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Detection rules › Sigma

Suspicious RASdial Activity

Status
test
Severity
medium
Log source
product windows, category process_creation
Author
juju4
Source
github.com/SigmaHQ/sigma

Detects suspicious process related to rasdial.exe

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1059 Command and Scripting Interpreter

Event coverage

ProviderEventTitle
SysmonEvent ID 1Process creation
Security-AuditingEvent ID 4688A new process has been created.

Rule body yaml

title: Suspicious RASdial Activity
id: 6bba49bf-7f8c-47d6-a1bb-6b4dece4640e
status: test
description: Detects suspicious process related to rasdial.exe
references:
    - https://twitter.com/subTee/status/891298217907830785
author: juju4
date: 2019-01-16
modified: 2021-11-27
tags:
    - attack.execution
    - attack.t1059
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: 'rasdial.exe'
    condition: selection
falsepositives:
    - False positives depend on scripts and administrative tools used in the monitored environment
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    Image|endswith: 'rasdial.exe'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Imageends_with
  • rasdial.exe