Win32/Bandok [Threat Name] go to Threat

Win32/Bandok.B [Threat Variant Name]

Category trojan
Size 36352 B
Detection created Apr 29, 2005
Detection database version 1083
Aliases Backdoor.Win32.Bandok.a (Kaspersky)
  Downloader-AAA.trojan (McAfee)
  Trojan:Win32/AgentBypass.gen!C (Microsoft)
  Backdoor.Bandok.B (BitDefender)
Short description

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


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

  • %system%\­ali.exe

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

  • [HKEY_LOCAL_MACHINE\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "bandook" = "ali.exe"

The following Registry entry is set:

  • [HKEY_LOCAL_MACHINE\­SYSTEM\­CurrentControlSet\­Services\­SharedAccess\­Parameters\­FirewallPolicy\­StandardProfile]
    • "EnableFirewall" = 0

This disables the Windows Firewall service.

The trojan creates and runs a new thread with its own program code within the following processes:

  • %defaultbrowser%
Information stealing

Win32/Bandok.B is a trojan that steals sensitive information.

The trojan collects the following information:

  • user name
  • computer IP address

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

Other information

The trojan serves as a backdoor. It can be controlled remotely. It listens on TCP port 2323 .

It can execute the following operations:

  • download files from a remote computer and/or the Internet
  • run executable files
  • set up a proxy server

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