Win32/Filecoder [Threat Name] go to Threat

Win32/Filecoder.NGQ [Threat Variant Name]

Category trojan
Size 1197190 B
Aliases Trojan-Ransom.Win32.Democry.a (Kaspersky)
  Ransom:Win32/SieteCrypto.A (Microsoft)
Short description

Win32/Filecoder.NGQ is a trojan that encrypts files on fixed and network drives. To restore files to their original state the user is requested to send an e-mail to a specified address in exchange for a password/instructions.

Installation

The trojan does not create any copies of itself.


The trojan creates the following files:

  • %desktop%\­read_this_file.txt
  • %temp%\­tmp.bmp
Payload information

Win32/Filecoder.NGQ is a trojan that encrypts files on fixed and network drives.


The trojan searches for files with the following file extensions:

  • *.*

It avoids files with the following extensions:

  • .exe
  • .777
  • .dll
  • .msi

It avoids files which contain any of the following strings in their path:

  • %rootfolder%
  • %windir%
  • %programfiles%
  • %temp%

It avoids files with size lower then 100 B .


The name of the encrypted file is changed to:

  • %originalfilename%._%date_and_time%_$seven_legion@india.com$.777

The following file is dropped into the %desktop% folder:

  • read_this_file.txt

It contains the following text:

  • FOR DECRYPT FILES
  • SEND ONE FILE IN E-MAIL
  • seven_legion@india.com

The trojan creates the following file:

  • %temp%\­tmp.bmp

This file/image is set as a wallpaper.


To restore files to their original state the user is requested to send an e-mail to a specified address in exchange for a password/instructions.

Other information

The trojan displays the following dialog boxes:

Please enable Javascript to ensure correct displaying of this content and refresh this page.