""ET CURRENT_EVENTS Possible Successful Generic Phish (set) 2019-02-13""

SID: 2026902

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2019_02_13, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2019_02_13, 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: "mail=" Depth: 5

• Value: "|25|40"

• Value: "&pass="

Within:

PCRE: "/^mail=[^\x25]+\x2540[^&]+&pass=[^&]+$/Pi"

Special Options:

• http_method

• nocase

• fast_pattern

• http_client_body

• http_client_body

• nocase

• http_client_body

source