""ET CURRENT_EVENTS Phishing Fake Mailbox Quota Increase Messages 2016-05-25""

SID: 2031989

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_05_25, deployment Perimeter, signature_severity Major, tag Phishing, updated_at 2017_10_02

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: to_client,established

Contents:

  • Value: "//configure destination URL"

  • Value: "Upgrading your mailbox"

  • Value: "Upgrade Successful"

  • Value: "added to your mail quota"

  • Value: "//Do not edit below this line"

Within:

PCRE:

Special Options:

  • file_data

  • nocase

  • nocase

  • nocase

  • nocase

  • nocase

source