Win32/Zacom [Threat Name] go to Threat

Win32/Zacom.J [Threat Variant Name]

Category trojan
Size 153600 B
Aliases Backdoor.Win32.Zacom.f (Kaspersky)
  Troj/Zacom-D (Sophos)
  Trojan:Win32/MultiInjector.C!rfn (Microsoft)
Short description

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


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

  • %localappdata%\­audioadg.exe

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

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Identity" = "%localappdata%\­audioadg.exe"
Information stealing

The trojan collects the following information:

  • computer name
  • information about the operating system and system settings
  • network adapter information
  • language settings
  • list of running processes
  • list of running services
  • list of files/folders on a specific drive
  • list of disk devices and their type

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 URL address. 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
  • execute shell commands
  • send files to a remote computer
  • delete files
  • uninstall itself
  • send gathered information

The trojan may create the following files:

  • %temp%\­~Nt94791024.bat
  • %temp%\­~1E35AC3464EFD2.tmp
  • %temp%\­$NtUninstall234BECD$

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