alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Donot (APT-C-35) Stage 1 Requesting Main Payload"; flow:established,to_server; urilen:10; http.method; content:"GET"; http.uri; content:"/pushAgent"; fast_pattern; http.accept; content:"*/*"; depth:3; endswith; http.accept_enc; content:"gzip,|20|deflate"; depth:13; endswith; http.connection; content:"Keep-Alive"; http.header_names; content:"User-Agent"; content:!"Referer"; content:!"Cache"; reference:url,ti.360.net/blog/articles/donot-group-is-targeting-pakistani-businessman-working-in-china-en/; classtype:targeted-activity; sid:2026729; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_12_14, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Donot, tag APT_C_35, updated_at 2020_09_16;)