""ET TROJAN Cobalt Strike Malleable C2 Profile wordpress_ Cookie Test""

SID: 2033158

Revision: 4

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_06_22, deployment Perimeter, malware_family Cobalt_Strike, performance_impact Moderate, signature_severity Major, updated_at 2024_04_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "|0d 0a|Cookie|3a 20|wordpress"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^_?=?(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/C"

Special Options:

  • fast_pattern

  • http_header

  • http_header

source