""ET CURRENT_EVENTS Observed LordEK HTTP POST Request""

SID: 2027788

Revision: 2

Class Type: trojan-activity

Metadata: created_at 2019_08_02, deployment Perimeter, malware_family LordEK, performance_impact Low, signature_severity Major, tag Exploit_Kit, updated_at 2019_08_02

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/?" Depth: 2

  • Value: "|7b 22|flash|22 3a|" Depth: 9

  • Value: "|22|ip_address|22 3a 22|"

  • Value: "|22|country|22 3a 22|"

  • Value: "Referer|3a|"

Within:

PCRE: "/^\/\?(?:[A-Z0-9+/]{4})*(?:[A-Z0-9+/]{2}==|[A-Z0-9+/]{3}=|[A-Z0-9+/]{4})$/Ui"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

source