""ET TROJAN Linux/Moose HTTP CnC Beacon Response""
SID: 2021148
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2015_05_26, deployment Perimeter, signature_severity Major, tag c2, updated_at 2015_05_26, 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: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,from_server
Contents:
- Value: "Server|3a 20|Apache/20.2.25 (RedHat|29 0d 0a|"
Within:
PCRE:
Special Options:
- http_header