""ET TROJAN PacketShare Proxy Connection Heartbeat (POST)""

SID: 2048497

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2023_10_09, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_10_09

Reference:

  • md5

  • 50d9cf756466a313ac0288c48ed2857c

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/api/heartbeat"

  • Value: "|5f|brand|3a 20|packetshare|0d 0a|"

  • Value: "api.packetshare.io"

  • Value: "_os_version|3a 20|"

  • Value: "_device_os|3a 20|"

  • Value: "_timestamp|3a 20|"

Within:

PCRE: "/^_timestamp\x3a\x20[^\r\n]+[\r\n]+$/Hm"

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source