""ET TROJAN Suspected Golang/Zerobot Websocket Activity (GET)""

SID: 2042943

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_12_15, deployment Perimeter, signature_severity Major, updated_at 2022_12_15

Reference:

  • md5

  • 62c11ea75e82611b6ba7d7bf08ed009f

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Go-http-client/1.1|0d 0a|"

  • Value: "Upgrade|3a 20|websocket|0d 0a 0d 0a|"

  • Value: "GET /handle HTTP/1.1"

Within:

PCRE:

Special Options:

  • http_header

  • http_header

  • fast_pattern

source