""ET TROJAN Poseidon Stealer Data Exfiltration Attempt""

SID: 2054173

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_07_01

Reference:

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: "uuid|3a 20|"

  • Value: "user|3a 20|"

  • Value: "buildid|3a 20|"

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded"

  • Value: "PK|03 04|" Depth: 4

  • Value: "__MACOSX/"

Within: 150

PCRE: "/uuid\x3a\x20[a-f0-9]{32}\x0d\x0a/H"

Special Options:

  • http_method

  • http_header

  • http_header

  • http_header

  • fast_pattern

  • http_header

  • http_client_body

  • http_client_body

source