""ET TROJAN [PTsecurity] Trickbot Data Exfiltration""

SID: 2026738

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_12_19, deployment Perimeter, malware_family TrickBot, signature_severity Major, updated_at 2021_07_21

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: "Accept|3a 20|/" Depth: 12

  • Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b| MSIE 7.0|3b 20|Windows NT 6.1|3b|"

  • Value: "Host|3a 20|"

  • Value: "Connection|3a 20|close"

  • Value: "=|22|billinfo|22|"

  • Value: !"Referer|3a|"

Within:

PCRE: "/Content-Disposition\x3a\x20form-data\x3b\s*name=\x22(?:source|formdata|billinfo|cardinfo)\x22/Pm"

Special Options:

  • http_method

  • http_header

  • http_header

  • http_header

  • http_header

  • nocase

  • http_client_body

  • fast_pattern

  • http_header

source