""ET TROJAN Possible GoBruteforcer Payload Retrieval Attempt""

SID: 2044632

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Linux, attack_target Linux_Unix, created_at 2023_03_15, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2023_03_15

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/.x/"

  • Value: "/cache_init"

Within:

PCRE: "/\/.x\/(?:64|32|arm)\/cache_init$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • fast_pattern

source