DoubleLocker attacks Android devices

Android users beware: new ransomware is attacking Android gadgets
13 October 2017   1969

Developers of antivirus software from ESET have discovered the first encoder for mobile devices based on Android, which extorts ransom in bitcoins for unlocking the screen. Information about this company was published in the official blog on Habrahabr.

DoubleLocker interface
DoubleLocker interface

Malicious software called DoubleLocker is developed on the basis of a bank trojan, however it is not interested in the victim's finances.

DoubleLocker does not have the functions of collecting user's bank data and erasing accounts, instead it provides tools for extortion. Malware can change the PIN of the device, blocking victim access, and also encrypts all files in the main storage device - we first see such a combination of functions in the Android ecosystem. 

ESET team

 DoubleLocker encrypted files
Files, encrypted by DoubleLocker

DoubleLocker is distributed through compromised sites under the guise of updating or activating Adobe Flash Player. Once on the device, the malware gets the necessary permissions under the guise of enabling the false service Google Play Service.

To unlock the gadget, cybercriminals demand 0.0130 BTC (around $73 at the press time), threatening otherwise to destroy all the data after 24 hours. Nevertheless, according to the, bitcoin-wallet of DoubleLocker is still empty.

DoubleLocker wallet
DoubleLocker wallet

To get rid of DoubleLocker, ESET team recommends:

  • Unplugged device that does not have a mobile device management solution capable of resetting the PIN: the only way to get rid of the lock screen is to reset it to the factory settings.
  • Routed device: the user can connect to the device via ADB and delete the file in which the PIN-code is stored. To do this, user must enable device debugging (Settings - Developer options - USB debugging). The lock screen will be deleted and the user will get access to the device. Then, working in safe mode, the user will be able to deactivate the device administrator rights for the malware and delete it. In some cases, a reboot of the device is required.

Node.js v12.0.0 to be Rolled Out

It has giant list of updates, improvements and changes
24 April 2019   498

The release of Node.js 12.0.0, a platform for executing network applications in JavaScript, is available. Node.js 12.0 refers to branches with a long period of support, but this status will be assigned only in October, after stabilization. Updates for LTS branches are issued for 3 years. Support for the last LTS branch of Node.js 10.0 will last until April 2021, and the year before last LTS-branch 8.0 until January 2020. Support for the intermediate branch Node.js 11.0 will be discontinued in June 2019. The lifetime of the LTS branch 6.0 will end on April 30.

These are some of the large list of updates and new staff:

  • V8 engine was updated to version 7.4 with support for asynchronous stack traces, increasing await performance, parsing JavaScript and calls when the actual and declared number of arguments does not match;
  • TLS 1.3 is now supported in the tls module and TLS 1.0 / 1.1 is shutdown by default;
  • Enhancing protection and checks on the size of allocated memory in the Buffer class;

Get more info at official website.