""ET CURRENT_EVENTS Privnote Landing Page 2024-04-11""

SID: 2051995

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_04_11, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Phishing, updated_at 2024_04_11, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "privnote"

  • Value: "<form action="

  • Value: "|2f|note|2f|create|22 20|method|3d 22|post|22 20|id|3d 22|create|5f|note|22|"

  • Value: "you can send notes that will self-destruct after being read"

Within:

PCRE:

Special Options:

  • http_stat_code

  • file_data

  • nocase

  • nocase

source