was followed again after the second batch of “snaps” were sent.

After another brief examination of the contents, pictures and videos were sent from the Samsung Galaxy S3 with the rhickman1989 account to both the DeciphForensics and DecipForensics2 accounts. The same acquisition process was followed again after sending these “snaps.”

All examination took place using AccessData’s Forensic Toolkit version 4.0.2.33.

Snapchat Structure

The majority of Snapchat data is stored within the data/data/com.snapchat.android folder. There are four folders within this directory, with two folders within the cache folder.

Examination of the Samsung Galaxy S3 revealed that within the shared_prefs folder are several XML files: CameraPreviewActivity.xml, com.google.android.gcm.xml, com.snapchat.android_preferences.xml, and SnapPreviewActivity.xml.

The com.snapchat.android_preferences.xml File

This file is where the majority of information stored by Snapchat is located. Within this file is a listing of all the contacts stored on the device. This is done with the permission allowed by the user for the application to read the contacts on the device.

Below the list of contacts is a listing of Snapchat messages. It appears that there is a set of fields stored for each message in Snapchat. The following are the fields stored in this section of the XML file: type, mSender, mWasViewed, mCaptionPosition, mCaptionOrientation, mIsLoading, mIsTimerRunning, mIsBeingViewed, MWasOpened, mWasScreenshotted, mDisplayTime, mId, mTimestamp, mStatus, mIcon, and mMediaType.

We sent only two pictures from the DecipForensics2 account, and one was viewed and expired. Within this XML file are two records that show the mSender field set to “decipforensics2.” Of those two records, one has the mWasOpened set to “true.” The author kept documentation as to which images were opened and allowed to expire and which are not, so it is known which image is tied to this record.

The mTimestamp field is stored in Epoch format. Upon conversion of this value, it showed the time that the image was either taken or viewed. Further research will need to be done to determine which it is, however, the time is within the timeframe of both being sent and viewed. Unfortunately, the author did this within a few minutes of each other and did not record the exact time sent.

The mId field for the picture shown to the left is “270518365528484358r.” The mTimestamp field in the same record is “1365528484358.” After converting the Epoch time format to readable format, the time stamp is for April 9, 2013 11:28:04 MDT. The similarities here will be address further in a later section of this paper

The received_image_snaps Folder

Within this folder were located every image sent to the DeciphForensics account on the Samsung Galaxy S3, including the images that had been viewed and were expired. There were some duplicate images with different names as well, the reason for this is unknown.

Android developers created a way for media files such as graphics to be stored on the phone for application use and function without being put into the Gallery application as an image to be viewed. The way that they did this was with .nomedia files. “If a directory has a file named .nomedia, then the media store will not scan and record the metadata of files in that directory” (Hoog, 2011).

Each of the images within the received_image_snaps folder had a .nomedia extension appended to the end of the file name. For example, the name of the file figure 3 is “h1a81hurcs00h1365528700423.jpg.nomedia”. This was likely done to prevent the images stored within this directory from being placed in the gallery or from being scanned by the media store. AccessData’s Forensic Toolkit recognized the .nomedia extension that was appended to the end of the file name and ignored it, displaying the images.

Correlations between the XML Records and the Image Names

There is a small correlation between records within the com.snapchat.android_preferences.xml file and the name of the image file stored in the received_image_snaps folder.

As shown above, there are three correlations between the name of the image, the mTimestamp value, and the mId value. While this is consistent with this image, it is not always consistent with all images. The section in blue is present in several of the other images, only with different numbers following to separate the image.

Conclusion

The author began this research in an attempt to answer several vital questions about the Snapchat application as it is stored and used on Android devices. The author has concluded that metadata is stored for Snapchat images, as shown by the com.snapchat.android_preferences.xml file, and that it contains metadata about expired “snaps” as well as unexpired “snaps,” and that images that are sent via Snapchat are indeed recoverable, and do not “disappear forever.”

Securing your android (the basics)

I have been asked a bit lately about securing android devices as I tend to focus on the apple side of things as I myself use the iPhone. There is a myth out there that android is inherently insecure and this really isn't true, android out of the box is pretty good its the user that make the device insecure. The real issue with android is anyone can make an app and upload it to their store they don't check first to see if you are a potential cyber criminal. I think from memory that at one stage in the past few years the top 5 apps in the android store were in fact trojan horses this might be wrong but I am pretty sure their is some truth their I need to go back and double check this. So to minimize the waffle you ask "what do I need to do to secure my android?" Well I have put together a number of steps that if followed will definitely help you get to a place where you can feel "secure".

