Win32/Injector.FVA [Threat Name] go to Threat

Win32/Injector.FVA [Threat Variant Name]

Category trojan
Size 119296 B
Aliases IM-Worm.Win32.Ckbface.bvn (Kaspersky)
  VirTool:Win32/CeeInject.V (Microsoft)
Short description

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


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

  • %windir%\­jusched.exe

The trojan creates the following files:

  • %windir%\­wintybrd.png
  • %windir%\­wintybrdf.jpg
  • %windir%\­mdll.dl

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

  • [HKEY_LOCAL_MACHINE\­SOFTWARE\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Java developer Script Browse" = "%windir%\­jusched.exe"
  • [HKEY_LOCAL_MACHINE\­SOFTWARE\­Microsoft\­Windows NT\­CurrentVersion\­Terminal Server\­Install\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Java developer Script Browse" = "%windir%\­jusched.exe"
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Java developer Script Browse" = "%windir%\­jusched.exe"

The following Registry entries are created:

  • [HKEY_LOCAL_MACHINE\­SYSTEM\­CurrentControlSet\­Services\­SharedAccess\­Parameters\­FirewallPolicy\­StandardProfile\­AuthorizedApplications\­List]
    • "%windir%\­jusched.exe" = "%windir%\­jusched.exe:*:Enabled:Java developer Script Browse"

The performed data entry creates an exception in the Windows Firewall program.

Other information

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

The trojan contains a list of addresses. The IRC 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
  • send spam
  • open a specific URL address
  • spread via IM networks

The trojan collects the following information:

  • computer IP address
  • operating system version

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

The following services are disabled:

  • Windows Automatic Update Service (wuauserv)

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