""ET ATTACK_RESPONSE Probably Evil Long Unicode string only string and unescape 2""

SID: 2017500

Revision: 2

Class Type: bad-unknown

Metadata: created_at 2013_09_20, deployment alert_only, updated_at 2023_04_19

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "unescape"

  • Value: "|27|%u"

  • Value: !"|27|"

Within: 120

PCRE: "/^[a-f0-9]{4}([\%\]u[a-f0-9]{4}){20}/Ri"

Special Options:

  • file_data

  • nocase

source