""ET CURRENT_EVENTS Suspicious File Download Post-Phishing 2016-05-25""

SID: 2031990

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_05_25, deployment Perimeter, former_category PHISHING, signature_severity Major, tag Phishing, updated_at 2020_07_14

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: from_server,established

Contents:

  • Value: "200"

  • Value: "Content-Type|3a 20|text/html"

  • Value: "howLongToWait"

  • Value: "urlOfDownloadContent"

  • Value: "triggerDownload"

  • Value: "urlOfRedirectLocation"

  • Value: "startRedirect"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

  • fast_pattern

  • nocase

  • nocase

  • nocase

  • nocase

  • nocase

source