""ET TROJAN W32/HelloBridge.Backdoor Login CnC Beacon""
SID: 2018475
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2014_05_14, deployment Perimeter, signature_severity Major, tag c2, updated_at 2014_05_14, 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: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: "/el/slogin.php?uid="
Within:
PCRE: "/^\x2Fel\x2Fslogin\x2Ephp\x3Fuid\x3D[a-f0-9]{32}$/U"
Special Options:
- http_uri