News

Bad Rabbit Ransomware

Computer Culture Admin - Thursday, November 16, 2017
Hacked
Organizations in Russia, Ukraine and a few hours later also the U.S. are under siege from Bad Rabbit, a new strain of ransomware with similarities to NotPetya.

The outbreak appears to have started via files on hacked Russian media websites, using the popular social engineering trick of pretending to be an Adobe Flash installer. The ransomware demands a payment of 0.05 bitcoin, or about $275, from its victim, though it isn’t clear whether paying the ransom unlocks a computer’s files. You have just 40 hours to pay.

Bad Rabbit shares some of the same code as the Petya virus that caused major disruptions to global corporations in June this year, said Liam O’Murchu, a researcher with the antivirus vendor Symantec Corp.

Based on analysis by ESET, Emsisoft, and Fox-IT, Bad Rabbit uses Mimikatz to extract credentials from the local computer's memory, and along with a list of hard-coded credentials, it tries to access servers and workstations on the same network via SMB and WebDAV.

The hardcoded creds are hidden inside the code and include predictable usernames such as root, guest and administrator, and passwords straight out of a worst passwords list. (Note to Self: all user passwords need to be strong, step all employees through a strong password training module ASAP.)

As for Bad Rabbit, the ransomware is a so-called disk coder, like Petya and NotPetya. Bad Rabbit first encrypts files on the user's computer and then replaces the MBR (Master Boot Record).

Check Your Home Network

Computer Culture Admin - Thursday, November 16, 2017
HP Bitdefender, the home version of our managed antivirus has developed a home network scanner to enable you to check for any dodgy devices on your network, it’s available as a free download.

Bitdefender Home Scanner lets you see all devices connected to your home network. You get an alert every time an unknown device connects to your wi-fi. Which means you can instantly boot out freeloaders and prevent connection slowdowns.

Home Scanner looks for weak passwords, as well as vulnerable or poorly encrypted communications. It correlates the information gathered from your connected devices with online vulnerability databases and gives you a thorough report so you can ensure maximum security for your network.

For more information go to Bitdefenders website here.

How to Remove Cookies

Computer Culture Admin - Thursday, November 16, 2017
Hacked
On a PC or mobile device cookies can compromise your privacy, and fill up your storage. If you’re concerned about what websites are leaving behind, and how advertisers are accessing that data, here are some instructions on how to clear cookies from the latest version of your favourite web browser.

So what are cookies?
Cookies are small text files written by a web browser that contain information about your interaction with one specific site. They include information such as what you put into a virtual shopping cart, your username for logging into the site (not the password), products you viewed during your last visit, and any other information that could be used to tailor the visit just for your needs.

Typically, cookies pose no threat to your computer. But many cookies can compromise your privacy. That’s because advertising companies are prone to embedding cookies with web advertisements, allowing them to easily track your browsing history, and tailor ads toward your individual habits across multiple sites.

Cookies don’t take up much space on your hard drive. In fact, they’re extremely small, and should only be a concern for mobile devices with small amounts of storage. For instance, even without clearing the cookies in Chrome on PC for many, many months, we’ve only accumulated around 4MB worth of cookies. That said, the amount of volume they use isn’t troublesome; it’s the privacy risks that are difficult to ignore.

Google Chrome
Google Chrome lets you easily delete cookies, control browsing data, and specify what sort of files Google Chrome should accept or block. Here’s how:

Access content settings: Click on the “Menu” tab in the upper-right corner, and select “Settings.” Once the new tab opens, scroll to the bottom of the page and click on “Advanced.” This will expand the “Settings” page to include additional options.

The first expanded window you should see is the “Privacy and security” panel. Next, click on “Content settings,” and then select “Cookies.”

You may also simply type “chrome://settings/content/cookies” into your address bar, and Chrome will take you to your intended destination.

Cookie juggling: On the “Cookies” panel, you will see three toggles: allow sites to save and read cookie data (recommended), keep local data only until you exit Chrome, and block third-party cookies. This third option means advertisements won’t be able to read cookie data provided by a parent website, preventing them from using that information across multiple sites.

Smashing cookies: Google also provides options to block specific sites from leaving cookies, to allow specific sites to leave cookies, and to clear cookies left behind by specific websites when exiting Chrome. If you want to delete it all, click on the “Remove All” button, and you will be cookie-free. You can delete cookies individually, too.

For Android, iOS: Access Chrome’s menu, go to “Settings,” and then find the “Privacy” tab under “Advanced” settings. From there, select “Clear Browsing Data” at the bottom, and check “Clear cookies and site data.” There are also options for clearing your browser history, and removing space-eating cached images and files.

Mozilla Firefox
Access custom settings: Click on the “Menu” three-lined icon in the top-right corner. In the drop-down menu, select “Options,” which will open a new “Preferences” tab. On this page, select “Privacy” listed on the menu to the left, and then head to the “History” section. Here you will need to choose “Use custom settings for history” in the drop-down menu located next to “Firefox will…”

Cookie juggling: With the advanced history settings enabled, you should see an option to toggle on/off “Accept cookies from sites.” To the right, Mozilla provides an “Exceptions” button where you can control the cookie flow. These include blocking or allowing cookies from specific sites, and allowing a cookie from a specific site for only one browsing session. This is done by inserting the address of the website.

