alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Waledac FACEPUNCH Traffic Detected"; flow:to_server,established; http.method; content:"POST"; depth:4; http.header; content:"X-Request-Kind-Code|3a 20|"; fast_pattern; http.user_agent; content:"Mozilla"; startswith; http.referer; content:"Mozilla"; nocase; bsize:7; reference:url,trendmicro.com/cloud-content/us/pdfs/security-intelligence/white-papers/wp_infiltrating_the_waledac_botnet_v2.pdf; classtype:trojan-activity; sid:2017455; rev:8; metadata:created_at 2013_09_11, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_21;)