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Added to the Dr.Web virus database: 2016-01-25

Virus description added:


  • 90dce3ff33ae46da6937d6ca7068dc64dbfebe76
  • beb84b80429440adeb06d973ffc4acb99d6e344b

It is a Windows version of the Linux.Ekoms.1 Trojan. Once launched, the malicious program checks the %appdata% folder for the following files:

  • "Skype/SkypeHelper.exe"
  • "Dropbox/bin/DropboxHelper.exe"
  • "Google/Chrome/nacl32.exe"
  • "Google/Chrome/nacl64.exe"
  • "Mozilla/Firefox/mozillacache.exe"
  • "Adobe/Acrobat/AcroBroker.exe"
  • "Hewlett-Packard/hpqcore.exe"
  • "Hewlett-Packard/hpprint.exe"
  • "Hewlett-Packard/hpscan.exe"

If the specified files are not found, the Trojan saves its own copy named as one of the mentioned files randomly chosen.

Apart from screenshot taking, Trojan.Ekoms.1 creates two file types: the one is appended with the .kkt extension and stores information on key strokes, and the other, with the .ddt extension, contains a list of files in folders. These two files are then transmitted to the server. It is noteworthy that the files are also mentioned in Linux.Ekoms.1, but it does not have a code responsible for their processing. Like its counterpart, Trojan.Ekoms.1 can record sound and save it in the WAV format. However, this function is not used in this modification as well.

The Trojan has a valid digital signature registered to some company called “Issledovaniya i razrabotka”, and a root certificate is issued by Comodo.

screen Trojan.Ekoms.1 #drweb

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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  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