Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Old/Rare PDF Generator Acrobat Distiller 9.0.0 (Windows)"; flow:from_server,established; flowbits:isset,ET.pdf.in.http; file_data; content:"Acrobat Distiller 9.0.0 (Windows)"; fast_pattern; reference:url,carnal0wnage.attackresearch.com/2013/03/apt-pdfs-and-metadata-extraction.html; classtype:not-suspicious; sid:2016649; rev:3; metadata:created_at 2013_03_22, confidence High, signature_severity Informational, updated_at 2022_03_17;)