""ET CURRENT_EVENTS Possible Microsoft RDP Client for Mac RCE""

SID: 2023755

Revision: 1

Class Type: attempted-admin

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2017_01_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2017_01_24

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "rdp|3a 2f 2f|"

  • Value: "drivestoredirect"

  • Value: "rdp|3a 2f 2f|"

Within:

PCRE: "/^\S+?drivestoredirect/Ri"

Special Options:

  • nocase

  • fast_pattern

  • nocase

  • nocase

source