""ET TROJAN Covenant Framework HTTP Beacon""
SID: 2027793
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_08_04, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_08_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "POST"
-
Value: "=eyJHVUlEIjoi"
Within:
PCRE: "/eyJHVUlEIjoi.+(IlR5cGUiO|JUeXBlIj|iVHlwZSI6)/Psm"
Special Options:
-
http_method
-
http_client_body
-
fast_pattern