alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT Fake FlashPlayer Update Leading to CoinMiner M1 2018-10-12"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/flashplayer_down.php?clickid="; fast_pattern; pcre:"/^[a-z0-9]{6,15}$/Ri"; reference:url,researchcenter.paloaltonetworks.com/2018/10/unit42-fake-flash-updaters-push-cryptocurrency-miners/; classtype:coin-mining; sid:2026474; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_12, deployment Perimeter, confidence High, signature_severity Major, tag Coinminer, tag SocEng, tag CoinMinerCampaign, updated_at 2020_08_26, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1496, mitre_technique_name Resource_Hijacking;)