""ET CURRENT_EVENTS Likely Malicious Windows SCT Download MSXMLHTTP AX""

SID: 2024553

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_15, deployment Perimeter, malware_family PowerShell, signature_severity Major, tag PowerShell_Downloader, updated_at 2017_08_15

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "<registration"

  • Value: "progid"

  • Value: "<script"

  • Value: "<![CDATA["

  • Value: "ActiveXObject"

Within:

PCRE:

Special Options:

  • file_data

  • nocase

  • nocase

  • nocase

  • nocase

  • nocase

source