But Amazon on Thursday said it has no evidence of such an attack, which would be in violation of its terms and conditions, which specifically prohibits denial-of-service attacks.
"AWS employs a number of automated detection and mitigation techniques to prevent the misuse of our services," the Amazon Web Services statement said. "In cases where the misuse is not detected and stopped by the automated measures, we take manual action as soon as we become aware of any misuse. Our terms are clear about this. The activity being reported is not currently happening on AWS.
[Amazon Web Services is a division of Amazon.com. Washington Post owner Jeffrey P. Bezos is Amazon's chief executive.]
The counterattack tactic, the report said, has been popular with media companies looking to limit piracy in the past -- something that groups such as the Motion Picture Association of America have vehemently denied happening in the past.
Sony Pictures Entertainment did not immediately respond to a request for comment.