alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Justice AV Solutions Viewer Backdoor CnC Checkin (CVE-2024-4978)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:17; content:"/gateway/register"; http.request_body; content:"|7b 22|hostname|22 3a 22|"; startswith; content:"|22 2c 22|arch|22 3a 22|AMD64|22 2c 22|os_version|22 3a 22|Windows"; fast_pattern; within:200; reference:cve,2024-4978; reference:url,www.rapid7.com/blog/post/2024/05/23/cve-2024-4978-backdoored-justice-av-solutions-viewer-software-used-in-apparent-supply-chain-attack; classtype:trojan-activity; sid:2053040; rev:1; metadata:attack_target Client_and_Server, tls_state plaintext, created_at 2024_05_30, cve CVE_2024_4978, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, updated_at 2024_05_30; target:src_ip;)