""ET WEB_SERVER Generic PHP Webshell Activity""

SID: 2048557

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Web_Server, created_at 2023_10_13, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_10_13, reviewed_at 2023_10_13

Reference:

  • md5

  • f899d6cbe1be6395a0fa2a802b8eb579

Protocol: tcp

Source Network: $HOME_NET

Source Port: $HTTP_PORTS

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "/home/aravalcl/public_html/"

  • Value: "ob_start|28 29|"

  • Value: ">Command>"

  • Value: "Software|3a|"

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source