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Posts Tagged ‘Avast Mobile Security’
February 5th, 2015

How to turn off Avast Mobile Security’s Anti-Theft Siren

Avast Mobile Security includes many handy anti-theft features that can help you locate your stolen or lost phone. You can wipe it remotely, it informs you if your SIM card has been stolen, and even allows you take pictures of the person who took your phone. Another cool feature of Avast Anti-Theft is the siren. I decided to test the siren with my friend, who had just downloaded Avast Mobile Security, to see how it could affect a phone thief.

 What does the Avast Anti-Theft siren do?

The Avast AScreen Shot 2015-01-27 at 11.49.44nti-Theft siren was developed by the Avast mobile team to be activated when you either lose your phone (even if it is misplaced in your room and on silent) or if it gets stolen. The siren continuously and loudly says the following, by default, when activated: “This device has been lost or stolen!”. In the advanced settings of Avast Mobile Security you can customize what message the siren will sound, if you do not want to use the pre-set message. You can do this under “Select Sound File” or “Record Siren Sound”.

The siren is designed to frighten phone thieves, or to warn people surrounding the thief that the phone might be in the hands of the wrong person. When the first siren cycle began, we tried to turn down the volume. However, the alarm would begin again at the loudest possible volume. We then decided to see what would happen if we took out the battery, this stopped the siren of course, but as soon as we put the battery back in, the siren started to go off again. To say the least, we agreed that it would effectively frustrate and annoy a thief too.

How to turn off the siren

After a minute of testing the app, we decided to turn off the siren using one of these two possible methods:

MyAvast: You can control your phone remotely via your MyAvast account. In your MyAvast account you can keep track of all your devices that have Avast products installed on them. From within your MyAvast account you send numerous Anti-Theft commands to your phone, including activating and deactivating the Anti-Theft siren. Once you are logged into your MyAvast account click on the name of the mobile device you want to control and then click on the siren symbol. From there you can send a command to turn the siren on and off.

SMS command: Using the Avast PIN you set up when you downloaded Avast Mobile Security, you can send SMS commands to your phone to remotely control it. To turn the siren off, text your Avast PIN followed by “SIREN OFF” to your phone.

Screen Shot 2015-01-27 at 11.46.02

You can read more about how to set up your smartphone for remote control here on our blog and you can find a full list of the Anti-Theft controls on our website.

Have fun checking out Avast Mobile Security’s cool and handy Anti-Theft features, but, please, use caution when testing the siren :)

February 3rd, 2015

Apps on Google Play Pose As Games and Infect Millions of Users with Adware

A couple of days ago, a user posted a comment on our forum regarding apps harboring adware that can be found on Google Play. This didn’t seem like anything spectacular at the beginning, but once I took a closer look it turned out that this malware was a bit bigger than I initially thought. First of all, the apps are on Google Play, meaning that they have a huge target audience – in English speaking and other language regions as well. Second, the apps were already downloaded by millions of users and third, I was surprised that the adware lead to some legitimate companies.

Durak App Google Play The Durak card game app was the most widespread of the malicious apps with 5 – 10 million installations according to Google Play.

Durak interface
When you install Durak, it seems to be a completely normal and well working gaming app. This was the same for the other apps, which included an IQ test and a history app. This impression remains until you reboot your device and wait for a couple of days. After a week, you might start to feel there is something wrong with your device. Some of the apps wait up to 30 days until they show their true colors. After 30 days, I guess not many people would know which app is causing abnormal behavior on their phone, right? :)

Threats detected malcious appsEach time you unlock your device an ad is presented to you, warning you about a problem, e.g. that your device is infected, out of date or full of porn. This, of course, is a complete lie. You are then asked to take action, however, if you approve you get re-directed to harmful threats on fake pages, like dubious app stores and apps that attempt to send premium SMS behind your back or to apps that simply collect too much of your data for comfort while offering you no additional value.

An even bigger surprise was that users were sometimes directed to security apps on Google Play. These security apps are, of course, harmless, but would security providers really want to promote their apps via adware? Even if you install the security apps, the undesirable ads popping up on your phone don‘t stop. This kind of threat can be considered good social engineering. Most people won‘t be able to find the source of the problem and will face fake ads each time they unlock their device. I believe that most people will trust that there is a problem that can be solved with one of the apps advertised “solutions” and will follow the recommended steps, which may lead to an investment into unwanted apps from untrusted sources.

Avast Mobile Premium detects these apps, protecting its users from the annoying adware. Additionally, the apps’ descriptions should make users skeptical about the legitimacy of the apps.  Both in English and in other languages such as German, were written poorly: “A card game called ‘Durak‘ – one of the most common and well known game“.

