""ET USER_AGENTS Suspicious User-Agent (SomeTimes)""

SID: 2026898

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2019_02_11, deployment Perimeter, performance_impact Low, signature_severity Minor, tag User_Agent, updated_at 2019_02_11

Reference:

  • md5

  • a86d4e17389a37bfc291f4a8da51a9b8

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|SomeTimes|0d|"

Within:

PCRE:

Special Options:

  • http_header

  • fast_pattern

source