""ET TROJAN DPRK HIDDEN COBRA Botnet C2 Host Beacon""

SID: 2024383

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2017_06_14, deployment Perimeter, signature_severity Major, tag c2, updated_at 2017_06_15, 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: any

Source Port: any

Destination Network: any

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|1b 17 e9 e9 e9 e9|" Depth: 6

Within:

PCRE:

Special Options:

  • fast_pattern

source