Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

One of my user's Outlook create files with the ".com" extension when they view an e-mail that contains JPG. There's no detectable virus or trojan on this computer. However, Comodo is complaining about ".com" files being created automatically. Is there a way to change the file extension so that it doesn't create executable files?

UPDATE: This happens to ALL jpg that I receive, regardless of source.

share|improve this question
It's still a virus - have you tried my suggestions below? Also you could contact comodo support and ask them to analyze the file for you. – Zypher Dec 18 '09 at 5:21
I'm not sure what file you want me to send to Comodo since EVERY jpg is saved with a .com file extension. – Anonymous Dec 18 '09 at 18:06

If viewing a JPEG results in a '.com' file being created, it's a virus.

Detected or not, it's a virus.

share|improve this answer

To expand on Kieran's answer (and yes that IS a virus)

  1. Make sure your virus defs are up to date and rescan
  2. Do a full system scan after you have updated virus defs
  3. Try another scanning tool, such as Stinger
share|improve this answer
I have the latest Symantec installed and it have detected no virus. I've ran Stinger (build Nov 24) and found nothing. – Anonymous Dec 18 '09 at 18:06

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.