MSO13.EXE - Dangerous

What you should do about MSO13.EXE:

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Your PC is infected. The file called MSO13.EXE is considered unsafe and there may be other infections on your PC.


You should urgently check your PC and remove any malicious software including MSO13.EXE as soon as possible. The free version of Prevx CSI will scan your PC for millions of spyware and malware infections in less than 2 minutes. Don't take the risk, check your PC now by clicking the green button.

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What we know about MSO13.EXE:

The filename MSO13.EXE was first seen on Mar 18 2008 in The EUROPEAN UNION. It has also been seen in the following geographical regions of the Prevx community:

  • The UNITED KINGDOM on Mar 19 2008
The filename MSO13.EXE is used by multiple object types including objects,executable programs.

The most common file size is 44,032 bytes. But the following file sizes have also been seen:

  • 31,956 bytes
  • 32,092 bytes
  • 31,844 bytes

The filename is associated with the malware group Trojan.EFX.A.

 These files have no vendor, product or version information specified in the file header.

MSO13.EXE has been seen to perform the following behavior(s):

  • The Process is packed and/or encrypted using a software packing process
  • The Process is polymorphic and can change its structure
  • Adds a Registry Key (RUN) to auto start Programs on system start up
  • Executes a Process
  • This Process Creates Other Processes On Disk
  • This Process Deletes Other Processes From Disk
  • Creates new folders in the file system
  • Registers a Dynamic Link Library File
  • Executes Processes stored in Temporary Folders

MSO13.EXE has been the subject of the following behavior(s):

  • Executed from Temporary Folders
  • Has code inserted into its Virtual Memory space by other programs
  • Executed as a Process
  • Added as a Registry auto start to load Program on Boot up
  • Created as a process on disk
  • Deleted as a process from disk
  • Terminated as a Process
  • Registered as a Dynamic Link Library File

MSO13.EXE can also use the following file names:

  • MSPRINT.EXE
  • 87082895.DAT
  • 75523024.SVD
  • DPTREKWYLI-273.PMS.EXE
  • 91CA19B2D46B176E683DA963E8DB86C2.EXE
  • 84551487.EXE