mirror of
https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git
synced 2026-07-27 06:31:00 +03:00
mukul975
cb8d79e068
- Add validated mitre_attack frontmatter to all 754 skills (286 distinct techniques), verified against MITRE ATT&CK v19.1 via the official mitreattack-python library: 0 revoked, deprecated, or invalid IDs - Curate precise per-skill technique IDs for forensics, malware-analysis, threat-intel, and red-team skills (e.g. DCSync -> T1003.006, Kerberoasting -> T1558.003, Pass-the-Ticket -> T1550.003) - Reconcile v19.1 tactic restructuring: Defense Evasion split into Stealth (TA0005) and Defense Impairment (TA0112); revoked T1562.* family and T1070.001/.002 remapped to active equivalents (T1685.*) - Normalize word-split tags across 35 skills (remove filename-derived stopword tags, add semantic cybersecurity tags) - Add api-reference.md for 3 skills that were missing it - Update README ATT&CK section with accurate v19.1 tactic distribution
87 lines
2.9 KiB
Markdown
87 lines
2.9 KiB
Markdown
---
|
|
name: detecting-malicious-scheduled-tasks-with-sysmon
|
|
description: 'Detect malicious scheduled task creation and modification using Sysmon
|
|
Event IDs 1 (Process Create for schtasks.exe), 11 (File Create for task XML), and
|
|
Windows Security Event 4698/4702. The analyst correlates task creation with suspicious
|
|
parent processes, public directory paths, and encoded command arguments to identify
|
|
persistence and lateral movement via scheduled tasks. Activates for requests involving
|
|
scheduled task detection, Sysmon persistence hunting, or T1053.005 Scheduled Task/Job
|
|
analysis.
|
|
|
|
'
|
|
domain: cybersecurity
|
|
subdomain: threat-hunting
|
|
tags:
|
|
- sysmon
|
|
- scheduled-tasks
|
|
- persistence
|
|
- detection
|
|
- threat-hunting
|
|
- windows-security
|
|
version: '1.0'
|
|
author: mahipal
|
|
license: Apache-2.0
|
|
d3fend_techniques:
|
|
- Execution Isolation
|
|
- Process Termination
|
|
- Hardware-based Process Isolation
|
|
- Platform Monitoring
|
|
- Process Suspension
|
|
nist_csf:
|
|
- DE.CM-01
|
|
- DE.AE-02
|
|
- DE.AE-07
|
|
- ID.RA-05
|
|
mitre_attack:
|
|
- T1046
|
|
- T1057
|
|
- T1082
|
|
- T1083
|
|
- T1021
|
|
---
|
|
# Detecting Malicious Scheduled Tasks with Sysmon
|
|
|
|
## Overview
|
|
|
|
Adversaries abuse Windows Task Scheduler (schtasks.exe, at.exe) for persistence (T1053.005)
|
|
and lateral movement. Sysmon Event ID 1 captures schtasks.exe process creation with full
|
|
command-line arguments, while Event ID 11 captures task XML files written to
|
|
C:\Windows\System32\Tasks\. Windows Security Event 4698 logs task registration details.
|
|
This skill covers building detection rules that correlate these events to identify
|
|
malicious scheduled tasks created from suspicious paths, with encoded payloads, or
|
|
targeting remote systems.
|
|
|
|
|
|
## When to Use
|
|
|
|
- When investigating security incidents that require detecting malicious scheduled tasks with sysmon
|
|
- When building detection rules or threat hunting queries for this domain
|
|
- When SOC analysts need structured procedures for this analysis type
|
|
- When validating security monitoring coverage for related attack techniques
|
|
|
|
## Prerequisites
|
|
|
|
- Sysmon installed with a detection-focused configuration (e.g., SwiftOnSecurity or Olaf Hartong)
|
|
- Windows Event Log forwarding to SIEM (Splunk, Elastic, or Sentinel)
|
|
- PowerShell ScriptBlock Logging enabled (Event 4104)
|
|
|
|
## Steps
|
|
|
|
1. Configure Sysmon to log Event IDs 1, 11, 12, 13 with task-related filters
|
|
2. Build detection rules for schtasks.exe /create with suspicious arguments
|
|
3. Correlate Event 4698 (task registered) with Sysmon Event 1 (process create)
|
|
4. Hunt for tasks executing from public directories or with encoded commands
|
|
5. Alert on remote task creation (schtasks /s) for lateral movement detection
|
|
|
|
## Expected Output
|
|
|
|
```
|
|
[CRITICAL] Suspicious Scheduled Task Detected
|
|
Task: \Microsoft\Windows\UpdateCheck
|
|
Command: powershell.exe -enc SQBuAHYAbwBrAGUALQBXAGUAYgBSAGU...
|
|
Created By: DOMAIN\compromised_user
|
|
Parent Process: cmd.exe (PID 4532)
|
|
Source: \\192.168.1.50 (remote creation)
|
|
MITRE: T1053.005 - Scheduled Task/Job
|
|
```
|