MSIL/TrojanClicker.Agent.NBY [Threat Name] go to Threat

MSIL/TrojanClicker.Agent.NBY [Threat Variant Name]

Category trojan
Size 68944 B
Aliases Clicker.BDYD (AVG)
Short description

MSIL/TrojanClicker.Agent.NBY is a trojan which tries to download other malware from the Internet.


The trojan does not create any copies of itself.

Information stealing

MSIL/TrojanClicker.Agent.NBY is a trojan that steals sensitive information.

The trojan collects the following information:

  • operating system version
  • MAC address
  • computer name
  • name, version of default Internet browser

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) URLs. It tries to download several files from the addresses.

These are stored in the following locations:

  • %commonappdata%\­csrss.exe
  • %currentfolder%\­task.exe

The files are then executed. The HTTP protocol is used.

The trojan may set the following Registry entries:

  • [HKEY_LOCAL_MACHINE\­SOFTWARE\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "csrss" = "%commonappdata%\­csrss.exe"

This way the trojan ensures that the file is executed on every system start.

The trojan sends requests to simulate clicks on banner advertisements, to inflate web counter statistics etc.

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