SID: 2031614

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2021_02_11, deployment Perimeter, malware_family KeitaroTDS, signature_severity Major, updated_at 2022_03_25

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "Cookie|3a 20|9487d=eyJ0e"

  • Value: "302"

  • Value: "9487d=eyJ0e"

Within:

PCRE: "/^9487d=eyJ0e[A-Z0-9_-.]{20,300}\x3b/Ci"

Special Options:

  • http_stat_code

  • http_cookie

source