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An analysis of the technologies used by cybercriminals allows us to draw conclusions about the virus industry’s possible vectors of development and more effectively confront future threats. You, too, can learn what actions various malicious programs take in infected systems and how to withstand them.
A family of ransomware Trojans for Android.
Different modifications of these malicious programs can lock the device displaying a warning about some violation of law. To unlock the device, the user has to pay a ransom. If the user attempts to close the warning message or to exit to main menu, the message reappears preventing the user from operating the device in a usual way.
More dangerous modifications of Android.Locker run a search for user files stored on an SD card (for example, graphics files with .jpeg, .jpg, .png, .bmp, .gif extensions, text files with .pdf, .doc, .docx, .txt extensions, video files with avi, .mkv, .3gp extensions) and encrypt them. Then Trojans demand a ransom to unlock these files.
If you have encountered the first modification of these Trojans, it is recommended to reboot the device in safe mode (see User Manual) and to remove the malware manually or using Dr.Web for Android.
Android.Locker.5516
Android.Locker.5517
Android.Locker.5518
Android.Locker.5519
Android.Locker.5520
Android.Locker.5521
Android.Locker.5522
Android.Locker.5523
Android.Locker.5524
Android.Locker.5525
Android.Locker.5526
Android.Locker.5527
Android.Locker.5528
Android.Locker.5529
Android.Locker.5530
Android.Locker.5531
Android.Locker.5532
Android.Locker.5534
Android.Locker.5535
Android.Locker.5536
Android.Locker.5537
Android.Locker.5538
Android.Locker.5539
Android.Locker.5540
Android.Locker.5541
Android.Locker.5542
Android.Locker.5543
Android.Locker.5544
Android.Locker.5545
Android.Locker.5546
Android.Locker.5547
Android.Locker.5548
Android.Locker.5549
Android.Locker.5550
Android.Locker.5551
Android.Locker.5552
Android.Locker.5553
Android.Locker.5554
Android.Locker.5555
Android.Locker.5556
Android.Locker.5557
Android.Locker.5560
Android.Locker.5561
Android.Locker.5562
Android.Locker.5563
Android.Locker.5565
Android.Locker.5566
Android.Locker.5568
Android.Locker.5569
Android.Locker.5570
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According to statistics, every fifth program for Android contains a vulnerability (or, in other words, a "loophole") that lets cybercriminals successfully introduce Trojans onto mobile devices and manipulate them into doing whatever actions they need them to.
Dr.Web Security Auditor for Android diagnoses and analyses a mobile device’s security and offers solutions to address security problems and vulnerabilities.