MSIL/Stimilik [Threat Name] go to Threat

MSIL/Stimilik.H [Threat Variant Name]

Category trojan
Aliases HEUR:Trojan.Win32.Generic (Kaspersky)
  Trojan.DownLoader11.30750 (Dr.Web)
Short description

MSIL/Stimilik.H is a trojan that steals sensitive information. The trojan attempts to send gathered information to a remote machine. It can be controlled remotely.


The trojan may create the following files:

  • %appdata%\­steamwebhelper2\­steamwebhelper.exe
  • %currentdirectory%\­%variable%.exe

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

The trojan may set the following Registry entries:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "steamwebhelper" = "%appdata%\­steamwebhelper2\­steamwebhelper.exe"
  • [HKEY_LOCAL_MACHINE\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "steamwebhelper" = "%appdata%\­steamwebhelper2\­steamwebhelper.exe"

This causes the trojan to be executed on every system start.

Information stealing

The trojan collects various sensitive information.

The trojan gathers information related to the following services:

  • Steam

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 URLs. The HTTP protocol is used in the communication.

It may perform the following actions:

  • download files from a remote computer and/or the Internet
  • run executable files

The trojan is able to trade game items without the user's knowledge.

The games affected include the following:

  • Counter-Strike: Global Offensive
  • DOTA 2
  • Team Fortress 2
  • Warframe

Trojan requires the Microsoft .NET framework to run.

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