Active rule currently published.
Atomicorp.com WAF Rules: Fake image file shell attack
This rule detects non image content on an image file. This method is sometimes used to hide shells and other unauthorized files as image files.
There are no known false positives for this rule. It is not recommended that you disable this rule if you have a false positive. If you believe this is a false positive, please report this to our security team to determine if this is a legitimate case, or if its clever attack on your system. Instructions to report false positives are detailed on the Reporting False Positives wiki page. If it is a false positive, we will fix the issue in the rules and get a release out to you promptly.
If you know that this behavior is acceptable for your application, you can tune by following the guidance on the Tuning the Atomicorp WAF Rules page.
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