1) Do not save all of your passwords in your device! I don't know why I need to say this but people naturally tend to save their passwords for easy access of whatever the reason on their devices. This is a very bad practice and you should avoid this, think of memorizing your passwords of a way to delaying Alzheimer's and not getting ripped off by cyber criminals.

2) Use your devices inbuilt security features, If you are running on Jelly Bean, you can have a screen lock and encryption enabled to further enhance your security. Use these features they will help you keep your device safe.

3) Androids allow you to lock your apps you should use this feature especially for apps that hold sensitive information. Their is a free app that you can download to enable this feature called App Lock.

4) If you are installing an app read what permissions the app want's!!! If you are downloading some recipe app it doesn't need access to your camera, microphone and contacts. This should be common sense but for some reason people download apps and click ok to everything.

5)  Download a mobile security app, androids are very much open to virus's and malware in comparison to their i0S counterparts. An app I think is pretty good is avast!mobile security.

6) One of the most important things you can do to secure your android is secure your network. I know you wont listen but try to avoid using public networks. You can protect your information by using apps like Hideninja VPN so that your outgoing connection is always encrypted, making it harder for anyone to sabotage your data. If you suspect that your device is being attacked, WiFi Protector can help fend off these attackers. To further enhance your network security you can apply settings from SecDroid but note that this app is only for rooted phones.

Protecting Windows 10 (The Basics)

Over the past few months Microsoft have been firing out their new operating system Windows 10 to the world for free. This blog is more aimed at anyone who is just after installing the operating system as chances are if you are a windows user you may have already upgraded or will be doing so in the near future. Like most things that come fresh out of the box to make them work to a level you might expect takes some tweaking. I am going to focus on a few basic steps you should take right away to make your new operating system secure.

1) Run the windows update straight away, I know you may have spend an hour or two installing the dam thing but running windows update will make sure your operating system has the latest patches. To find windows update just click the little search bar at the bottom of your screen and type "windows update" once opened just hit "check for updates" and your done.

2) System restore is turned off by default in Windows 10 so you might want to turn this on. Microsoft have renamed this function as "system protection" so to turn this on head back down to the little search bar and type "This PC" when the logo appears right click on it and select "Properties" click on "system protection" then click "Configure" and turn system protection on.

3) Check your Windows 10 privacy setting by default everything and I mean everything in here is turned on. To get here you go to START > Settings> Privacy spend a bit of time looking over this and make sure you are happy with it.

4) Make sure that all of your applications are updated in an earlier post I mentioned that Secunia PSI was a good application to check this.

5) Make sure you have your anti-virus turned on if you don't have an anti-virus Windows has a build in AV called Windows Defender. You can find Defender by going to the search bar and typing "Windows Defender".

Steps to take after the Vtech Hack

In the last week the figures released from toymaker VTech surrounding the massive hack they have suffered is startling. The worst part about this hack is it shows that children are not immune to cyber crime. It is important to first realise the scale of this attack and just how many children have been affected worldwide. Below are statistics detailing how many individuals data has been leaked and in what countries along with if the data was that of an adult or a child. As you can see from the statistics below I have highlighted Ireland, the only reason for this is that I am Irish.

Country                         Parent Accounts                             Child Profiles

United States                  2,212,863                                             2,894,091

France                             868,650                                                1,173,497

United Kingdom             560,487                                                727,155

Germany                         390,985                                                508,806

Canada                            237,949                                                316,482

Others                             168,394                                                223,943

Spain                               115,155                                                138,847

Belgium                          102,119                                                133,179

Netherlands                    100,828                                                124,730

Republic of Ireland      40,244                                                  55,102

Latin America                28,105                                                  36,716

Australia                        18,151                                                   23,096

Denmark                        4,504                                                     5,547

Luxembourg                  4,190                                                     5,014

New Zealand                 1,585                                                     2,304

What I find the most frighting about all of this is that a particular VTech service known as Kid Connect was hacked and the information stolen. You may ask why is this frighting and I am going to explain why. Kid Connect is set-up to allow parents and their kids to communicate. That information includes kids head-shots and chat logs between parents and children. Most, if not all, of these cases, the logs, pictures, and recordings can be traced back to specific usernames, allowing anyone in possession of the hacked data to identify the people chatting as well as those in the pictures.

This may lead to a lot more unforeseen problems down the road but as it stands is just a very uncomfortable situation for parents to be in, and yet again starkly highlights the dangers for children in the digital age.

If you have been affected by this attack you might want to know what steps do you need to take now.