The apps‘ secure hash algorithm (SHA256) is the following: BDFBF9DE49E71331FFDFD04839B2B0810802F8C8BB9BE93B5A7E370958762836 9502DFC2D14C962CF1A1A9CDF01BD56416E60DAFC088BC54C177096D033410ED FCF88C8268A7AC97BF10C323EB2828E2025FEEA13CDC6554770E7591CDED462D

January 16th, 2015

Guess what’s here? Here again? A new version of Avast Mobile Security is here, tell a friend!

In November, we called on our awesome advanced mobile beta testers to test the latest version of Avast Mobile Security. We listened to their feedback carefully and are proud to announce that the latest version of Avast Mobile Security is now available to everyone!


What’s new in Avast Mobile Security?

First and foremost, we have completely redesigned the virus scanner, making it faster than ever (up to 50% faster!). Then we improved support for Intel-based devices, optimizing the virus scanner for the best performance possible.

Finally, we added a referral program, so you can recommend Avast Mobile Security to your friends and family. Not only can you recommend the best mobile security app available on Google Play, but you will be rewarded for doing so; you can earn up to three months of Avast Mobile Premium for free!

Here is how it works: For every five friends you send an SMS to recommending Avast, you get one free month of Avast Mobile Premium.

In summary:

 The new features in Avast Mobile Security are:

  • A redesigned and faster than ever virus scanner (50% faster!)
  • Improved support for Intel-based devices
  • An awesome new referral program that rewards you for spreading the word about Avast Mobile Security!

How can I get the latest version of Avast Mobile Security?

If you don’t already have Avast Mobile Security, what are you waiting for?! Download it on Google Play now! Already have Avast Mobile Security? If you have enabled automatic updates in your Google Play settings, you are all set :) If you don’t have automatic updates enabled in your Google Play settings, you can visit our app on Google Play and upgrade manually!

Have fun using Avast Mobile Security – we look forward to hearing your feedback!

We would like to extend a special thanks to our beta testers, your feedback plays an extremely important role in developing our products!

Avast Software’s security applications for PC, Mac, and Android are trusted by more than 200-million people and businesses. Please follow us on FacebookTwitter and Google+.


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January 13th, 2015

What to do before your smart phone is lost

Avast Anti-theft tracks lost phones remotelyBe prepared.

That’s good advice for hosting a Super Bowl party, going to a job interview, or if you lose your phone.

Not being prepared could prove disastrous in all three of those examples, but most people would agree that losing their phone with all the contacts, text messages, photos, and other irreplaceable data is worse than forgetting the Doritos or not answering an interview question well.

If you happen to lose your Android smart phone or tablet, or if someone steals it from you, do not despair. Our clever, FREE app, Avast Anti-theft, will help you find your phone and even, catch the thief.antitheft infographic

What is Avast Anti-Theft?


Avast Anti-Theft is a free standalone application designed for Android smart phones and tablets. It’s main purpose is to help you locate your lost or stolen mobile device, allowing you to track it on a map and control it remotely. Since Anti-Theft is a separate application from Avast Mobile Security & Antivirus, it is completely invisible when it is running so that thieves don’t even know it’s there.

This infographic explains what you can do with your phone if you discover that it’s missing.


Locate your device on a map

Remotely locate your phone via GPS, Wi-Fi, or mobile network – for maximum accuracy.


Remotely lock your phone

Remotely lock your phone to prevent access to your personal data and settings.


Activate a siren remotely

Activate a loud, customizable siren, which reverts to maximum volume if thieves try to silence it.


If you spring for the paid version of Avast Anti-Theft, you get some additional, powerful features.


Take a photo of a would-be thief

You can set your device to lock access and take a picture of the person attempting to unlock it after three failed tries.


Remote data retrieval from your device

Retrieve call logs, SMS messages, and other personal data from your phone.

Avast Anti-Theft is available on Google Play, where it can be downloaded for free.

December 3rd, 2014

Is backing up your data the same as exposing it? In this case – Yes!

Losing contacts from your mobile phone is highly inconvenient. There’s seems to be a solution -  You can find them online! The catch? Your contacts are in a publicly accessible place.

1playstore photo


If you care for your privacy you should always be suspicious about “Cloud Backup” solutions you find in the Google Play Store. The solution that is being analyzed here backs up your personal contacts online. In public.

Upon starting the application, you will find a screen where you can put your mobile number and a password of your choice. Then you can upload your contacts in the cloud.


A brief analysis inside this application shows us how exactly it backs up your contacts in the cloud. The contacts are associated with the phone number that you have given in the previous step and they are sent through HTTP POST requests in a PHP page.


Further analysis through IP traffic capturing with Fiddler helped usdiscover the results in the pictures above; a page located online, for anyone to see, that contains thousands of un-encrypted entries of phone numbers and passwords. Using the info in the app you can retrieve personal private data (contacts) from another user.

