""ET CURRENT_EVENTS Successful Personalized Adobe PDF Online Phish 2016-10-26""

SID: 2032462

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_10_26, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2016_10_26, 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?e="

• Value: "p=" Depth: 2

• Value: "&submit="

Within:

PCRE: "/.php\?e=[a-zA-Z0-9+&-]+(?:.[a-zA-Z0-9_+&-]+)*@(?:[a-zA-Z0-9-]+.)+[a-zA-Z]{2,7}$/U"

Special Options:

• http_method

• nocase

• http_uri

• fast_pattern

• nocase

• http_client_body

• nocase

• http_client_body

source