SID: 2034187

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_10_14, deployment Perimeter, deployment SSLDecrypt, malware_family Lazarus, signature_severity Major, updated_at 2021_10_14

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "Host|3a 20|www.onlinedocpage.org|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^\/(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/U"

Special Options:

  • http_method

  • fast_pattern

  • http_header

  • http_header

source