4fiddlerinfo 5datafromserver

We found log in data inside those entries from countries like Greece, Brazil, and others

The Play Store page says that this app has been installed 50.000-100.000 times. This is a big number of installations for an application that doesn’t deliver the basic secure Android coding practices. The developer must use technologies like HTTPS, SSL and encryption on the data that are transferred through the web and stored in the server. Nogotofail is a useful network security testing tool designed by Google to “to help developers and security researchers spot and fix weak TLS/SSL connections and sensitive cleartext traffic on devices and applications in a flexible, scalable, powerful way.

6appinfoplaystore The application has been reported to Google without receiving any response.

Avast detects it as Android:DataExposed-B [PUP].

Samples (SHA-256):

F51803FD98C727F93E502C13C9A5FD759031CD2A5B5EF8FE71211A0AE7DEC78C 199DD6F3B452247FBCC7B467CB88C6B0486194BD3BA01586355BC32EFFE37FAB

August 14th, 2014

Calling advanced Android users: Join the avast! Mobile Security Beta test!

Would you like a sneak-peek into our new version of avast! Mobile Security before the official product release? The opportunity is here.  We are looking for advanced Android users to participate in the avast! Mobile Security Beta test. This Beta test will run until August 31, so you have plenty of time to test everything. Your valuable feedback will be incorporated into our product before going public to millions of users, so your participation is vital.

Help our development team by being  part of the beta testing team. We need your input! :)

avast! Mobile Security beta testing

Android beta testers are vital to the success of avast! Mobile Security. Join the team!

Here’s how to join the avast! Mobile Security Beta test:

What we expect from you?

  • Provide us with your feedback on the new interface, with a special focus on graphical issues and issues with translations
  • Report all potential bugs you find, preferably with print screens
  • Give us your suggestions for improvements, additional features, and solutions

Where you can submit your feedback?

Every active participant who provides feedback will receive a 1-year avast! Mobile Premium license.

The new interface has already received praised from beta testers. We want to hear from you. Join the Google+ Mobile Security beta testers community now.

Thank you for using avast! Antivirus and recommending us to your friends and family. For all the latest news, fun and contest information, please follow us on FacebookTwitterGoogle+ andInstagram. Business owners – check out our business products.

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August 13th, 2014

avast! Mobile Security named Tabby Awards Winner and Users’ Choice

Tabby users_choice-2014 (2)The public has spoken! One hundred thousand votes were cast and avast! Mobile Security & Antivirus was declared the Winner and Users’ Choice pick for the best Utilities and Tools for Android devices.

The international panel of independent judges wrote about avast! Mobile Security, “One of the best security apps for tablets. Setup is quick and easy. UI is refreshing and simple yet functional. Capabilities and ease of use are outstanding. Very solid. This application is the complete mobile security package.”

The crowning achievement for the developers of avast! Mobile Security is the Users’ Choice award, given by real app users. In June and July, app users voted on the site for their favorite app among panel-selected finalists in each category. The full list of Winners, Users’ Choice and Finalists, with links to download them, is available at

You ain’t seen nothing yet

The judges and users thought that the current version of avast! Mobile Security has a “refreshing” and “simple yet functional” user interface.  Well, it’s about to get even better!

Android Power Users: Join us as a beta tester and provide feedback on the new, improved avast! Mobile Security user interface. Visit the avast! Google+ page to join the beta community and learn how you can earn a free 1-year license for avast! Mobile Premium.

Thank you for using avast! Antivirus and recommending us to your friends and family. For all the latest news, fun and contest information, please follow us on FacebookTwitterGoogle+ andInstagram. Business owners – check out our business products.

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July 2nd, 2014

How to prevent unnecessary costs of AVAST SMS notifications when replacing your SIM card

avast! Anti-Theft is a separate program included in the avast! Free Mobile Security appYou can install it at the same time as avast! Mobile Security, or later, during a separate installation. Its unique capabilities help you recover your phone by controlling it remotely with SMS commands or via the Internet by logging in to your AVAST account. The app can also notify you that your SIM card was removed, in case the device was stolen. All that will help you to control and locate your lost or stolen smartphone. Since its release, we have received many messages from all around the world, proving that avast! Anti-Theft has helped many users find their missing devices. A dramatic story with happy end came to us from the Humayuns brothers. They were attacked at a Pakistani market. Their smartphone was stolen during the attack. Luckily they were able to catch the thief using avast! Anti-Theft. Stories from the open road have also come our way from motorbike AVAST fan DuckyBoy and truck driver Steven B., who used AVAST to track their missing smartphones lost on the roads of USAWe even received a detective-like story from sisters Katharina and Nicole. Nicole’s phone was stolen during the trip to Vietnam, AVAST notified her sister Katharina that her SIM card had been changed and provided her with the phone’s new number. Using this information the girls successfully tracked down the stolen device (with a little help from Vietnamese authorities). Last but not least avast! Anti-theft managed to locate a phone that was lost for a year and a half, it traveled a great distance within Africa before it was found!



