""ET INFO Windows Powershell User-Agent Usage""

SID: 2033355

Revision: 2

Class Type: not-suspicious

Metadata: attack_target Client_Endpoint, created_at 2021_07_16, deployment Perimeter, signature_severity Informational, updated_at 2021_07_16

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Mozilla/"

  • Value: ") WindowsPowerShell/"

Within:

PCRE:

Special Options:

  • fast_pattern

  • http_header

source