BD Y3K RAT 1.1

Severity: High

This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.

Description

This signature detects Backdoor Y3K RAT 1.1 activity.

Additional Information

Backdoor Y3K RAT 1.1 is a Trojan that opens up a backdoor program that, once installed on a system, permits unauthorized users to remotely perform a variety of operations, such as changing the registry, executing commands, starting services, listing files, and uploading or downloading files. Y3K RAT typically runs from the server file "C:\WINDOWS\RundlI.exe" over ports 5882, 5888, and 5889 via TCP.

Affected

  • Microsoft Windows 2000 Advanced Server SP1, SP2, SP3, SP4
  • Microsoft Windows 2000 Datacenter Server SP1, SP2, SP3, SP4
  • Microsoft Windows 2000 Professional SP1, SP2, SP3, SP4
  • Microsoft Windows 2000 Resource Kit
  • Microsoft Windows 2000 Server SP1, SP2, SP3, SP4
  • Microsoft Windows 2000 Server Japanese Edition
  • Microsoft Windows 2000 Terminal Services SP1, SP2, SP3, SP4
  • Microsoft Windows 2000 Workstation rev.2031, rev.2072, rev.2195, SP1, SP2, SP3
  • Microsoft Windows 95 Build 490.R6, j, SP1, SR2
  • Microsoft Windows 98 a, b, j, SP1
  • Microsoft Windows 98 With Plus! Pack
  • Microsoft Windows 98SE
  • Microsoft Windows CE 2.0, 3.0, 4.2
  • Microsoft Windows ME
  • Microsoft Windows NT 3.5, 3.5.1, 3.5.1 SP1, 3.5.1 SP2, 3.5.1 SP3, 3.5.1 SP4, 3.5.1 SP5, 3.5.1 SP5 alpha, 4.0, 4.0 alpha, 4.0 SP1, 4.0 SP1 alpha, 4.0 SP2, 4.0 SP2 alpha, 4.0 SP3, 4.0 SP3 alpha, 4.0 SP4, 4.0 SP4 alpha, 4.0 SP5, 4.0 SP5 alpha, 4.0 SP6, 4.0 SP6 alpha, 4.0 SP6a, 4.0 SP6a alpha
  • Microsoft Windows NT 4.0 Option Pack
  • Microsoft Windows NT Enterprise Server 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a
  • Microsoft Windows NT Server 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a
  • Microsoft Windows NT Terminal Server 4.0, 4.0 alpha, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a
  • Microsoft Windows NT Workstation 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a
  • Microsoft Windows Server 2003 Datacenter Edition SP1, SP1 Beta 1
  • Microsoft Windows Server 2003 Datacenter Edition Itanium SP1, SP1 Beta 1
  • Microsoft Windows Server 2003 Datacenter x64 Edition
  • Microsoft Windows Server 2003 Enterprise Edition SP1, SP1 Beta 1
  • Microsoft Windows Server 2003 Enterprise Edition Itanium SP1, SP1 Beta 1
  • Microsoft Windows Server 2003 Enterprise x64 Edition
  • Microsoft Windows Server 2003 Standard Edition SP1, SP1 Beta 1
  • Microsoft Windows Server 2003 Standard x64 Edition
  • Microsoft Windows Server 2003 Web Edition SP1, SP1 Beta 1
  • Microsoft Windows Vista beta
  • Microsoft Windows XP
  • Microsoft Windows XP 64-bit Edition SP1
  • Microsoft Windows XP 64-bit Edition Version 2003 SP1
  • Microsoft Windows XP Embedded SP1
  • Microsoft Windows XP Home SP1, SP2
  • Microsoft Windows XP Media Center Edition SP1, SP2
  • Microsoft Windows XP Professional SP1, SP2
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows XP Tablet PC Edition SP1, SP2

Response

There are several Backdoor detection programs on the market that are said to be able to scan for and detect a Backdoor Y3K RAT 1.1 server on your system. Some of the better known AntiVirus vendors have included detection strings in their virus definitions.
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