""ET TROJAN Cylance Ransomware Sending System Information (POST)""

SID: 2044917

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_04_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_04_10

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: ".php"

  • Value: "User-Agent|3a 20|AppleWebKit/587.38 (KHTML, like Gecko)|0d 0a|"

  • Value: "eyJpcCI6" Depth: 8

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

  • http_client_body

  • http_header

source