""ET TROJAN PoisonIvy HTTP CnC Beacon""

SID: 2021523

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2015_07_23, deployment Perimeter, malware_family PoisonIvy, signature_severity Major, tag PoisonIvy, tag c2, updated_at 2015_07_23, 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: "HTTP|3a 2f 2f|" Depth: 7

  • Value: "id=" Depth: 3

  • Value: !"Host|3a|"

  • Value: !"User-Agent|3a|"

  • Value: !"Accept"

  • Value: !"Referer|3a|"

  • Value: "HTTP/1.1|0d 0a|Cookie|3a 20|id="

Within:

PCRE: "/^id=[0-9A-F]{12}[^\r\n]+$/C"

Special Options:

  • http_raw_uri

  • http_cookie

  • http_header

  • http_header

  • http_header

  • http_header

source