alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TeamPCP CnC Activity Observed"; flow:established,to_server; http.header; content:"x|2d|filename|3a 20|tpcp|2e|tar|2e|gz"; nocase; reference:md5,ab2a0322fd0d3616a0f262fc5958d033; reference:url,wiz.io/blog/threes-a-crowd-teampcp-trojanizes-litellm-in-continuation-of-campaign; classtype:trojan-activity; sid:2068457; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Linux, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_03_27, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag c2, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_03_27, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)