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mukul975
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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
64 lines
1.9 KiB
Markdown
64 lines
1.9 KiB
Markdown
# API Reference: Hunting for Suspicious Scheduled Tasks
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## Windows Event IDs
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| Event ID | Source | Description |
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|----------|--------|-------------|
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| 4698 | Security | Scheduled task created |
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| 4699 | Security | Scheduled task deleted |
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| 4702 | Security | Scheduled task updated |
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| 106 | TaskScheduler | Task registered |
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| 200/201 | TaskScheduler | Task executed / completed |
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## python-evtx
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```python
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import Evtx.Evtx as evtx
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import xml.etree.ElementTree as ET
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with evtx.Evtx("Security.evtx") as log:
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for record in log.records():
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root = ET.fromstring(record.xml())
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ns = {"ns": "http://schemas.microsoft.com/win/2004/08/events/event"}
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eid = root.find(".//ns:EventID", ns).text
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if eid == "4698":
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data = {d.get("Name"): d.text
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for d in root.findall(".//ns:Data", ns)}
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```
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## Splunk SPL
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```spl
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index=wineventlog EventCode=4698
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| spath output=TaskName path=EventData.TaskName
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| spath output=TaskContent path=EventData.TaskContent
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| where NOT match(TaskName, "\\\\Microsoft\\\\Windows\\\\")
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| where match(TaskContent, "(?i)(powershell|cmd|wscript|http)")
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| table _time Computer SubjectUserName TaskName TaskContent
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```
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## KQL (Microsoft Sentinel)
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```kql
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SecurityEvent
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| where EventID == 4698
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| extend TaskContent = tostring(EventData.TaskContent)
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| where TaskContent has_any ("powershell", "cmd.exe", "Temp", "AppData")
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| project TimeGenerated, Computer, Account, TaskContent
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```
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## PowerShell Enumeration
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```powershell
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Get-ScheduledTask | Where-Object {
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$_.Actions.Execute -match 'powershell|cmd|wscript' -or
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$_.Actions.Execute -match '\\Temp\\|\\AppData\\'
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} | Select-Object TaskName, TaskPath, @{N='Action';E={$_.Actions.Execute}}
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```
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### References
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- MITRE T1053.005: https://attack.mitre.org/techniques/T1053/005/
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- python-evtx: https://github.com/williballenthin/python-evtx
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- Sigma rules for schtasks: https://github.com/SigmaHQ/sigma
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