alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected TA450 Activity"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".ps1"; endswith; http.user_agent; content:"Mozilla/4.0|20 28|compatible|3b 20|MSIE 7.0|3b 20|Windows NT 6.2|3b 20|WOW64|3b 20|Trident/8.0|3b 20|"; fast_pattern; startswith; reference:md5,513e8e3ede4f821dad0e3ba3448aca42; reference:url,x.com/suyog41/status/1793935723961143625; classtype:trojan-activity; sid:2052911; 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_05_28, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2024_05_28; target:src_ip;)