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Added to the Dr.Web virus database: 2015-07-21

Virus description added:

sha1: ab8809c283ca6b950c0caf8a3cc69e8d270a1565

A downloader Trojan distributed as a Microsoft Word document in attachments to email messages. The document itself is supposed to be encrypted with RSA. To be able to read the contents of the message, the victim is prompted to enable macros.

The document also contains an empty page that actually has the text typed in white which becomes visible once the user enables macros. At the same time, the Trojan starts downloading several code fragments from the remote server. Using these fragments and depending on the Windows version, the malicious program generates scripts with .bat and .vbs extensions (for Microsoft Windows XP) or with a .ps1 extension (for Windows 7). The malware saves them on the computer and then runs. The scripts, in turn, download from the server controlled by cybercriminals another executable file and launch it.

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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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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Download by serial number

  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.

Find out more about Dr.Web for Android