Add folder anatomy (scripts/agent.py + references/api-reference.md) for 648 cybersecurity skills

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
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MIT License
Copyright (c) 2025 Anthropic Agent Skills Contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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# Cloud Cryptomining Detection API Reference
## GuardDuty - Cryptocurrency Finding Types
| Finding Type | Signal |
|-------------|--------|
| `CryptoCurrency:EC2/BitcoinTool.B!DNS` | EC2 querying crypto domains |
| `CryptoCurrency:EC2/BitcoinTool.B` | EC2 communicating with mining pools |
| `CryptoCurrency:Runtime/BitcoinTool.B!DNS` | Container DNS to mining domain |
| `CryptoCurrency:Runtime/BitcoinTool.B` | Container network to mining pool |
| `Impact:EC2/BitcoinDomainRequest.Reputation` | Known mining domain access |
## GuardDuty CLI
```bash
# Get detector ID
aws guardduty list-detectors --query 'DetectorIds[0]' --output text
# List crypto findings
aws guardduty list-findings --detector-id $DET \
--finding-criteria '{"Criterion":{"type":{"Eq":["CryptoCurrency:EC2/BitcoinTool.B!DNS"]}}}'
# Get finding details
aws guardduty get-findings --detector-id $DET --finding-ids id1 id2
```
## AWS Cost Anomaly Detection
```bash
# Create cost anomaly monitor
aws ce create-anomaly-monitor --anomaly-monitor '{
"MonitorName": "EC2CostSpike",
"MonitorType": "DIMENSIONAL",
"MonitorDimension": "SERVICE"
}'
# Create alert subscription
aws ce create-anomaly-subscription --anomaly-subscription '{
"SubscriptionName": "CryptoAlert",
"MonitorArnList": ["arn:aws:ce::123456789012:anomalymonitor/monitor-id"],
"Subscribers": [{"Address": "soc@company.com", "Type": "EMAIL"}],
"Threshold": 100.0,
"Frequency": "IMMEDIATE"
}'
```
## Known Mining Pool Ports
```
3333 - Stratum protocol (common)
4444 - Mining proxy
5555 - Monero (XMR)
7777 - Alt-coin mining
8888 - Multi-pool
9999 - Mining proxy
14444 - XMRig default
45700 - MoneroOcean
```
## VPC Flow Logs Query (CloudWatch Insights)
```
fields @timestamp, srcaddr, dstaddr, dstport, action
| filter dstport in [3333, 4444, 5555, 7777, 14444, 45700]
| sort @timestamp desc
| limit 50
```
## EC2 Instance Remediation
```bash
# Terminate mining instance
aws ec2 terminate-instances --instance-ids i-0123456789abcdef0
# Revoke security group ingress on mining ports
aws ec2 revoke-security-group-ingress --group-id sg-xxx \
--protocol tcp --port 3333 --cidr 0.0.0.0/0
```
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#!/usr/bin/env python3
"""Cloud cryptomining detection agent using AWS GuardDuty and CloudWatch."""
import json
import subprocess
import sys
from datetime import datetime
CRYPTO_FINDING_TYPES = [
"CryptoCurrency:EC2/BitcoinTool.B!DNS",
"CryptoCurrency:EC2/BitcoinTool.B",
"CryptoCurrency:Runtime/BitcoinTool.B!DNS",
"CryptoCurrency:Runtime/BitcoinTool.B",
"CryptoCurrency:Lambda/BitcoinTool.B",
"Impact:EC2/BitcoinDomainRequest.Reputation",
"Impact:Runtime/BitcoinDomainRequest.Reputation",
]
MINING_POOL_PORTS = [3333, 4444, 5555, 7777, 8888, 9999, 14444, 45700]
def aws_cli(args):
"""Execute an AWS CLI command and return parsed JSON."""
cmd = ["aws"] + args + ["--output", "json"]
try:
result = subprocess.run(cmd, capture_output=True, text=True, timeout=30)
if result.returncode == 0:
return json.loads(result.stdout) if result.stdout.strip() else {}
return {"error": result.stderr.strip()}
except Exception as e:
return {"error": str(e)}
def get_guardduty_detector():
"""Get the GuardDuty detector ID."""
result = aws_cli(["guardduty", "list-detectors"])
detectors = result.get("DetectorIds", [])
return detectors[0] if detectors else None
def list_crypto_findings(detector_id=None):
"""List GuardDuty findings related to cryptocurrency mining."""
