ET MALWARE Possible SSload Interactive Shell whoami Output

alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Possible SSload Interactive Shell whoami Output";
    flow:established,to_server;
    dsize:<150;
    content:"|7b 22|user|22 3a 22|"; startswith;
    content:"|20 28|admin|29 22 2c 22|host|22 3a 22|"; fast_pattern; within:50;
    content:"|22 7d|"; endswith;
    reference:md5,67bb8840ab72dc31713751adccbbf6a1;
    classtype:trojan-activity;
    sid:2052192; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_04_19, deployment Perimeter, malware_family SSLoad, performance_impact Low, confidence Low, signature_severity Major, updated_at 2024_04_19, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)