""ET CURRENT_EVENTS Successful Fake Webmail Quota Phish 2015-09-10""

SID: 2031727

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_09_10, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2017_10_13, 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,to_client

Contents:

  • Value: "SUCCESSFULLY VALIDATED"

  • Value: "MAILBOX HAVE BEEN SUCCESSFULLY"

  • Value: "QUOTA HAVE BEEN SCHEDUELED"

  • Value: "WITHIN 24 HOURS"

Within:

PCRE:

Special Options:

  • file_data

  • nocase

  • nocase

  • nocase

  • nocase

source