alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Win32/MagicRAT CnC Checkin M2"; flow:established,to_server; http.method; content:"POST"; http.uri.raw; content:"/adm_bord/login_new_check.php|25 32 30|"; bsize:32; http.header_names; content:!"Referer"; http.content_type; content:"boundary|3d 22|boundary_.oOo._"; http.request_body; content:"--boundary_.oOo._"; startswith; content:"name|3d 22|type|22 3b|"; content:"name|3d 22|id|22 3b 0d 0a 0d 0a|"; pcre:"/^[a-f0-9]{32}/R"; content:"name|3d 22|session|22 3b 0d 0a 0d 0a|"; pcre:"/^[a-z0-9]{19}/R"; content:"name|3d 22|file|22 3b 20|filename|3d 22|"; pcre:"/^[a-f0-9]{32}\.gif\"/R"; content:"information|24 24 24|"; fast_pattern; reference:url,blog.talosintelligence.com/2022/09/lazarus-magicrat.html; reference:md5,b4c9b903dfd18bd67a3824b0109f955b; classtype:trojan-activity; sid:2038766; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_09_07, deployment Perimeter, former_category MALWARE, malware_family MagicRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;)