Rule History

alert tcp $EXTERNAL_NET 1024: -> $HOME_NET any (msg:"ET MALWARE Lethic Spambot CnC Connect Command (port 25 specifically)"; flowbits:isset,ET.lethic.established; flow:established,from_server; dsize:11; content:"|02|"; offset:4; depth:5; content:"|00 19|"; offset:9; reference:url,www.m86security.com/trace/spambotitem.asp?article=1205; classtype:command-and-control; sid:2010649; rev:3; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)