""ET CURRENT_EVENTS Successful Zimbra Phish 2015-11-03""

SID: 2031689

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_11_03, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2015_11_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: "enable us complete your security updates"

• Value: "wrongly kindly click back"

• Value: "resulting to the deactivation"

Within:

PCRE:

Special Options:

• file_data

• nocase

• nocase

• nocase

• nocase

source