""ET TROJAN Win32/Lumma Stealer Data Exfiltration in URI (GET)""

SID: 2048391

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_10_04, deployment Perimeter, malware_family lumma, confidence High, signature_severity Critical, updated_at 2024_03_22, reviewed_at 2023_10_04

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: ".php?user="

  • Value: "&pc="

  • Value: "&os=Microsoft|20|Windows"

  • Value: "WinHttp.WinHttpRequest"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^Host\x3a\x20(?:[0-9]{1,3}.){3}[0-9]{1,3}$/Hm"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source