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Trojan.PWS.Stealer.24637

Added to the Dr.Web virus database: 2018-09-14

Virus description added:

SHA1:

  • 7a18337432a32fb717464f83a377a04f6ddd16a6

The Trojan intended to steal confidential information on computers running Microsoft Windows. Self-name is Evrial stealer, the author of the Trojan is a virus writer, hiding under the pseudonym TheBottle.

The malicious program can work both in 32-bit and 64-bit versions of Windows. The main difference of this Trojan from other stealers written by the same author is the implementation in Evrial stealer of the clipper functions, i.e., the possibility of changing the clipboard contents. This clipper is able to track and substitute in the clipboard the purse numbers of the following crypto-currencies and electronic payment systems: BTC, LTC, MONERO, ETHEREUM, QIWI, WMR, WMZ, WME.

The Trojan steals the saved passwords from the browsers Chromium, Google Chrome, Opera, Kometa, Amigo, Torch, Orbitum, Comodo Dragon and Yandex.Browser, as well as user data from FileZilla and Pidgin applications. The malicious program can transfer to the cybercriminal the files stored on the Windows desktop with the extensions .doc, .docx, .txt and .log. It copies the file wallet.dat, used by the software for working with Bitcoin crypto currency (if there is such file) on the server belonging to cybercriminals.

The Trojan is implemented as an executable EXE file, which is registered at startup on the first start. The clipping module tracks the status of the infected computer's clipboard. If it is able to determine that the value of the name of the electronic wallet in the format supported by the Trojan is placed on the clipboard, it refers to the managing server, receives from it values to which the clipboard contents should be changed, and replaces them.

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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