""ET CURRENT_EVENTS Observed Possible Phishing Landing Page 2021-06-29""

SID: 2033216

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_07_01, deployment Perimeter, former_category PHISHING, signature_severity Critical, tag Phishing, updated_at 2022_05_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established, from_server

Contents:

• Value: ""

• Value: "method|3d 22|post|22|"

• Value: "encType|3d 22|multipart/form-data|22|"

• Value: "id|3d 22|rJ6e8Wwhpou|22|"

• Value: "novalidate|3d 22 22|"

Within:

PCRE:

Special Options:

• file_data

• fast_pattern

source