""ET TROJAN Win32/XFILES Stealer Data Exfiltration Attempt""

SID: 2041780

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_and_Server, created_at 2022_12_05, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_12_05

Reference:

  • md5

  • 90632a93c8886957f9eeee66489b269e

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: "/?Chatid|3d 40|"

  • Value: "multipart/form-data|3b 20|boundary|3d 22|"

  • Value: !"Referrer|3a 20|"

Within:

PCRE: "/^Content-Type\x3a\x20[^\r\n]+multipart\/form-data\x3b\x20boundary\x3d\x22/Hmi"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source