Win32/TrojanDownloader.Zurgop [Threat Name] go to Threat

Win32/TrojanDownloader.Zurgop.AZ [Threat Variant Name]

Category trojan
Size 63488 B
Short description

Win32/TrojanDownloader.Zurgop.AZ is a trojan which tries to download other malware from the Internet. The file is run-time compressed using PECompact .


When executed the trojan copies itself in the following locations:

  • %appdata%\­%variable1%\­%variable2%.exe

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

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Policies\­Explorer\­Run]
    • "%variable3%" = "%appdata%\­%variable1%\­%variable2%.exe"
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "%variable3%" = "%appdata%\­%variable1%\­%variable2%.exe"

The trojan may create the following files:

  • %startup%\­%variable2%.lnk

A string with variable content is used instead of %variable1-3% .

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

  • explorer.exe
  • svchost.exe
Other information

The trojan quits immediately if it detects certain security applications running.

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

The trojan contains a list of (1) URLs. 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
  • update itself to a newer version
  • remove itself from the infected computer
  • collect information about the operating system used
  • send gathered information

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