Posts Categorized: Mobile


French Android Users Hit again by SMS Trojan

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Earlier this year, the SMS Trojan Foncy was discovered targeting French-speaking Android Users. Now, we’ve come across a new Trojan targeting them using a similar SMS scam.  The app pretends to be an app called BlackMart Alpha, which is already a little shady since it’s used to download apps that may otherwise cost money. This app is not found on Google Play and is not malicious in itself, but the fact that you can’t get it in the Google Play store makes it a prefect target for malware developers to make fake versions of it. Webroot detects this Trojan as […]

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Some Clarification…

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Recently Webroot posted a blog about an app called “London Olympics Widget” which was found in a third party market that may need further clarification.  This app is what we consider a Potentially Unwanted Application (PUA).  PUAs are apps are not considered to be good, nor are they considered malware either.  They are apps that walk a thin line and thus are in a grey area.  The app in question was classified as a PUA because the of the advertisement SDK add-ons it contains.  There are a lot of free apps out there that contain these advertisement SDK add-ons in […]

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Cybercriminals launch managed SMS flooding services

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Mobile devices are an inseparable part of the modern cybercrime ecosystem. From ATM skimmers with SMS notification next to fake antivirus scanners for Android users, the growth of the mobile malware segment is pretty evident. In this post I’ll profile a recently spamvertised managed SMS flooding service, in the context of E-banking fraud, and just how exactly are cybercriminals using the service as a way to evade detection of their fraudulent transactions. More details:

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Seen Ad Pop-up’s in Your Mobile Browser Lately?

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by Armando Orozco Today, one of our Webroot SecureAnywhere for Android users reported seeing ad redirections while browsing on his Android device. As we began investigating, we noticed that there were a lot of other mobile users seeing the same thing – yes, on their iPhones as well! We were also able to reproduce the behavior on our devices. This appears to be a clever Ad redirection using JavaScript. The pop-ups are survey offers for free electronics like iPads and iPhones. The users are asked to complete a survey, at the end of which their email address and phone number […]

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“You Want To Pay For What!?”

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by Nathan Collier Recently we found new apps in alternative Chinese markets that we are considering a Potentially Unwanted Application (PUA).  We are calling these apps Android.PUA.SMS.QuickPay.  Lets look at a sample of this app.  The sample we will look at is an app called “Screen Detection” which is an app that helps find dead pixels on your screen by displaying the colors red, green, blue, black, and white making it easy to see the dead pixel in contrast to these colors.  Pretty simple app.  Within a few seconds of opening the app this message pops up: “Activate the full […]

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