alert tcp $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET COINMINER W32/BitCoinMiner.MultiThreat Getblocktemplate Protocol Server Coinbasetxn Begin Mining Response";
flow:established,to_client;
content:"|22|result|22 3A| {"; depth:50;
content:"|22|coinbasetxn|22 3A| {"; within:30;
content:"|22|data|22 3A| |22|"; within:30;
reference:url,en.bitcoin.it/wiki/Getblocktemplate;
classtype:coin-mining;
sid:2017879; rev:3;
metadata:attack_target Client_Endpoint, created_at 2013_12_17, deployment Perimeter, confidence High, signature_severity Major, tag Coinminer, updated_at 2019_07_26, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1496, mitre_technique_name Resource_Hijacking;
)