""ET TROJAN Cobalt Strike Activity (GET)""

SID: 2034267

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_10_27, deployment Perimeter, signature_severity Major, tag c2, updated_at 2021_10_27, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • aa1add403d79f0ae38f8b0aed2fcb0c2

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: "/loadercrypt_" Depth: 13

  • Value: ".php?vid="

  • Value: ".php?vid="

Within: 9

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

source