Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE PS1Loader Encoded Profiling POST"; flow:established,to_server; http.request_line; content:"POST /c/"; startswith; fast_pattern; http.user_agent; content:"WindowsPowerShell"; http.request_body; content:"ps="; startswith; content:"&magic="; distance:0; content:"&domain="; distance:0; content:"&systeminfo="; distance:0; reference:md5,946f19e1af51a042aea63a9e8ce8ce63; classtype:trojan-activity; sid:2044345; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_02_24, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_24;)