""ET TROJAN BlankGrabber Stealer Exfiltration via Discord""

SID: 2055394

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_08_22, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag c2, updated_at 2024_08_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

  • md5

  • 40b8c4e793c6341ad23f27d18b5646eb

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/" Depth: 14

  • Value: "Host|3a 20|discordapp.com|0d 0a|"

  • Value: "name|3d 22|file|22 3b 20|filename|3d 22|Blank|2d|admin|2e|rar|22|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

source