alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE CoolReaper User-Agent"; flow:established,to_server; http.user_agent; content:"UAC/"; depth:4; fast_pattern; content:"|28|Android|20|"; distance:0; reference:url,researchcenter.paloaltonetworks.com/2014/12/coolreaper-revealed-backdoor-coolpad-android-devices/; classtype:trojan-activity; sid:2019960; rev:4; metadata:created_at 2014_12_17, confidence High, signature_severity Major, updated_at 2020_05_14;)