ET MALWARE sysrv.ELF Exploit Success Payload Request

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE sysrv.ELF Exploit Success Payload Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/ldr.sh"; endswith; fast_pattern;
    http.user_agent;
    pcre:"/^(?:curl|wget)_?(?:c(?:ve_20(?:1(?:(?:7_1161|8_760)0|9_10758)|20_16846)|url_xxljobUnauth)|tp5)$/";
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,mblogs.akamai.com/sitr/2021/03/another-golang-crypto-miner-on-the-loose.html;
    reference:url,blogs.juniper.net/en-us/threat-research/sysrv-botnet-expands-and-gains-persistence;
    classtype:trojan-activity;
    sid:2033094; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_06_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_04;
)