Win32/Emotet [Threat Name] go to Threat

Win32/Emotet.AA [Threat Variant Name]

Category trojan
Size 70144 B
Detection created Jun 02, 2014
Detection database version 9987
Aliases Trojan-Ransom.Win32.Foreign.kvnr (Kaspersky)
  Troj/Cridex-EG (Sophos)
  Trojan.Emotet.2 (Dr.Web)
Short description

Win32/Emotet.AA is a trojan which tries to download other malware from the Internet.

Installation

When executed, the trojan creates the following files:

  • %appdata%\­Microsoft\­%variable1%%variable2%.exe (81920 B, Win32/Emotet.AA)

A string with variable content is used instead of %variable1% .


The %variable2% is one of the following strings:

  • api32
  • audio
  • bios
  • boot
  • cap32
  • common
  • config
  • crypt
  • edit32
  • error
  • mgr32
  • serial
  • setup
  • share
  • sock
  • system
  • update
  • video
  • windows

In order to be executed on every system start, the trojan sets the following Registry entry:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "%variable1%%variable2%.exe" = "%appdata%\­Microsoft\­%variable1%%variable2%.exe"

The trojan may create and run a new thread with its own program code within any running process.

Information stealing

The trojan collects the following information:

  • information about the operating system and system settings

The trojan attempts to send gathered information to a remote machine.

Other information

The trojan acquires data and commands from a remote computer or the Internet.


The trojan contains a list of 11 URLs. The HTTP protocol is used.


It can execute the following operations:

  • download files from a remote computer and/or the Internet
  • run executable files
  • create Registry entries
  • delete Registry entries

The trojan may set the following Registry entries:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Office\­Common\­%variable1%\­%variable2%]
    • "1"
    • "2"

A string with variable content is used instead of %variable1-2% .

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