""ET TROJAN JS/Z1_Loader Activity (POST)""

SID: 2049086

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_11_06, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Major, updated_at 2024_02_07, reviewed_at 2023_11_06

Reference:

  • md5

  • 1740dd861c10c370aded27ff14fa8425

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: "id=1" Depth: 4

  • Value: !"Referer"

Within:

PCRE: "/^Accept[^\r\n]+\r\nAccept-Language[^\r\n]+\r\nAccept-Encoding[^\r\n]+\r\n/Hm"

Special Options:

  • http_method

  • fast_pattern

  • http_client_body

  • http_header

source