Next, you have the ability to accept or deny third-party cookies, or accept third-party cookies from sites you already visited.

Smashing cookies: To manually delete cookies in Firefox, you’ll need to hit the “Show Cookies” button. A window appears with a search field for locating a specific cookie, and a list of all cookies stored on your device. You can hit the “Remove Selected” button to delete a highlighted cookie, or hit the “Remove All” button to delete all the cookies.

Firefox (iOS): Tap the New Tab button (top right, with the number in it). Now tap the cog button in the top left of the screen. Scroll down to “Clear private data.” On the next screen, make sure “Cookies” is selected, then tap “Clear Private Data.”

Time Saving Android Tips

Computer Culture Admin - Thursday, November 16, 2017
Hacked 1. Snap between apps
Cut out delays in toggling between apps by putting Android's semi-secret fast-snap function to use. If your device runs Android 7.0 or higher, double-tap the Overview key — the square-shaped icon next to the Back and Home buttons — and you'll find yourself flipping between your two most recently used apps faster. It'll even work from your home screen for a zippy return to whatever process you had open last.

2. Slide into Quick Settings
Android's Quick Settings panel is a shortcut in and of itself — a single place with one-tap toggles to some of your device's most commonly used functions, from Bluetooth to the flashlight (and even more, if you know how to expand it).
To get a shortcut to this mecca: Just swipe down from the top of your screen with two fingers (any two — swiper's choice!). That'll skip past the standard notification panel and take you directly to the fully expanded Quick Settings section.

3. Open menus like a pro
Not many folks know it, but there's a faster way to open those three-dot overflow menus in a lot of apps.
Rather than tapping the icon to load the menu and then tapping the item you want, simply swipe downward on the icon and move your finger directly to your item of choice — without ever lifting your finger from the screen. The menu will appear as you swipe, and whatever item your finger is touching when you let go will be activated.

4. Stop disturbances without the fuss
Sometimes you need to silence your phone quickly and discreetly. Whenever that time comes, don't mess with on-screen menus and icons; just activate your phone's display, then press the device's volume-down key until the ringer volume goes all the way down.
That'll put your phone into vibrate-only mode, and you should feel a brief vibration to let you know you're there. If you want to take it a step further and go into Android's full do-not-disturb mode, in which nothing but an alarm will cause your phone to sound — assuming your phone is running 2015's Android 6.0 (Marshmallow) or higher — release the volume-down button and then press it one more time. (You'll see the confirmation of the mode change on your screen.)
Whenever you're ready to return to a normal state, simply activate your device's screen and press the volume-up button until the level lands wherever you like.

5. Refresh the web with ease
Say you're looking at a web page in Chrome. For one reason or another, you realize you need to refresh the page. What do you do?
Sure, you could open the Chrome menu and then select the refresh icon. Or you could skip a step and just swipe downward from anywhere on the page. You'll see a circular refresh symbol appear at the top of the screen as you swipe. Make sure you pull down until the arrow within the symbol turns blue, then let go. (Once you get used to the gesture, you'll find that a quick downward flick is all it really takes.)

6. Force a restart
No technology is foolproof. If your Android device ever isn't responding, press its power and volume-up buttons at the same time — even if the display is off — and hold them down together for 10 to 15 seconds. Unless something really disastrous is going on (or your battery's just dead), that'll force your phone to restart, regardless of what you were last doing.

7. Get to your camera in a flash
When a photogenic moment arises two seconds can be the difference between an unforgettable snapshot and an after-the-fact image. So don't futz around with unlocking your phone and looking for the on-screen camera icon; instead, just double-tap the device's power button to jump straight into shooting, whether your display is on or not.
That shortcut works on many popular Android phones, including Google's Pixel and Nexus devices, Samsung's most recent Galaxy gadgets (on pre-2017 models, use the physical Home button instead of the power button) and HTC's latest handsets. LG phones tend to shift the shortcut to the volume-down button, meanwhile, while Motorola phones use a double-twist motion to achieve the same effect.

8. Put notifications on notice
Next time you get an annoying notification, don't scream out in frustration. Press and hold the notification in question to hop over to some helpful advanced settings. They'll let you control exactly when and how that app is able to alert you.

9. Wake your screen with two taps
If you have a Pixel, a Galaxy S8 or Note 8 or a recent LG or HTC device, there's a decent chance your device supports a super-speedy way of waking the screen: Tap your finger on it twice. That's it! With the Samsung devices, you have to tap specifically on the always-on Home button at the bottom of the display; with the others, you can tap anywhere on the screen's surface.
(Note that on some of these devices, you may have to manually enable a "double-tap to wake" option before this'll work. Look in the Display section of your system settings to find it.)

10. Send a friendly rejection
When you get a phone call you can't or maybe just don't want to answer, look toward the bottom of the screen for a message icon or a "Send message" option.
Slide your finger up from that area, and you'll be presented with a list of ready-made rejection messages you can send to the caller while simultaneously declining his call.

11. End calls with ease
When you do talk on your phone, finding the on-screen button to end a call isn't always convenient. But Android actually has an easier way — if you know where to find it.
Open up the Accessibility section of your system settings, then activate the option labeled "Power button ends call." Now, when you're ready to say farewell, just tap your phone's power button and bask in your shortcut-aided efficiency.

Back to Top