""ET CURRENT_EVENTS Possible Successful Phish to .tk domain Aug 26 2016""

SID: 2023137

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_26, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2017_11_20, 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: ".tk|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • fast_pattern

source