""ET CURRENT_EVENTS Successful Mailbox Update Phish 2016-02-17 M2""

SID: 2031968

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_02_17, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2016_02_17, 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: to_client,established

Contents:

  • Value: "200"

  • Value: "Content-Type|3a 20|text/html"

  • Value: "Your e-mail account will be verify"

  • Value: "DO NOT RESEND"

  • Value: "MESSAGE IS FROM THE SYSTEM ADMIN"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

  • nocase

  • nocase

  • nocase

source