Versions (4)
Version DetailsCurrent
Rev: 2 • Aug 4, 2019, 12:00 PMET MALWARE Covenant Framework HTTP Beacon
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Covenant Framework HTTP Beacon"; flow:established,to_server; threshold:type limit, count 1, seconds 60, track by_src; http.method; content:"POST"; http.request_body; content:"=eyJHVUlEIjoi"; fast_pattern; pcre:"/^.+(IlR5cGUiO|JUeXBlIj|iVHlwZSI6)/R"; reference:url,github.com/cobbr/Covenant; reference:url,posts.specterops.io/entering-a-covenant-net-command-and-control-e11038bcf462; classtype:trojan-activity; sid:2027793; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_08_04, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2020_08_31, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)
Aug 4, 2019, 12:00 PM
Aug 31, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules