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Detection rules › Sigma

PowerShell Console History Logs Deleted

Status
test
Severity
medium
Log source
product windows, category file_delete
Author
Nasreddine Bencherchali (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects the deletion of the PowerShell console History logs which may indicate an attempt to destroy forensic evidence

MITRE ATT&CK coverage

TacticTechniques
StealthT1070 Indicator Removal

Event coverage

ProviderEventTitle
SysmonEvent ID 23FileDelete (File Delete archived)
SysmonEvent ID 26FileDeleteDetected (File Delete logged)

Rule body yaml

title: PowerShell Console History Logs Deleted
id: ff301988-c231-4bd0-834c-ac9d73b86586
status: test
description: Detects the deletion of the PowerShell console History logs which may indicate an attempt to destroy forensic evidence
references:
    - Internal Research
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-02-15
tags:
    - attack.stealth
    - attack.t1070
logsource:
    category: file_delete
    product: windows
detection:
    selection:
        TargetFilename|endswith: '\PSReadLine\ConsoleHost_history.txt'
    condition: selection
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    TargetFilename|endswith: '\PSReadLine\ConsoleHost_history.txt'

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
TargetFilenameends_with
  • \PSReadLine\ConsoleHost_history.txt