""ET INFO Suspicious Terse HTTP Request to textbin""

SID: 2034461

Revision: 1

Class Type: bad-unknown

Metadata: attack_target Client_Endpoint, created_at 2021_11_15, deployment Perimeter, deployment SSLDecrypt, signature_severity Informational, updated_at 2021_11_15

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Host|3a 20|textbin.net|0d 0a|"

  • Value: "GET /raw/" Depth: 9

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • fast_pattern

  • http_header

source