""ET CURRENT_EVENTS Possible Successful Generic Phish (set) 2021-03-18""

SID: 2032161

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_03_18, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2021_03_18, 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: "uname=" Depth: 6

• Value: "&pass"

Within:

PCRE: "/^uname=[^&]*&pass/Pi"

Special Options:

• http_method

• nocase

• fast_pattern

• http_client_body

• nocase

• http_client_body

source