""ET INFO Windows Update/Microsoft FP Flowbit""
SID: 2023818
Revision: 2
Class Type: not-suspicious
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_02_01, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2023_04_14
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: ".windowsupdate.com|0d 0a|"
Within:
PCRE: "/.windowsupdate.com\r?$/Hmi"
Special Options:
- http_header