""ET MALWARE W32/Stan Malvertising.Dropper CnC Beacon""

SID: 2019145

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2014_09_10, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_08_14, 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: "GET"

  • Value: "Proxy-Authorization|3A| Basic"

  • Value: !"Accept-"

  • Value: !"Referer|3a|"

  • Value: "Host|3A| stan|2E|"

Within:

PCRE: "/^\/[a-f0-9]{50,}$/U"

Special Options:

  • http_method

  • http_header

  • http_header

  • http_header

  • http_header

source