""ET CURRENT_EVENTS Possible Broken/Filtered RIG EK Payload Download""

SID: 2023768

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_01_27, deployment Perimeter, malware_family Exploit_Kit_RIG, performance_impact Low, signature_severity Major, tag Exploit_kit_RIG, updated_at 2017_01_27

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "Content-Type|3a 20|application/x-msdownload|0d 0a|"

  • Value: "Content-Length|3a 20|3|0d 0a|"

  • Value: "|3d 28 28|"

Within: 3

PCRE:

Special Options:

  • http_header

  • http_header

  • fast_pattern

  • file_data

source