""ET TROJAN W32/Ke3chang.MovieStar.APT Campaign CnC Beacon""

SID: 2017855

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2013_12_13, deployment Perimeter, signature_severity Major, tag c2, updated_at 2013_12_13, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/p3oahin/" Depth: 9

  • Value: ".aspx?r="

  • Value: "&a="

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

source