""ET TROJAN DustySky CnC Beacon""

SID: 2021919

Revision: 5

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_10_06, deployment Perimeter, performance_impact Moderate, signature_severity Major, tag c2, updated_at 2024_04_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • 07fd870e4ea8dd6b9503a956b5bb47f3

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".php?"

  • Value: "Pn="

  • Value: "&ID="

  • Value: "&o="

  • Value: "&av="

  • Value: !"Accept"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • http_uri

  • nocase

  • http_uri

  • fast_pattern

  • nocase

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

source