""ET TROJAN Lunar Builder Exfil via Discord M1""

SID: 2032804

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 2021_04_22, deployment Perimeter, deployment SSLDecrypt, malware_family Lunar_Builder, performance_impact Low, signature_severity Major, updated_at 2021_04_22

Reference:

  • md5

  • 11ca4e678716a5aa177bd8506f0e109f

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/api/webhooks"

  • Value: "discord.com"

  • Value: ".lunar|22 3b 20|filename=|22|"

  • Value: "|0d 0a 0d 0a|"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+discord.com/Hmi"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

source