""ET USER_AGENTS Suspicious User-Agent (Windows Explorer)""

SID: 2037137

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 2022_06_28, deployment Perimeter, signature_severity Informational, updated_at 2022_06_28

Reference:

  • md5

  • a750e7ca3c96e229159290610f050f44

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Windows Explorer|0d 0a|"

Within:

PCRE:

Special Options:

  • http_header

  • nocase

  • fast_pattern

source