alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MOBILE_MALWARE Android Gunpoder Checkin"; flow:to_server,established; http.uri; content:"/landing?c="; fast_pattern; content:"&g="; content:"&a="; content:"&s1="; content:"&s2="; content:"&s3="; content:"&s4="; content:"&s5="; content:"&s6="; content:"&s7="; content:"&s8="; content:"&s9="; content:"&s10="; content:"&s11="; http.user_agent; content:"|20|Android|20|"; http.header_names; content:!"Referer|0d 0a|"; reference:url,researchcenter.paloaltonetworks.com/2015/07/new-android-malware-family-evades-antivirus-detection-by-using-popular-ad-libraries/; reference:md5,b0b2cd71b4d15bb5f07b8315d7b27822; classtype:trojan-activity; sid:2021392; rev:5; metadata:affected_product Android, attack_target Mobile_Client, created_at 2015_07_07, deployment Perimeter, signature_severity Major, tag Android, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_01, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)