""ET TROJAN Matrix Max Stealer Exfiltration Observed""

SID: 2036245

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_04_18, deployment SSLDecrypt, malware_family Matrix_Max, performance_impact Low, signature_severity Major, updated_at 2022_04_18

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: "/gate.php"

  • Value: "zipx=UEsDBBQ" Depth: 12

Within:

PCRE: "/^Content-Type\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+\r\nExpect\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

source