""ET TROJAN MSIL/Small.FU Variant CnC Activity M2""

SID: 2033925

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 2021_09_10, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_09_10

Reference:

  • md5

  • 72513b6c906dcac441a146c8ebf256e7

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: "/gateonl.php?hwid=" Depth: 19

  • Value: "&cpuname="

  • Value: "&gpuname="

  • Value: "&cpu="

  • Value: !"Referer|3a 20|"

  • Value: !"Accept|3a 20|"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

  • http_header

source