""ET WEB_CLIENT Office Requesting .HTA File Likely CVE-2017-0199 Request""

SID: 2024224

Revision: 4

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_04_19, cve CVE_2017_0199, deployment Perimeter, malware_family Exploit_Kit_RIG, performance_impact Low, signature_severity Major, tag Exploit_kit_RIG, updated_at 2017_06_06

Reference:

  • cve

  • 2017-0199

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".hta"

  • Value: "User-Agent|3a 20|Microsoft Office"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • nocase

  • http_uri

  • http_header

  • http_header

source