if not detector_id:
detector_id = get_guardduty_detector()
if not detector_id:
return {"error": "No GuardDuty detector found"}
criteria = {"Criterion": {"type": {"Eq": CRYPTO_FINDING_TYPES}, "service.archived": {"Eq": ["false"]}}}
result = aws_cli([
"guardduty", "list-findings",
"--detector-id", detector_id,
"--finding-criteria", json.dumps(criteria),
])
finding_ids = result.get("FindingIds", [])
if not finding_ids:
return {"detector_id": detector_id, "findings": [], "count": 0}
details = aws_cli([
"guardduty", "get-findings",
"--detector-id", detector_id,
"--finding-ids"] + finding_ids[:25]
)
findings = []
for f in details.get("Findings", []):
resource = f.get("Resource", {})
instance = resource.get("InstanceDetails", {})
findings.append({
"id": f.get("Id"),
"type": f.get("Type"),
"severity": f.get("Severity"),
"title": f.get("Title"),
"instance_id": instance.get("InstanceId"),
"instance_type": instance.get("InstanceType"),
"region": f.get("Region"),
"updated_at": f.get("UpdatedAt"),
})
return {"detector_id": detector_id, "count": len(findings), "findings": findings}
def check_ec2_cpu_anomalies(threshold_percent=90):
"""Find EC2 instances with sustained high CPU (potential mining)."""
result = aws_cli([
"cloudwatch", "get-metric-data",
"--metric-data-queries", json.dumps([{
"Id": "cpu",
"MetricStat": {
"Metric": {
"Namespace": "AWS/EC2",
"MetricName": "CPUUtilization",
},
"Period": 3600,
"Stat": "Average",
},
}]),
"--start-time", (datetime.utcnow().replace(hour=0, minute=0, second=0)).isoformat() + "Z",
"--end-time", datetime.utcnow().isoformat() + "Z",
])
return result
def check_cost_anomalies():
"""Check for cost anomaly detections that may indicate mining."""
result = aws_cli([
"ce", "get-anomalies",
"--date-interval", json.dumps({
"StartDate": datetime.utcnow().strftime("%Y-%m-01"),
"EndDate": datetime.utcnow().strftime("%Y-%m-%d"),
}),
])
return result
def check_vpc_flow_mining_ports(log_group="/aws/vpc/flowlogs"):
"""Query CloudWatch Logs for connections to known mining pool ports."""
ports_filter = " || ".join([f"dstport = {p}" for p in MINING_POOL_PORTS])
query = f'fields @timestamp, srcaddr, dstaddr, dstport, action | filter ({ports_filter}) | sort @timestamp desc | limit 50'
result = aws_cli([
"logs", "start-query",
"--log-group-name", log_group,
"--start-time", str(int((datetime.utcnow().replace(hour=0)).timestamp())),
"--end-time", str(int(datetime.utcnow().timestamp())),
"--query-string", query,
])
return result
def terminate_mining_instance(instance_id):
"""Terminate a confirmed cryptomining EC2 instance."""
result = aws_cli(["ec2", "terminate-instances", "--instance-ids", instance_id])
return {
"action": "terminate_instance",
"instance_id": instance_id,
"result": result,
"timestamp": datetime.utcnow().isoformat() + "Z",
}
def generate_report():
"""Generate a comprehensive cryptomining detection report."""
return {
"timestamp": datetime.utcnow().isoformat() + "Z",
"guardduty_findings": list_crypto_findings(),
"cost_anomalies": check_cost_anomalies(),
}
if __name__ == "__main__":
action = sys.argv[1] if len(sys.argv) > 1 else "report"
if action == "report":
print(json.dumps(generate_report(), indent=2, default=str))
elif action == "findings":
print(json.dumps(list_crypto_findings(), indent=2, default=str))
elif action == "costs":
print(json.dumps(check_cost_anomalies(), indent=2, default=str))
elif action == "flow-logs":
lg = sys.argv[2] if len(sys.argv) > 2 else "/aws/vpc/flowlogs"
print(json.dumps(check_vpc_flow_mining_ports(lg), indent=2, default=str))
elif action == "terminate" and len(sys.argv) > 2:
print(json.dumps(terminate_mining_instance(sys.argv[2]), indent=2, default=str))
else:
print("Usage: agent.py [report|findings|costs|flow-logs [log-group]|terminate <instance-id>]")