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Detection rules › Sigma

HackTool - Hydra Password Bruteforce Execution

Status
test
Severity
high
Log source
category process_creation, product windows
Author
Vasiliy Burov
Source
github.com/SigmaHQ/sigma

Detects command line parameters used by Hydra password guessing hack tool

Known false positives

  • Software that uses the caret encased keywords PASS and USER in its command line

MITRE ATT&CK coverage

TacticTechniques
Credential Access

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 1: Process creation
Security-AuditingEvent ID 4688: A new process has been created.

Rule body

title: HackTool - Hydra Password Bruteforce Execution
id: aaafa146-074c-11eb-adc1-0242ac120002
status: test
description: Detects command line parameters used by Hydra password guessing hack tool
references:
    - https://github.com/vanhauser-thc/thc-hydra
author: Vasiliy Burov
date: 2020-10-05
modified: 2023-02-04
tags:
    - attack.credential-access
    - attack.t1110
    - attack.t1110.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - '-u '
            - '-p '
        CommandLine|contains:
            - '^USER^'
            - '^PASS^'
    condition: selection
falsepositives:
    - Software that uses the caret encased keywords PASS and USER in its command line
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    CommandLine|contains|all:
        - '-u '
        - '-p '
    CommandLine|contains:
        - '^USER^'
        - '^PASS^'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
CommandLinematch
  • -p corpus 2 (sigma 2)
  • -u corpus 5 (sigma 4, splunk 1)
  • ^PASS^
  • ^USER^
field:"CommandLine" kind:match