""ET SCAN Mirai Variant User-Agent (Inbound)""

SID: 2029024

Revision: 3

Class Type: attempted-admin

Metadata: affected_product Linux, attack_target IoT, created_at 2019_11_21, deployment Perimeter, signature_severity Minor, updated_at 2024_01_31

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Sector"

Within:

PCRE: "/^User-Agent\x3a\x20Sector(?:(?:\/|\s)[0-9].0)?$/Hmi"

Special Options:

  • http_header

  • fast_pattern

source