""ET USER_AGENTS Suspicious User-Agent (dBrowser CallGetResponse)""

SID: 2034948

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_01_19, deployment Perimeter, signature_severity Minor, updated_at 2022_01_19, reviewed_at 2024_05_07

Reference:

  • md5

  • e09ad59bff10bd4b730ee643809ec9a7

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "User-Agent|3a 20|dBrowser" Depth: 20

  • Value: "CallGetResponse:"

Within: 16

PCRE: "/^User\x2dAgent\x3a\x20dBrowser\x20\d\x20CallGetResponse\x3a\d/H"

Special Options:

  • http_header

  • fast_pattern

  • http_header

source