USNSVC.EXE - Dangerous

What you should do about USNSVC.EXE:

Your PC may be infected. The presence of a file called USNSVC.EXE is a possible sign of infection.

You should urgently check your PC to make sure it is not infected. The free version of Prevx CSI will scan your PC in less than two minutes and check for millions of spyware and malware infections including USNSVC.EXE. Don't take the risk, check your PC now.

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What we know about USNSVC.EXE:

The filename USNSVC.EXE was first seen on Sep 24 2007 in The EUROPEAN UNION. It has also been seen in the following geographical regions of the Prevx community:

  • AUSTRALIA on Feb 29 2008
  • SPAIN on Sep 24 2007
  • URUGUAY on Aug 24 2008
  • FRANCE on Sep 24 2007
The filename USNSVC.EXE is used by multiple object types including Dynamic Link LIbraries,executable programs,objects.

The most common file size is 403,456 bytes. But the following file sizes have also been seen:

  • 97,136 bytes
  • 61,935 bytes
  • 566,784 bytes
  • 276,438 bytes

The unsafe files using this name are associated with the malware group WORM.SPYBOTAX.99328.Some files using the name USNSVC.EXE are also associated with the malware group:
  • BackDoor.RBot.GL

These files may have the following Vendor, Product, Version Information in the file header

  • The following Vendor, Product, Version Information has also been reported:
 NewTech Infosystems, Inc.; DataEx32 DLL; 2, 1, 0, 21 Microsoft Corporation; Messenger Sharing USN Journal Reader Service; 8.5.1302.1018

USNSVC.EXE has been seen to perform the following behavior(s):

  • The Process is packed and/or encrypted using a software packing process
  • Executes a Process
  • Registers a Dynamic Link Library File
  • Creates a new Background Service on the machine
  • Looks at the contents of the autoexec.bat file
  • Reads email address and phone book details
  • Uses DNS to retrieve the IP address for web sites
  • Uses reverse DNS to retrieve the host names on IP addresses
  • Visits web sites on your PC without you knowing
  • Uses your PC to connect to Chat rooms
  • Adds a Registry Key (RUN) to auto start Programs on system start up
  • This Process Creates Other Processes On Disk
  • This Process Deletes Other Processes From Disk
  • Can communicate with other computer systems using HTTP protocols
  • Disables the built in Windows File Protection System
  • Makes outbound connections to other computers using NETBIOSOUT protocols
  • Executes Processes stored in Temporary Folders
  • The Process is polymorphic and can change its structure

USNSVC.EXE has been the subject of the following behavior(s):

  • Created as a new Background Service on the machine
  • Executed as a Process
  • Copied to multiple locations on the system
  • Deleted as a process from disk
  • Created as a process on disk
  • Executed from Temporary Folders
  • Added as a Registry auto start to load Program on Boot up
  • Has code inserted into its Virtual Memory space by other programs

USNSVC.EXE can also use the following file names:

  • ERASEME_25337.EXE
  • 95109516.SVD
  • 97550486.COM
  • ERASEME_73116.EXE
  • WWW.N039_JPG-MSN.COM
  • 97031823.EXE
  • ERASEME_84831.EXE
  • ERASEME_83107.EXE
  • 69992709.COM
  • 38702097.COM
  • 50683633.COM
  • 71593544.COM
  • 54737882.EXE
  • 66074428.EXE
  • 16459144.COM
  • 54583666.EXE
  • 25899067.COM
  • 32025631.EXE
  • 66990133.COM
  • 77365583.EXE
  • 48029306.EXE
  • FICHIER/USNSVC.EXE
  • 09217042.COM
  • 68697855.EXE
  • 12729785.EXE
  • 06647098.EXE
  • 60930931.COM
  • 63103907.COM
  • 43112023.COM
  • 53101952.EXE
  • 07190011.EXE
  • ERASEME_10375.EXE
  • C[1].JPG
  • 01444031.COM
  • 74352058.EXE
  • 92817687.EXE
  • 31761939.COM
  • 84017069.COM
  • ERASEME_58377.EXE
  • 62593962.COM
  • 14959356.COM
  • 44054701.COM
  • 01122615.EXE
  • 07595449.COM
  • 84153514.EXE
  • 58343642.CO
  • 15580824.COM
  • 17638687.EXE
  • 05205216.COM
  • 95652581.COM

Virus, Spyware & Malware Center