alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE W32/Liftoh.Downloader Get Final Payload Request";
flow:established,to_server;
http.uri;
content:"/get/";
content:"/final";
http.cookie;
content:"ip="; depth:3;
pcre:"/^[0-9]{1,3}\x2E[0-9]{1,3}\x2E[0-9]{1,3}\x2E[0-9]{1,3}/R";
reference:url,www.secureworks.com/cyber-threat-intelligence/threats/spam-campaign-delivers-liftoh-downloader/;
classtype:trojan-activity;
sid:2017870; rev:4;
metadata:created_at 2013_12_17, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_27;
)