email virus

All my yahoo email contacts are receiving strange emails from my email address. Most of the emails they are receiving are just a link which leads them to a pharmacy website. My contacts have emailed me and told me I have a virus. Can you please help me? Thanks so much

Hello.

Download OTL by OldTimer to your Desktop.

• Close all windows and double click OTL.exe
  
• Click Run Scan and let the program run uninterrupted
  
• It will produce two logs for you, one will pop up - OTL.txt, the other will be saved on your Desktop - Extras.txt. Post both logs in this thread.
  
• You may need to use two posts to get it all.