""ET CURRENT_EVENTS Successful Personalized Email Phish 2016-07-22""

SID: 2032688

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_07_22, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2017_10_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

• Value: "POST"

• Value: ".php"

• Value: ".php?email="

• Value: "email=" Depth: 6

• Value: "&pass="

Within:

PCRE: "/.php$/U"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

• nocase

• http_client_body

• nocase

• http_client_body

source