""ET WEB_CLIENT Suspicious JS Refresh - Possible Phishing Redirect Feb 24 2017""

SID: 2024007

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_02_24, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2017_02_24, 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: from_server,established

Contents:

• Value: "200"

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

• Value: "self.location.replace("

Within: 100

PCRE: "/\s(?P[^)]+)\s).+window\s.\slocation\s=\s(\s*(?P=var)/Rsi"

Special Options:

• http_stat_code

• http_header

• file_data

source