""ET TROJAN Suspected PrivateLoader Activity (POST)""

SID: 2049837

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_12_26, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2023_12_26

Reference:

  • md5

  • 7b81b2c0c7fec00ff9bdeae73d8b997e

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/f" Depth: 6

  • Value: "data=" Depth: 5

  • Value: !"Referer"

Within:

PCRE: "/^Host\x3a\x20\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}\r\n/Hm"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_client_body

  • http_header

source