Win32/Wigon [Threat Name] go to Threat

Win32/Wigon.OV [Threat Variant Name]

Category trojan
Size 80896 B
Aliases Trojan-Dropper.Win32.Daws.cbdd (Kaspersky)
  TrojanDownloader:Win32/Cutwail.BF (Microsoft)
  Win32:Zbot-TCT (Avast)
Short description

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


When executed the trojan copies itself in the following locations:

  • %systemroot%\­system32\­%variable%.exe
  • %userprofile%\­%variable%.exe

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

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

  • [HKEY_LOCAL_MACHINE\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "%variable%" = "%systemroot%\­system32\­%variable%.exe"
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "%variable%" = "%userprofile%\­%variable%.exe"

The trojan may set the following Registry entries:

  • [HKEY_LOCAL_MACHINE\­Software\­WinNTData]
    • "prx" = "%downloadedconfiguration%"
  • [HKEY_CURRENT_USER\­Software\­WinNTData]
    • "prx" = "%downloadedconfiguration%"
Information stealing

Win32/Wigon.OV is a trojan that steals sensitive information.

The following information is collected:

  • operating system version

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 (2) IP addresses. The network communication with remote computer/server is encrypted.

It can execute the following operations:

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

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

  • svchost.exe
  • %malwarefilepath%

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