""ET CURRENT_EVENTS Successful Maersk Phishing 2016-02-25""

SID: 2032429

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_02_25, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2016_02_25, 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: ".php"

• Value: ".php?"

• Value: "username="

• Value: "&secretkey="

Within:

PCRE: "/\x0d\x0aReferer\x3a\x20[^\r\n]+?=[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+.[A-Za-z]{2,6}\r\n/Hi"

Special Options:

• http_method

• http_uri

• nocase

• http_header

• http_client_body

• fast_pattern

• http_client_body

• nocase

source