Luckily for you its coming up to Christmas so the VTech spin doctors are in full flight trying to somehow roll out reassuring and efficient damage control to save what's left of the companies reputation. In response to the attacks they have posted a very detailed breakdown of all of the events and the VTech response that can be found here. If you just want the main points I have pulled them out and you can find the below. 

What kind of information are stored in the database?

Parent account information including name, email address, secret question and answer for password retrieval, IP address, mailing address, download history and encrypted password.
Kids profiles include name, genders and birthdates.
Encrypted Learning Lodge’s contents including, Kid Connect’s profile photos, undelivered Kid Connect messages, bulletin board postings and Learning Lodge content (ebooks, apps, games etc).
Download sales report logs.
Progress logs to track kids games, for parents’ reference.
It does not contain any credit card information. VTech does not process nor store any customer credit card data on the Learning Lodge website. To complete the payment or check-out process of any downloads made on the Learning Lodge website, our customers are directed to a secure, third party payment gateway.
It does not contain any personal identification data (such as ID card numbers, Social Security numbers or driving license numbers).

Was any credit card information stolen?

No, our Learning Lodge website database does not contain any credit card information and VTech does not process or store any customer credit card data on the Learning Lodge website. To complete the payment or check-out process of any downloads made on the Learning Lodge website, our customers are directed to a secure, third party payment gateway.

Why do you need this customer information?

Learning Lodge allows our customers to download apps, learning games, e-books and other educational content to their VTech products. Customers need to set up an account for such transactions. The information is used to identify the customer and track their downloads. As customer safety and privacy are of utmost importance to us, we are making all necessary adjustments to our system security, which will include only storing such information as is required for our customers to download and enjoy our services. All other information will be deleted from our servers.

Is there anything I can do to better protect myself?

Whilst all personal customer passwords are encrypted, even encrypted data can be susceptible to skilled hackers, so we are advising you to immediately change your passwords on any other sites that may use the same email, secret question and answer, and password combination.

What is VTech doing to protect data stored on Kid Connect?

The Kid Connect service has been temporarily suspended. We are reviewing our security protocols and will delete all unsent messages before we restart the service.

How can I change my password or delete my Learning Lodge account and personal data stored on your servers?

As an precautionary measure, we have temporarily suspended Learning Lodge and Kid Connect service along with a number of other websites to conduct a thorough security assessment and whilst we implement additional security protocols. We will advise our customers of further action when the websites are ready to be reactivated.

When can we expect that Learning Lodge will be online again? Should I then register again?

We are working as fast as possible to resume our service. We will advise our customers of further action when the websites are ready to be reactivated.

Is it safe for my kids to play with the toys with Learning Lodge app? Could the hacker reach my kids through the devices, trace their activity or location?

Our investigation to date suggests the breach is on the server, not on the device itself. There is no evidence to suggest the toys are not safe at this time. We will continue to investigate and share more information as it becomes available.

Has there been any customer data found leaked on the internet?

We have no evidence that any of the data has been used or distributed criminally. Whilst all personal customer passwords are encrypted, even encrypted data can be susceptible to skilled hackers, so we are advising you to immediately change your passwords on any other sites that may use the same email, secret question and answer, and password combination.

Securing your iPhone 5 +

As the title suggests for this post I am just focusing on the iPhone 5 and up. For the most part Apple are pretty slick when it comes to patching their devices and keeping things secure, however a lot of the features of the iPhone that may make your life a bit easier may also create an area of insecurity around your device. Lets take siri for example, shes great to have a chat with on cold nights when there is no one else around. The issue with siri is she's a bit of a gossip and will talk to anyone. Let's take the following scenario your phone is stolen, you have a lock code on it so even though your pissed your not going to panic just yet. Lets say who ever stole your device has been watching you and they want to find out where you live, they cant do that right? WRONG if you have spent a bit of time setting siri up chances are she can be accessed from the lock screen of your phone, so all our thief/stalker needs to do is ask siri a few simple questions.


Who am I?

Where do I live?

What are my upcoming appointments?


Try this yourself see what information you get back....


Am I starting to paint a picture of how this can all go wrong so fast..... Hold on just before we start to panic I have created a list of 10 things you can do to help protect yourself and your family. Of course you can completely ignore my list and keep living life on the edge if that's your thing :).

1) Disable Siri on a lock screen

Go to “Settings” –> “Passcode” (or “Touch ID and passcode”) –> “Allow access when locked” section –> “Siri: off” and “Settings” –> “General” –> “Siri” –> “Allow “Hey Siri”: off”.