However, we have also spotted questions from users who were surprised by the “extra charges for the SMS notifications”. Some thought the charges came from AVAST. Let’s clarify this functionality and explain, why mobile operators can charge you for SMS notifications sent from the avast! Anti-theft app.

Why is it happening and how to prevent unexpected costs?

Read more…

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June 18th, 2014

Google Play Store changes opens door to cybercrooks

mobile appsLast week, Google upgraded the Android app section of its store and introduced a new way for users to manage permissions. Google claims it will be easier  for users to understand and that users will pay more attention to app permissions. The new interface has a cleaner look and the common user can now install apps more quickly. But does this simplicity come with a price?

Android controls the security and the amount of access every app is granted by using “permissions”. Each action has to ask the operating system for permission to take a new action. In older versions, when an app update asked for new actions or requested additional permissions, Google Play would notify the user prompting them to explicitly accept or deny the new action. Even if the user had automatic updates set, in the cases of new permissions being asked, the user would need to manually perform the update. Even if the user wasn’t exactly sure what they were giving permission for, at least the user was aware and could make the decision themselves. Security was preserved.

Everything is different now

Everything changed last week.

Individual permissions, which could range from important to trivial, are now joined into 13 groups, including a catch-all called “Other”. Now the user has to accept a “new group” change. This means that if you have already allowed certain permissions within a group, then any other permission within that group will automatically be allowed. For example, an app that could access your calendar can now also read your contacts. If you set a meeting and have invited people by email, the app will be able to use the calendar to send emails to them, even without your consent!  Read more…

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June 16th, 2014

INFOGRAPHIC: Ole Ola! America will play World Cup soccer on mobile devices

The U.S. is on the soccer field: Our own triple-threat celebrity, Jennifer Lopez, performed at the opening ceremony; Facebook set up a special “Trending World Cup” news feed; Twitter predicts the most tweeted global event ever; Google search features a daily soccer doodle; and the U.S. is playing its first game in the tournament today.

The 2014 World Cup is more digital than any other soccer World Cup. At AVAST, we wanted to understand how people will watch and participate in the tournament this year. In a survey of more than 3,000 AVAST users in the U.S., we discovered mobile devices will play a big part: Two out of three American soccer fans will use their smartphone or tablet to enhance their World Cup experience. 

World Cup 2014, USA, soccer, mobile

Soccer news, live scores and vuvuzela sounds on smartphone

Highest priority for Americans is to stay on top of the game results with more than half the fans reporting they will check the live scores from their smartphone. One-third said they will read news about the games on their smartphone or tablet and one-fifth will live stream the games on their mobile device. Many will certainly be interested in the results as they placed a bet. The best strategies to bet on the winning team have been discussed and people are already well into betting fever. One out of ten survey respondents will use or have already used their smartphone or tablet to place bets. 

There is even more that can be done on mobile. For six percent of respondents, collecting and trading stickers of the players has moved from the paper booklet to digital albums in the cloud. And what would a World Cup be without the famous BZZZZ vuvuzela sound? Cover your ears – this year you can expect to hear a cacophony of digital horns: One in 20 intend to use a mobile app to sound the vuvuzela.

Instead of just following the games, every eighth American fan wants to become a world champion themselves – and will play soccer games on their mobile device. 

For all mobile activities, nearly half of Americans stick to the official FIFA apps, the majority mixes official with unofficial apps or only go for unofficial apps. It’s great for fans to have a wider variety of apps to choose from, but beware, we found some gaming apps that are fake, they won’t let you play and instead just want to collect your data and show you ads.

One out of five will live stream the games on smartphone or tablet

The majority of Americans will still watch the games the traditional way – eight out of ten – on the TV at home. However, digital sources are slowly taking over:  40 percent will watch the tournament on PC  and on the smartphone and tablet 21 percent will watch. 

Now who do Americans think will win? 

Americans’ faith in their own team is low!  Only eight percent think the U.S. team will win. Instead, all bets are on the World Cup host: One-third of Americans pick Brazil to take home the cup.

World Cup safety tips

At AVAST, we think we can all be winners if this will be a safe World Cup. Using your smartphone and tablet during and after the soccer World Cup, make sure you are protected:

  • Only download apps from the official Google Play store
  • Choose apps from official sources and read what others are saying about them
  • Take a close look at the permissions an app requests and question if they are necessary for the apps’ functionality   
  • Use antivirus on your PC, smartphone, and tablet
  • If live streaming the games on public Wi-Fi, make sure you are protected with a VPN solution encrypting your communications such as avast! SecureLine


World Cup 2014, mobile, USA, soccer