""ET WEB_CLIENT Possible Microsoft Edge Remote Command Execution PoC (CVE-2018-8495)""

SID: 2026488

Revision: 2

Class Type: attempted-user

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_10_15, cve CVE_2018_8495, deployment Perimeter, signature_severity Major, updated_at 2018_10_15

Reference:

  • cve

  • 2018-8495

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "wshfile:"

  • Value: "../../"

  • Value: "SyncAppvPublishingServer.vbs"

  • Value: "window.onkeydown=e=>"

  • Value: "window.onkeydown=z="

  • Value: "click()"

Within: 200

PCRE:

Special Options:

  • file_data

  • nocase

  • fast_pattern

  • nocase

  • nocase

  • nocase

source