alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (adlib)"; flow:established,to_server; http.header; content:"User-Agent|3A 20|adlib/"; reference:url,blog.trendmicro.com/connections-between-droiddreamlight-and-droidkungfu/; classtype:bad-unknown; sid:2013967; rev:5; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2011_11_24, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2022_06_27;)