""ET INFO Observed Interesting Content-Type Inbound (application/x-sh)""

SID: 2031747

Revision: 4

Class Type: policy-violation

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2021_03_02, deployment Perimeter, performance_impact Significant, signature_severity Informational, updated_at 2024_04_15

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "Content-Type|3a 20|application/x-sh"

Within:

PCRE: "/^Content-Type\x3a\x20application/x-sh(?:\x3b|\r\n)/Hm"

Special Options:

  • fast_pattern

  • http_header

source