""ET TROJAN DeltaStealer Exfiltrating Data to gofile .io""

SID: 2045790

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 2023_05_19, deployment Perimeter, deployment SSLDecrypt, malware_family DeltaStealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_05_19

Reference:

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: "/uploadFile"

  • Value: ".gofile.io|0d 0a|"

  • Value: "Content-Disposition|3a 20|form-data|3b 20|name|3d 22|file|22 3b 20|"

  • Value: "filename|3d 22|diagnostics.zip|22 0d 0a|Content-Type|3a 20|application/zip|0d 0a 0d 0a|PK"

  • Value: !"User-Agent|3a 20|"

  • Value: !"Referer|3a 20|"

Within:

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

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_header

  • http_header

source