Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE W32/Citadel Conf.bin Download From CnC Server"; flow:established,to_client; http.header; content:"filename=|22|%2e/files/conf.bin|22|"; nocase; reference:url,malwaremustdie.blogspot.co.uk/2013/04/wireshark-analysis-of-citadel-trojan.html; reference:url,seifreed.es/docs/Citadel%20Trojan%20Report_eng.pdf; classtype:command-and-control; sid:2016743; rev:3; metadata:created_at 2013_04_09, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_23;)