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.
Dna.exe file information
The process known as BitTorrent DNA belongs to software Microsoft Office (version 2002 Std) by BitTorrent (www.bittorrent.com).
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 (47% 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 65% dangerous, however you should also read the user reviews.
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.
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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.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: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Other processes
mbae64.exe e.exe kdbsync.exe dna.exe toshiba.exe residentagent.exe lxctcoms.exe linkinfo.dll desktopok.exe cogad.exe flashenhancer.dll [all]
Score
User Comments
PJ
max
Jimeny smith (further information)
Ron Gross (further information)
petie
Tom (further information)
fartypants (further information)
Spanky (further information)
Tom Knorr
Crash Override (further information)
JohnG (further information)
ME
Hans Müller
Alex (further information)
PANDORA (further information)
james
mike
Freddy (further information)
Jay Lechnyr (further information)
David
Ethel Grunt. (further information)
james_whatsit (further information)
Sir Toby
Eddy (further information)
Anon (further information)
texxs
jan valk
hat on the bed
xosuitehearts (further information)
James S (further information)
MegaMonsterBoy
Tizz (further information)
Dirty Traffic
dazza
bill e-goat (further information)
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").