测试与安全技能

Create a ransomware response playbook aligned with CISA guidance and NIST CSF, a cybersecurity framework. Organize preparation, detection, containment, recovery, and lessons learned into actionable checklists for readiness reviews and simulated incident exercises.

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• Creating or updating a ransomware response playbook
• Assessing readiness against CISA guidance
• Validating response steps in a tabletop exercise

Set up Microsoft Sentinel to collect security logs from AWS, Azure, and GCP. Build detection queries, investigate historical activity, and create automated response workflows for a centralized security operations team.

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• Centralizing security monitoring across multiple clouds
• Migrating from an existing SIEM platform
• Automating responses to suspicious cloud activity

Plan and conduct authorized security tests of AWS, Azure, and GCP environments. Check access permissions, credential exposure, cross-account access, and monitoring, then organize findings into a report with severity, business impact, and remediation guidance.

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• Assessing cloud security before production deployment
• Checking access controls after a cloud migration
• Testing monitoring and incident response readiness

Build a shared incident timeline in Timesketch from endpoint, server, and cloud logs. Search events, add tags and investigator notes, reconstruct the attack sequence, and organize findings into a story for incident reporting.

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• Reconstructing the sequence of an incident
• Reviewing evidence with multiple analysts
• Combining Plaso output and other logs

Set up MISP to collect threat feeds and centrally manage indicators such as suspicious IP addresses and domains. Configure automated synchronization, connect related findings, and export indicators to security monitoring platforms or blocklists.

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• Centralizing threat indicators from multiple feeds
• Deploying MISP with Docker
• Automating threat feed synchronization

Analyze Windows Amcache records to investigate applications, deleted executable traces, and drivers. Extract file details, compare SHA-1 hashes with malware databases, and combine records into a timeline to support incident investigations.

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• Investigating traces of deleted executables
• Checking software installed during an incident
• Comparing file hashes with malware databases

Collect and organize victim postings from ransomware data leak sites through tracking feeds. Analyze group activity over time, compare sector and country patterns, and produce threat reports with risk assessments and defensive recommendations.

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• Track monthly activity across ransomware groups
• Assess ransomware exposure by sector or country
• Identify newly observed ransomware groups

Reconstruct Windows folder browsing activity from Shellbag registry records using SBECmd and ShellBags Explorer. Investigate traces of deleted directories, disconnected USB drives, and network shares while accounting for limits in what the records and timestamps show.

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• Reconstructing a user's folder browsing history
• Investigating browsing traces on disconnected USB drives
• Checking access traces for deleted folders

Investigate ransomware payment addresses using public blockchain records. Trace transfers, group addresses likely controlled by the same entity, identify links to exchanges or mixing services, and organize findings into a report for incident responders and investigators.

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• Investigating a payment address found in a ransom note
• Tracing funds after a ransom payment
• Comparing related wallets across ransomware incidents

Audit AWS, Azure, and GCP configurations against CIS Benchmarks, security configuration guidelines. Use automated scan results to identify failed checks, prioritize fixes, report compliance by area, and establish ongoing monitoring for configuration changes.

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• Running an initial cloud security configuration audit
• Preparing CIS-related evidence for SOC 2 or ISO 27001 audits
• Prioritizing fixes for failed security checks

Build an automated workflow that collects suspicious files, checks known malware records, and submits unknown samples to isolated analysis environments. Generate verdicts and indicators of compromise, then send results to security monitoring systems.

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• Automating analysis of quarantined email attachments
• Batch-processing files quarantined by endpoint security
• Extracting threat indicators during incident investigations

Analyze Windows Registry files to uncover user activity, installed software, USB connections, and automatic startup entries. Organize these traces into investigation summaries and timelines to help examine suspicious activity and possible malware persistence.

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• Investigating suspicious automatic startup entries
• Reconstructing user activity around an incident
• Checking USB device connection traces

Simulate device-code and app-consent phishing in an explicitly authorized Microsoft Entra ID environment. Assess whether authentication and consent controls prevent token misuse, map reachable Microsoft 365 resources, and document findings with remediation recommendations.

