""ET SCAN Nessus User Agent""

SID: 2002664

Revision: 12

Class Type: attempted-recon

Metadata: created_at 2010_07_30, updated_at 2010_09_15

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a|"

  • Value: "Nessus"

Within:

PCRE: "/^User-Agent\:[^\n]+Nessus/Hmi"

Special Options:

  • http_header

  • nocase

  • http_header

  • fast_pattern

  • nocase

source