""ET CURRENT_EVENTS Successful Citibank Phish 2021-11-10""

SID: 2034411

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_08, deployment Perimeter, signature_severity Major, updated_at 2022_04_18

Reference:

  • md5

  • 52f9a1141716b47fba9fdbb94f7ddb31

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "/citi/"

  • Value: ".php"

  • Value: ".otzo.com"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+.otzo.com/Hmi"

Special Options:

  • http_uri

  • nocase

  • fast_pattern

  • http_uri

  • http_header

source