""ET INFO HTTP Request to transfer .sh via Powershell""

SID: 2045269

Revision: 1

Class Type: bad-unknown

Metadata: attack_target Client_Endpoint, created_at 2023_05_01, deployment Perimeter, deployment SSLDecrypt, signature_severity Informational, updated_at 2023_05_01

Reference:

  • md5

  • 2c22fe7e29b78bd30abda6f9022c421d

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "WindowsPowerShell/"

  • Value: "Host|3a 20|transfer.sh"

Within:

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

Special Options:

  • http_method

  • http_header

  • fast_pattern

  • http_header

source