alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE NewsPenguin CnC Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/search:"; nocase; fast_pattern; isdataat:!13,relative; pcre:"/\/search:[a-z0-9]{12}$/i"; reference:url,blogs.blackberry.com/en/2023/02/newspenguin-a-previously-unknown-threat-actor-targets-pakistan-with-advanced-espionage-tool; classtype:trojan-activity; sid:2044171; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_02_10, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_19, reviewed_at 2023_09_19;)