alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Linux DarkRadiation Ransomware Telegram Activity"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/bot1322235264:AAE7QI-f1GtAF_huVz8E5IBdb5JbWIIiGKI/sendMessage?chat_id="; startswith; fast_pattern; http.user_agent; content:"curl/"; startswith; http.host; content:"api.telegram.org"; reference:url,www.trendmicro.com/en_us/research/21/f/bash-ransomware-darkradiation-targets-red-hat--and-debian-based-linux-distributions.html; classtype:trojan-activity; sid:2033161; rev:3; metadata:affected_product Linux, attack_target Client_Endpoint, created_at 2021_06_22, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_15, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)