Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Download file with BITS via LNK file (Likely Malicious)"; flow:established,from_server; file_data; content:"|4c 00 00 00|"; within:4; content:"|00|b|00|i|00|t|00|s|00|a|00|d|00|m|00|i|00|n|00|"; nocase; content:"|00|t|00|r|00|a|00|n|00|s|00|f|00|e|00|r|00|"; nocase; classtype:trojan-activity; sid:2021092; rev:2; metadata:created_at 2015_05_13, confidence Medium, signature_severity Major, updated_at 2019_07_26;)