""ET CURRENT_EVENTS Successful Chase Phish 2015-09-24""

SID: 2031773

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_09_24, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2017_10_10, 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: "GET"

  • Value: ".php?"

  • Value: "=3d3d3d3d3d3d3d3d3d"

  • Value: "5573657220496e666f"

  • Value: "557365724944"

  • Value: "50617373776f7264"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • nocase

  • http_uri

  • fast_pattern

  • nocase

  • http_uri

  • http_uri

  • nocase

  • http_uri

source