""ET TROJAN Win32/TrojanDownloader.Agent.FLZ CnC Activity""

SID: 2037032

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_06_17, deployment Perimeter, signature_severity Major, tag c2, updated_at 2022_06_17, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

  • md5

  • 8767e31c8052f43b6a74557d9579653e

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: ".aspx?ShopId="

Within:

PCRE: "/^HOST\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

source