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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
67 lines
1.5 KiB
Markdown
67 lines
1.5 KiB
Markdown
# API Reference: Detecting DLL Sideloading Attacks
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## Sysmon Event ID 7 (Image Loaded)
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```xml
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<EventID>7</EventID>
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<Data Name="Image">C:\Users\victim\app\signed.exe</Data>
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<Data Name="ImageLoaded">C:\Users\victim\app\malicious.dll</Data>
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<Data Name="Signed">false</Data>
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<Data Name="SignatureStatus">Unavailable</Data>
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<Data Name="Hashes">SHA256=abc123...</Data>
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```
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## python-evtx Usage
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```python
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import Evtx.Evtx as evtx
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with evtx.Evtx("Sysmon.evtx") as log:
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for record in log.records():
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xml = record.xml()
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# Filter EventID 7, check Signed=false, non-standard path
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```
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## Known Sideloading Targets
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| Legitimate Executable | Vulnerable DLL |
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|----------------------|----------------|
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| vmwaretray.exe | vmtools.dll |
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| colorcpl.exe | colorui.dll |
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| consent.exe | comctl32.dll |
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| bginfo.exe | version.dll |
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| teams.exe | version.dll |
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| winword.exe | wwlib.dll |
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## Splunk SPL Detection
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```spl
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index=sysmon EventCode=7 Signed=false
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| where NOT match(ImageLoaded, "(?i)(System32|SysWOW64|Program Files)")
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| stats count by Image, ImageLoaded, SignatureStatus, Computer
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| where count > 0
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```
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## Sigma Rule Fields
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```yaml
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logsource:
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product: windows
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category: image_load
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detection:
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selection:
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EventID: 7
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Signed: "false"
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filter:
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ImageLoaded|startswith:
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- "C:\\Windows\\System32\\"
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- "C:\\Program Files\\"
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```
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## CLI Usage
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```bash
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python agent.py --sysmon-log Sysmon.evtx
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python agent.py --scan-dir C:\Users\victim\Downloads\app\
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python agent.py --generate-sigma
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```
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