Then the entry may be a Trojan.

Please run HijackThis! again. Ewido may have removed a Trojan. If the entry has gone, then no problem.

If it is still there, you can submit the file for analysis at VirusTotal, or try an online scan from Kaspersky. This should confirm if the file is malicious:

http://www.virustotal.com/en/indexf.html

http://www.kaspersky.com/virusscanner