""ET TROJAN PS1Loader Encoded Profiling POST""

SID: 2044345

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_02_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2023_02_24

Reference:

  • md5

  • 946f19e1af51a042aea63a9e8ce8ce63

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "WindowsPowerShell"

  • Value: "ps=" Depth: 3

  • Value: "&magic="

  • Value: "&domain="

  • Value: "&systeminfo="

  • Value: "POST /c/" Depth: 8

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+WindowsPowerShell/Hi"

Special Options:

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

source