""ET TROJAN Hyperion Obfuscator Payload Inbound""

SID: 2039716

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_11_04, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2023_04_04, reviewed_at 2024_01_26

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "from|20|builtins|20|import|20 2a 3b|" Depth: 23

  • Value: "|5b 27 5c|x64|5c|x65|5c|x63|5c|x6f|5c|x6d|5c|x70|5c|x72|5c|x65|5c|x73|5c|x73|27 5d|"

  • Value: "|5b 27 5c|x65|5c|x76|5c|x61|5c|x6c|27 5d|"

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source