""ET TROJAN GoBrut/StealthWorker Requesting Brute Force List (flowbit set)""

SID: 2033717

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_14, deployment Perimeter, malware_family PhpMyAdminBrute, performance_impact Low, signature_severity Major, updated_at 2019_08_13

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 1024:

Flow: established,to_server

Contents:

  • Value: "GET" Depth: 3

  • Value: "?worker=php_b"

  • Value: "User-Agent|3a 20|"

  • Value: "Ubuntu|3b 20|Linux|20|x86_64"

  • Value: "Accept-Encoding|3a 20|gzip|0d|"

  • Value: !"Referer|3a|"

Within:

PCRE:

Special Options:

  • fast_pattern

source