""ET CURRENT_EVENTS Possible PurpleFox EK Framework Landing - Various Exploits""

SID: 2028975

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_14, deployment Perimeter, signature_severity Major, updated_at 2019_11_14

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "<!DOCTYPE html>|0d 0a||0d 0a||0d 0a||0d 0a||0d 0a|<embed src=|22|"

  • Value: ".swf|22|>|0d 0a|"

  • Value: "if (window.ActiveXObject|20 7c 7c 20 22|ActiveXObject|22 20|in window){|0d 0a|document.write(unescape("

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source