""ET WEB_CLIENT SUSPICIOUS Microsoft-Edge protocol in use (Observed in Magnitude EK)""

SID: 2024030

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2017_03_06, malware_family BrokenBrowser, signature_severity Major, updated_at 2017_03_06

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "microsoft-edge|3a|http"

  • Value: "location"

  • Value: "iframe"

  • Value: "contentWindow"

Within:

PCRE:

Special Options:

  • file_data

  • nocase

  • fast_pattern

  • nocase

  • nocase

  • nocase

source