Win32/XRat [Threat Name] go to Threat

Win32/XRat.P [Threat Variant Name]

Category trojan
Size 30208 B
Detection created Jun 28, 2006
Detection database version 0.11630
Aliases Backdoor:Win32/IRCbot (Microsoft)
  W32.IRCBot (Symantec)
Short description

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

Installation

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

  • %system%\­taskmrg.exe

The following file is dropped:

  • %currentfolder%\­insecure.txt (268 B)

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

  • [HKEY_LOCAL_MACHINE\­SOFTWARE\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Microsoft Configuration Wizard" = "%system%\­taskmrg.exe"
  • [HKEY_LOCAL_MACHINE\­SOFTWARE\­Microsoft\­Windows\­CurrentVersion\­RunServices]
    • "Microsoft Configuration Wizard" = "%system%\­taskmrg.exe"
Information stealing

Win32/XRat.P is a trojan that steals sensitive information.


The trojan collects the following information:

  • operating system version
  • hardware information
  • CPU information
  • user name
  • computer name
  • computer IP address
  • application startup time
  • type of Internet connection

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

Other information

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


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


The trojan contains a list of (1) addresses. The IRC 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
  • collect information about the operating system used
  • send the list of running processes to a remote computer
  • terminate running processes
  • execute shell commands
  • set up a proxy server
  • open a specific URL address
  • update itself to a newer version
  • uninstall itself
  • send gathered information

The trojan blocks access to the following sites:

  • www.microsoft.com
  • microsoft.com
  • update.microsoft.com
  • update.grisoft.com
  • update.grisoft.gz
  • www.grisoft.com
  • www.trendmicro.com
  • trendmicro.com
  • rads.mcafee.com
  • customer.symantec.com
  • liveupdate.symantec.com
  • us.mcafee.com
  • updates.symantec.com
  • update.symantec.com
  • www.nai.com
  • nai.com
  • secure.nai.com
  • dispatch.mcafee.com
  • download.mcafee.com
  • www.my-etrust.com
  • my-etrust.com
  • mast.mcafee.com
  • ca.com
  • www.ca.com
  • networkassociates.com
  • www.networkassociates.com
  • avp.com
  • www.kaspersky.com
  • www.avp.com
  • kaspersky-labs.com
  • kaspersky.com
  • www.f-secure.com
  • f-secure.com
  • viruslist.com
  • www.viruslist.com
  • liveupdate.symantecliveupdate.com
  • mcafee.com
  • www.mcafee.com
  • sophos.com
  • www.sophos.com
  • symantec.com
  • securityresponse.symantec.com
  • www.symantec.com

The trojan hides the windows of certain running applications.

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