""ET TROJAN J-Spy JSP webshell request""

SID: 2036648

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Web_Server, created_at 2022_05_20, deployment Perimeter, deployment SSLDecrypt, malware_family J_spy, performance_impact Low, signature_severity Major, tag WebShell, updated_at 2022_05_20

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: ".jsp"

  • Value: "Referer|3a 20|"

  • Value: ".jsp"

  • Value: "action="

Within:

PCRE: "/^(?:FileManager|PortScan|ExecuteCommand|DatabaseManager)/R"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • fast_pattern

  • http_client_body

source