""ET SCAN Possible Nmap User-Agent Observed""

SID: 2024364

Revision: 3

Class Type: web-application-attack

Metadata: affected_product Any, attack_target Client_and_Server, created_at 2017_06_08, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2017_06_13, reviewed_at 2024_05_06

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: any

Destination Port: any

Flow: to_server,established

Contents:

  • Value: "User-Agent|3a|"

  • Value: "|20|Nmap"

Within:

PCRE:

Special Options:

  • http_header

  • http_header

  • fast_pattern

source