alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Schneebly Posting ScreenShot"; flow:established,to_server; http.method; content:"POST"; nocase; http.uri; content:"/viewimage.php?s="; nocase; content:!"&"; distance:0; http.header_names; content:!"Referer|0d 0a|"; http.request_body; content:"filename="; content:"JFIF"; distance:0; reference:url,www.alienvault.com/open-threat-exchange/blog/microsoft-office-zeroday-used-to-attack-pakistani-targets; classtype:trojan-activity; sid:2017689; rev:3; metadata:created_at 2013_11_07, confidence Medium, signature_severity Major, updated_at 2020_04_27;)