1. Symantec/
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  3. Attack Signatures/
  4. Nebiwo Worm Propagation (3)

Nebiwo Worm Propagation (3)

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 the propagation of a malicious worm called W32 HLLW Nebiwo.

Additional Information

W32 HLLW Nebiwo is a worm that spreads to other machines via network $IPC shares. It initially sends out a SYN TCP packet on port 445 to attempt to determine the existence of a Server Message Block (SMB) server. If it does exist, the worm will propagate a copy of itself via TCP port 139, thus being able to replicate on the victim machine.

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
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