CTFMONA.EXE - Dangerous

What you should do about CTFMONA.EXE:

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


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What we know about CTFMONA.EXE:

The filename CTFMONA.EXE was first seen on Oct 4 2007 in NETHERLANDS. It has also been seen in the following geographical regions of the Prevx community:

  • SPAIN on Oct 4 2007
  • The UNITED KINGDOM on Mar 3 2008
  • THAILAND on Mar 22 2008
  • The EUROPEAN UNION on Mar 9 2008
  • The UNITED STATES on Nov 14 2007
The filename CTFMONA.EXE refers to many versions of an executable program.

The most common file size is 22,664 bytes. But the following file sizes have also been seen:

  • 31,748 bytes
  • 231,394 bytes
  • 16,384 bytes
  • 344,064 bytes
  • 16,896 bytes
  • 28,400 bytes

The filename is associated with the malware group Trojan.Nudos.Some files using the name CTFMONA.EXE are also associated with the malware groups:
  • Trojan.Zlob
  • Agent.TUS
  • SHeur.ADEV
 These files have no vendor, product or version information specified in the file header.

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

  • The Process is packed and/or encrypted using a software packing process
  • 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
  • Executes a Process
  • Modifies the Windows Built in Screen Saver
  • Writes to another Process's Virtual Memory (Process Hijacking)
  • Executes Processes stored in Temporary Folders
  • Creates potentially fake system tray messages and error warnings
  • Opens pop up browser windows
  • Visits web sites without the user knowing
  • This Process is a file infector which modifies program files to include a host a copy of the infection
  • Registers a Dynamic Link Library File
  • Creates new folders in the file system
  • Enables an In Process Object/Server - Common with DLL Injections
  • Looks at the contents of the autoexec.bat file
  • Reads email address and phone book details

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

  • Added as a Registry auto start to load Program on Boot up
  • Created as a process on disk
  • Executed as a Process
  • Has code inserted into its Virtual Memory space by other programs
  • Deleted as a process from disk
  • Terminated as a Process
  • Executed by Internet Explorer

CTFMONA.EXE can also use the following file names:

  • 41287038.EXE
  • 59123806.EXE
  • AVPPRO.EXE
  • 74512189.SVD
  • DPTRNEPBBG-423.PMS.EXE
  • SCAN[1].EXE
  • INSTALL[1]
  • SCAN[2].EXE
  • 41681487.SVD
  • DPTRREIMLG-60.PMS.EXE
  • 57789108.DAT
  • SCAN32[1].EXE
  • 73AC.TMP
  • 63504345.SVD
  • 22407383.EXE
  • SCAN[1]-C51DC1E8.EXE
  • 41982295.EXE
  • 13310246.EXE
  • 73236892.SVD
  • DPTRRIWDXV-27.PMS.EXE
  • A0012201.EXE
  • 84077167.DAT
  • UPDATEKB890830[1].EXE
  • UPDATEKB890830.EXE
  • DC33.EXE
  • 55664671.EXE
  • 23087345.SVD
  • 17639041.EXE
  • IYLEA3P0.EXE
  • 79951526.EXE
  • 8ML63GKQ.EXE
  • ANTIVIRUSPROINSTALLER_127[1].EXE
  • ANTIVIRUSPROINSTALLER_127.EXE
  • DC6.EXE
  • 87815688.DAT
  • 13724975.EXE
  • Q6Y9AH1P.EXE
  • 67BJEM3X.EXE
  • CBJRSEDX.EXE
  • 70782273.SVD
  • KG91XXLL.EXE
  • ANTIVIRUSPROINSTALLER_127(2).EXE
  • V7WCAICD.EXE
  • 31798851.DAT
  • 59283945.DAT
  • TWE5IL4V.EXE
  • DC7.EXE
  • 83813254.DAT