Win32/Atrax [Threat Name] go to Threat

Win32/Atrax.A [Threat Variant Name]

Category trojan
Size 1270272 B
Short description

The trojan serves as a backdoor. It can be controlled remotely.


When executed, the trojan copies itself into the following location:

  • %appdata%\­%random%.exe

The variable %random% represents a variable 5 digit number.

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

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

The trojan may create the following files:

  • %appdata%\­CC250462B0857727%variable%

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

The trojan can create and run a new thread with its own program code within the following processes:

  • explorer.exe
Information stealing

Win32/Atrax.A is a trojan that steals sensitive information.

The trojan collects the following information:

  • computer IP address
  • computer name
  • user name
  • operating system version
  • hardware information
  • CPU information

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

Other information

The trojan serves as a backdoor. It can be controlled remotely.

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

The trojan contains a URL address. The HTTP (TOR Hidden Services) protocol is used in the communication.

It can execute the following operations:

  • download files from a remote computer and/or the Internet
  • run executable files
  • stop itself for a certain time period
  • update itself to a newer version

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