""ET INFO Lucy Security - Server Reply""

SID: 2042970

Revision: 4

Class Type: bad-unknown

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2022_12_20, deployment Perimeter, deployment SSLDecrypt, malware_family Lucy, confidence High, signature_severity Informational, updated_at 2023_12_22

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "Server|3a 20|Lucy|3a 20|"

  • Value: "Cache|2d|Control|3a 20|no|2d|store|2c 20|no|2d|cache|2c 20|must|2d|revalidate|2c 20|post|2d|check|3d|0|2c 20|pre|2d|check|3d|0|0d 0a|"

Within:

PCRE:

Special Options:

  • http_header

  • fast_pattern

  • http_header

source