What is dna.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the dna.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Dna.exe file information

The process known as BitTorrent DNA belongs to software Microsoft Office (version 2002 Std) by BitTorrent (

Description: Dna.exe is not essential for Windows and will often cause problems. The file dna.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 286,016 bytes (50% of all occurrences), 216,064 bytes and 4 more variants. 
There is no information about the author of the file. It is not a Windows core file. The software starts upon Windows startup (see Registry key: Run). The program is not visible. The process uses ports to connect to or from a LAN or the Internet. It is a Verisign signed file. The file has a digital signature. Dna.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 64% dangerous, however you should also read the user reviews.

Uninstalling this variant: If there are any problems with dna.exe, you can also remove the entire program Microsoft Office 2002 Std using Windows Control Panel.

Recommended: Identify dna.exe related errors

Important: Some malware camouflages itself as dna.exe. Therefore, you should check the dna.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

This file allows Windows Media Center to download updates for its TV guide feature.
Part of Bit Torrent I assume
become with Bittorrent 509
It comes as part of BitTorrent client and apparantley is to lessen the amount of bandwidth usage from BitTorrent Servers. Causes very bad slow down of internet speed which gets worse over a period of time.
  Jimeny smith   (further information)
DNA is a content delivery service that uses a private and secure managed peer network to give you faster and more reliable access to your favorite websites and videos. DNA is faster because it delivers downloads to you from multiple, nearby sources in parallel. As you download (and for a limited time afterward), your network connection is used to deliver the content you download to others. Your connection is used only when it is idle; so, your internet performance is never slowed.
  Ron Gross   (further information)
it is part of bit torrent client program. showed up after install
Bit Torrent DNA
  Tom   (further information)
bittorrent component
  fartypants   (further information)
it's an executable for bittorrent
  Spanky   (further information)
It was installed when I installed the BitTorrent client from It was added to the \CurrentVersion\Run location as described.
  Tom Knorr  
DNA is an application belonging to the BitTorrent Client. DNA.EXE can be usually be found in the c:\Program Files\BitTorrent_DNA folder. It is not a wrom, trojan, or virus.
  Crash Override   (further information)
A Process of Bitorrent software
  JohnG   (further information)
It belongs to bittorrent
Unnötiges Programm, eventuell schädlich
  Hans Müller  
I Think that it is related to Bittorrent the toorrent file downloader....great internet surfing speed improvment after ended
  Alex   (further information)
BitTorrent is taking another try at legal torrenting by applying the power of peering to content its partners want to be shared, free files and streaming video. The new service, BitTorrent DNA (Delivery Network Accelerator), uses torrents to assist in sharing these files with their users. It effectively creates a virtual network of viewers’ computers that will share amongst themselves to speed up downloads for popular files from your servers.
  PANDORA   (further information)
dna.exe is a program used by bittorrent to help connect with multiple users at one time and contains nothing harmful
pertaining to bitorrent
dna.exe is a part of bittorrent p2p program. not dangerous.
BitTorrent DNATM is a content delivery service that uses a secure, private, managed peer network to power faster, more reliable, more efficient delivery of richer content. BitTorrent DNA works with your existing CDN or origin servers, seamlessly accelerating your downloads or HTTP media streams.
  Freddy   (further information)
Bittorrent Inc. claims responsibility for this process. They say it is harmless, but ZoneAlarm Pro thinks it sends Email, not data packets. This could be simply the protocol used, or spam.
  Jay Lechnyr   (further information)
Ordner: C:\Programme\Bittorrent_DNA
it's bittorrent
bit torrent component
  Ethel Grunt.   (further information)
a part of bittorrent that aparently speeds downloads and peer finding up. the link says it has quite a few negative aspects tho.
  james_whatsit   (further information)
hi there i recently installed bittorrent 6 on my pc and kaspersky internet security found and blocked dna.exe during the installation it is also located in the bittorrent folder
  Sir Toby  
It is a part of Bittorrent. Search dna.exe @ google, first link explains it all
  Eddy   (further information)
It's a bittorrent program. It should be about 300k.
  Anon   (further information)
It's a network accelerator for Bit Torrent.
it's malware - can't be removed
DNA.exe is not needed for bittorrent to run perfectly. If I read the comments at the bittorrent website and the dna website, I cannot conclude anything else then this is spyware. If you uninstall bittorrent, dna remains. You are never warned when it installs and you never loose it if not manual taking it out again.
  jan valk  
Part of BitTorrent but my Vista firewall warned for the installation. Can be dangerous, don't think it's nessecary
  hat on the bed  
This file is also known as the BTDNA.exe and is installed with the Beta uTorrent. The file is not a harm to anything, but it can lead to conflicts with privacy and perhaps even exploitable data. To remove this file, look in the links provided.
  xosuitehearts   (further information)
Seems to have come with ACE online bundled it Pando media booster
  James S   (further information)
I have it running at 90% + on a new build windows 2003 server running on a VMware hosst after restoring from a snapshot. This server is in a test domain that has no internet connection and running SEP11 so there is no chance it is from an external source
Computer Associates Distributed Intelligence Architecture
  Tizz   (further information)
I think it has been responsible for tens of unwanted internet sessions-I was uploading torrents and didn't even know it! (This caused my internet to fail(reset modem) more than 10X a day.
  Dirty Traffic  
It is part of a Computer Assocites program
If found in an enterprise setting, It is part of CA Technologies' Unicenter monitoring product.
  bill e-goat   (further information)

Rating chart

Summary: Average user rating of dna.exe: based on 43 votes with 39 user comments. 6 users think dna.exe is essential for Windows or an installed application. 6 users think it's probably harmless. 13 users think it's neither essential nor dangerous. 14 users suspect danger. 4 users think dna.exe is dangerous and recommend removing it. 8 users don't grade dna.exe ("not sure about it").

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Best practices for resolving dna issues

A clean and tidy computer is the key requirement for avoiding problems with dna. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the dna.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

dna.exe [all]