""ET CURRENT_EVENTS RIG EK URI Struct Feb 26 2017""

SID: 2024020

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_02_27, deployment Perimeter, malware_family Exploit_Kit_RIG, performance_impact Low, signature_severity Major, tag Exploit_kit_RIG, updated_at 2017_02_27

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "oq="

• Value: !"Cookie|3a|"

Within:

PCRE: "/^\/\?o?q=(?=[A-Za-z_-][0-9])(?=[a-z0-9_-][A-Z][a-z0-9_-][A-Z])(?=[A-Z0-9_-][a-z][A-Z0-9_-][a-z])[A-Za-z0-9_-]+&o?q=(?=[A-Za-z_-][0-9])(?=[a-z0-9_-][A-Z][a-z0-9_-][A-Z])(?=[A-Z0-9_-][a-z][A-Z0-9_-][a-z])[A-Za-z0-9_-]+$/U"

Special Options:

• http_uri

source