""ET CURRENT_EVENTS Possible Phishing Landing - Data URI Inline Javascript 2016-02-09""

SID: 2031970

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: established,to_client

Contents:

• Value: "200"

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

• Value: "<meta http-equiv"

• Value: "refresh"

• Value: "content="

• Value: "url=data|3a|text/html,http"

Within: 8

PCRE: "/^[^\x22]+<\s?script\s?.+data\x3atext/html\x3bbase64,/Rsi"

Special Options:

• http_stat_code

• http_header

• file_data

• nocase

• nocase

• nocase

source