alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE ELF/Miner Activity (GET)";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/.sherifu/.k4m3l0t"; bsize:18; fast_pattern;
http.user_agent;
content:"curl/"; startswith;
http.header_names;
content:!"Referer";
reference:md5,99639dffa18356f683dbbbf4a6d3d023;
reference:url,www.bitdefender.com/blog/labs/how-we-tracked-a-threat-group-running-an-active-cryptojacking-campaign;
classtype:trojan-activity;
sid:2033366; rev:1;
metadata:affected_product Linux, attack_target Linux_Unix, created_at 2021_07_21, deployment Perimeter, malware_family ELF_Miner, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_21;
)