2) Use a strong password instead of a 4 digit code

This is important I cant stress enough, how simple it has become to smash out your 4 digit passcode in a few hours. You might think who the hell would bother doing that I'm not some Government spy no your not but you do have lots of juicy personal data in their that can be used to steal your identity or exploits your friends and family. As an extra option, you can also turn the “erase data” feature on, so the device will wipe everything from its memory after 10 failed passcode attempts. But keep in mind that all the data will be erased forever and you won’t be able to recover it i.e DON'T FORGOT YOUR PASSWORD!!!!!

Where can you set these requirements? Go to “Settings” –> “Passcode” (or “Touch ID and passcode”) –> “Require passcode: immediately”; “Simple passcode: off”.

3) Turn off lock screen notifications

This is similar to the stalker/possible killer type scenario or just the nosy work colleague keep your shit private! The more information you allow to your screen the more exposed you are, you may not think that matters until you are sitting in the pub and your friend sends you a message to ask: "is that asshole Dave there?", and you can then respond saying "yup hes here and by the way he read the message cause I let my phone display everything to the screen.... sorry plus Dave said he wants the €50 he lent you back!".... Maybe that's exaggerated but don't take any chances.

Where can you set these requirements? Go to “Settings” –> “Passcode” (or “Touch ID and passcode”) –> “Allow access when locked” section.

4) Turn on two-step verification for Apple ID and iCloud

This is a big one, in my opinion it will only be a matter of time before every device that requires a log in will force people to use two-step verification, but just in case I'm wrong you should set it up anyway. Apple makes you wait a few days before you can actually set this up so if you start the process don't forget to log back in and finish it off after.. 3 days I think.

Where can you set these requirements? Go to https://appleid.apple.com –> “Manage your Apple ID” –> “Password and Security” –> “Two-Step Verification”.

5) Turn off automatic sync to iCloud

This is one of those things that could really come back and bite you in the ass literally! If you have iCloud set up you have 3G/4G or wifi and you take a picture boom its in the cloud... FOREVER!!! So I don't know but I'm guessing after a crazy night out you may want to review what picture leave your phone and head off to god knows where.

Where can you set these requirements? Go to “Settings” –> “iCloud”.

6) Turn off cookies in your browsers

Your now thinking "cookies" what the hell is this guy on about there is no "cookies" in my phone, I can't dip this thing in tea! No you cant and please don't try your phone won't taste great it will just stop working. Cookies are small files which almost any website generates and leaves on your device. They may contain some information about you, your computer or smartphone, and your preferences. It helps websites keep you logged in, or to show you some relevant content including ads, but in some cases they may be very helpful to cybercriminals as they can contain credentials and other sensitive data. The only issue here is some site just wont work when you disable this so its one of those catch 22 situations.

Where can you set these requirements? For Safari: Go to “Settings” –> “Safari” –> “Privacy & Security” section –> “Do Not Track: on”, “Block Cookies: Always Block”; For third party browsers: see similar browser settings.

7) Don’t let apps access your contacts, photos, messages and other private data

This is one of my pet hates, when I download an app for getting dinner recipes why the hell does it want access to my contacts, my camera and my microphone???? And secondly why would anyone allow it access to any of these things? This really is one that you should spend a bit of time looking into.

Where can you set these requirements? Go to “Settings” –> “Privacy”.

8) Turn off the AutoFill option in your browsers

This is another of those be less lazy common sense type things, if this feature is turned on and someone gets your phone chances are they will be able to log into a number of sites..As you!

Where can you set these requirements? For Safari: Go to “Settings” –> “Safari” –> “General” section –> “Passwords & AutoFill”; For third party browsers: see similar browser settings.

9)Discard automatic WiFi connections to known networks

I don't like this feature at all, and I'm going to tell you why. By having this enabled your phone will not only automatically connected to any wifi network that you logged onto before, but it will also log onto any network with the same SSID (name) of a network that you logged on before. This is dangerous, think of shopping areas that offer public wifi (which of course you wouldn't use because your smarter than that) most of these networks have the same name a common one in Ireland is "eircom". Therefore your phone will automatically connect to these networking if you ever connected to one of that name before, so I really shouldn't have to explain why this can be a fruitful play ground for a cybercriminal.

Where can you set these requirements? Go to “Settings” –> “Wi-Fi” –> “Ask to join networks: on”.

10) Get used to VPN

A VPN or virtual private network is the best way to go to really ensure some safety when browsing the web especially on those public wireless networks that you would never use. There is also no point going for a free VPN as the speeds and reliability and all that other stuff that you don't really understand wont be great. You can make up your own mind on who to go with for this I use AirVPN they charge around €30 for 6 months with unlimited bandwidth.






So guys, that's it for today if anyone has any questions post them below and I guarantee to get back to you within one working year.