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• Run authorized Microsoft 365 phishing exercises
• Validate Conditional Access and MFA controls
• Test restrictions on app consent

Search Windows PowerShell logs for traces of Empire, a framework used after a system is compromised. Identify characteristic launch commands, encoded code, module calls, and communication paths, then report suspicious events with timelines and severity scores.

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• Investigating suspected Empire activity
• Checking encoded commands and communication paths
• Building detection rules from Empire indicators

Search public TLS certificate records through crt.sh and pycrtsh to investigate lookalike domains, unexpected certificate issuers, and untracked IT assets. Compare domain spellings and review certificate details to support phishing detection and certificate monitoring.

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• Finding domains that imitate a brand
• Reviewing unexpected certificate issuers
• Investigating untracked domains and IT assets

Audit MCP servers, which provide external tools to AI agents, for hidden instructions, changes after approval, unsafe internal requests, and missing authentication. Use mcp-scan and manual checks to document risks and recommended fixes.

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• Reviewing an MCP server before adding it to an agent
• Auditing an internally developed MCP server
• Checking approved tools for unexpected changes

Inspect suspicious PDFs without opening them in a reader. Use PDFiD, pdf-parser, and peepdf to examine internal objects, extract scripts, embedded files, and URLs, and document how the suspected attack works.

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• Triage suspicious PDF email attachments
• Investigate embedded JavaScript and automatic actions
• Extract embedded files and external URLs

Analyze threat intelligence feeds to extract indicators of compromise, observable clues of possible attacks, and their campaign context. Assess source quality, standardize formats, remove duplicates, and enrich indicators for distribution to security monitoring systems.

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• Assessing the quality and relevance of threat intelligence feeds
• Standardizing indicators into STIX 2.1
• Removing duplicates and adding attack campaign context

Turn cyber threat intelligence reports into a searchable library of attacker behaviors linked to MITRE ATT&CK techniques. Export structured STIX 2.1 data, a threat information exchange format, and create detection rule templates from documented activity.

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• Cataloging attacker behaviors from threat intelligence reports
• Organizing attack patterns by tactic, technique, and threat actor
• Creating detection rule templates from documented behaviors

Audit Kubernetes RBAC, the rules that assign access through roles, to identify excessive permissions, risky role assignments, and paths to gaining higher privileges. Review service accounts and produce findings with recommended permission changes.

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• Reviewing access permissions in shared Kubernetes clusters
• Finding accounts that can read secrets or gain higher privileges
• Checking service account token mounts

Analyze threat intelligence stored in MISP, a platform for sharing security threat data. Summarize event counts, indicator types, attacker groups, and trends over time to create a threat landscape report for a chosen period.

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• Create a threat landscape report for the past 90 days
• Summarize attacker activity and frequently tagged attack techniques
• Track changes in submitted threat indicator types and volumes

Map attacker behaviors and indicators of compromise, or traces of an intrusion, to MITRE ATT&CK techniques. Build coverage heatmaps, compare threat groups, and identify monitoring gaps to guide detection improvements and threat intelligence reporting.

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• Mapping attacker behaviors and intrusion traces to ATT&CK techniques
• Visualizing detection coverage with ATT&CK Navigator
• Identifying attack techniques missing from monitoring

Audit Solidity contracts in Foundry projects before deployment using code analysis, randomized tests, manual review, and private key checks. Produces a JSON report with findings, remediation, test coverage, and a pass or fail deployment decision.

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• Auditing Solidity contracts before deployment
• Adding fuzz and invariant tests for contracts that move funds
• Reviewing private key storage and deployment scripts

Examine Outlook PST and OST archives to extract messages, headers, attachments, and recoverable deleted items. Use the extracted records to trace email routing, reconstruct communication patterns, and support incident investigations or legal evidence review.

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• Investigating suspicious emails in Outlook archives
• Tracing message routes through email headers
• Extracting attachments for further analysis