NSDUO.DLL - Dangerous

What you should do about NSDUO.DLL:

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Your PC is infected. The file called NSDUO.DLL is considered unsafe and there may be other infections on your PC.


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What we know about NSDUO.DLL:

The filename NSDUO.DLL was first seen on Sep 5 2007 in The UNITED KINGDOM. It has also been seen in the following geographical regions of the Prevx community:

  • SPAIN on Sep 5 2007
  • DENMARK on Sep 22 2007
  • The UNITED STATES on Sep 6 2007
  • The EUROPEAN UNION on Sep 6 2007
The filename NSDUO.DLL refers to many versions of a dynamic link library.

The most common file size is 172,032 bytes. But the following file sizes have also been seen:

  • 225,280 bytes
  • 258,048 bytes
  • 126,976 bytes

The filename is associated with the malware group Adware Generic2.PDH.Some files using the name NSDUO.DLL are also associated with the malware groups:
  • Generic.Dropper.xCodec
  • Infostealer
 These files have no vendor, product or version information specified in the file header.

NSDUO.DLL has been seen to perform the following behavior(s):

  • Creation and Registration of a Browser Helper Object in Internet Explorer
  • Enables an In Process Object/Server - Common with DLL Injections
  • Registers a Dynamic Link Libray (DLL) File

NSDUO.DLL has been the subject of the following behavior(s):

  • Registered as a Dynamic Link Library File
  • Enabled as an In Process Object/Server - Common with DLL Injections
  • Registered as a Dynamic Link Libray (DLL) File
  • Created as a process on disk
  • Deleted as a process from disk
  • Creation and Registered as a Browser Helper Object in Internet Explorer
  • Executed as a Process

NSDUO.DLL can also use the following file names:

  • 03502496.DLL
  • 12477422.DLL
  • 25470758.DLL
  • 55415773.DLL
  • 62978249.DLL
  • 54640536.DLL
  • 50350456.DLL
  • BACKUP-20070924-191207-832.DLL
  • 35139185.DLL
  • 35666375.DLL
  • 64675878.DAT
  • 38038987.DLL
  • 72796699.DLL
  • NSDUŸŸŸŸL
  • 89227184.LL
  • 25315502.DLL
  • 02304556.DLL
  • BACKUP-20070911-100000-970.DLL
  • 35612173.DLL
  • 07697277.DLL
  • 02334504.DLL
  • AC8ZT2/NSDUO.DLL
  • 44961171.DLL
  • A0099845.DLL
  • 25727004.DLL
  • 52576484.DLL
  • 01706626.DLL
  • NSDUO.DLL__DELETE_ON_REBOOT

Virus, Spyware & Malware Center