""ET TROJAN Win32/BlackMagic Ransomware Payload Request (GET)""

SID: 2042520

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 2022_12_08, deployment Perimeter, signature_severity Major, updated_at 2022_12_08

Reference:

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: "/dll/microsoftupdatedefender" Depth: 28

Within:

PCRE: "/Host\x3a\x20(?:[0-9]{1,3}.){3}[0-9]{1,3}/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source