测试与安全技能

Investigate suspected data theft from AWS S3 by comparing access logs, GuardDuty findings, and Macie classifications. Identify unusual bulk downloads and transfers across accounts, assess sensitive data exposure, and build automated detection rules.

中文简介正在准备中。当前显示英语简介。

• Investigating unusual bulk downloads from S3
• Checking transfers to external AWS accounts
• Assessing exposure of sensitive data

Set up Zeek to observe network traffic and produce structured logs for security analysis. Create custom detection scripts, investigate suspicious DNS activity and repeated external connections, and forward logs to a central security monitoring system.

中文简介正在准备中。当前显示英语简介。

• Set up passive monitoring at key network points
• Create detection scripts for suspicious DNS and repeated connections
• Forward Zeek logs to a central security monitoring system

Analyze ModSecurity, AWS WAF, and Cloudflare logs for SQL injection, attempts to manipulate database queries through web requests. Groups related requests, tracks source IPs, classifies attack methods, and produces incident reports.

中文简介正在准备中。当前显示英语简介。

• Investigating suspected SQL injection attempts
• Tracking repeated attacks from the same source
• Connecting requests across an attack campaign

Detect attacks that misuse legitimate Windows tools by examining command arguments, parent and child processes, and network connections. Create Sysmon logging configurations and Sigma detection rules, analyze endpoint logs, and review application controls while accounting for legitimate usage.

中文简介正在准备中。当前显示英语简介。

• Creating detection rules for misuse of Windows tools
• Investigating unusual process chains in alerts
• Hunting for fileless attacks in endpoint logs

Find undocumented API endpoints, the addresses applications send requests to, by comparing traffic with OpenAPI specifications and examining cloud settings and source code. Build an inventory with activity and risk details to review forgotten or outdated APIs.

中文简介正在准备中。当前显示英语简介。

• Finding API endpoints missing from documentation
• Auditing forgotten test APIs and outdated versions
• Prioritizing undocumented APIs for security review

Design monitoring for industrial attacks that alter controller programs while hiding changes with false sensor readings. Compare PLC program blocks against known-good copies and check physical measurements against process models to identify suspicious inconsistencies.

中文简介正在准备中。当前显示英语简介。

• Monitoring industrial controller programs for unauthorized changes
• Investigating discrepancies between sensor readings and equipment behavior
• Planning detection across IT and industrial control systems

Audit GitHub Actions workflows and CI/CD configurations for supply chain risks. Use Python and YAML parsing to identify unpinned actions, unsafe event expressions, excessive permissions, dependency confusion, and potential exposure of secrets in build pipelines.

中文简介正在准备中。当前显示英语简介。

• Reviewing GitHub Actions workflow security
• Checking action version pinning
• Finding unsafe event expressions in scripts

Investigate suspicious PowerShell activity using endpoint monitoring data and security logs. Examine encoded commands, downloads, and attempts to evade inspection, then document evidence, affected systems, risk, and recommended response actions.

中文简介正在准备中。当前显示英语简介。

• Hunting for suspicious PowerShell execution
• Investigating endpoint and security log alerts
• Assessing the scope of a PowerShell-related incident

Inspect npm packages and dependency files for malicious installation scripts, credential theft, and self-spreading behavior. Use GuardDog scanning, source inspection, known-malicious version checks, and isolated execution to produce an evidence-based assessment.

中文简介正在准备中。当前显示英语简介。

• Vetting a new npm dependency before adoption
• Reviewing dependency files during code review
• Checking lockfiles against known-malicious versions

Analyze Windows authentication logs for repeated password guesses against Remote Desktop services. Group failures by source IP and account, check for later successful logins, and produce a JSON report highlighting attack patterns and possible compromise.

中文简介正在准备中。当前显示英语简介。

• Investigate repeated login failures on exposed RDP services
• Identify accounts targeted by password guessing
• Check for successful logins after repeated failures

Configure email security gateways to detect targeted phishing messages. Set up sender impersonation protection, link checks, isolated attachment analysis, and custom rules, then validate quarantine actions and alerts for suspected attacks.

中文简介正在准备中。当前显示英语简介。

• Strengthening protection against targeted phishing
• Detecting executive or vendor impersonation
• Reviewing link and attachment protection

Investigate stolen Kerberos tickets, authentication credentials that can be reused without a password, by correlating Windows security events. Build Splunk or Elastic detection rules for cross-host reuse, weaker encryption, and unusual request volumes, and report risk-scored findings.

中文简介正在准备中。当前显示英语简介。

• Investigating suspected reuse of stolen Kerberos tickets
• Building Splunk or Elastic detection rules
• Finding unusual ticket request volumes

Investigate Pass-the-Hash attacks, where stolen password hashes are reused for authentication. Examine unusual NTLM logins alongside credential theft indicators, validate suspicious findings across security logs, and document evidence, affected hosts, confidence, and recommended responses.

中文简介正在准备中。当前显示英语简介。

• Hunting for movement using stolen password hashes
• Triaging suspicious NTLM login alerts
• Assessing the scope of a compromise

Audit Secure Boot settings, revoked boot components, and EFI startup files on Linux and Windows. The skill helps identify missing protections and signs of bootkits, malicious software that runs before the operating system.

中文简介正在准备中。当前显示英语简介。

• Auditing Secure Boot after a bootkit advisory
• Checking revocation updates across managed devices
• Investigating suspected bootkit infections

Develop network monitoring for signs that may precede ransomware encryption. Uses detection rules, linked log events, and threat intelligence to identify suspicious activity and define how alerts should be investigated, prioritized, and escalated.

中文简介正在准备中。当前显示英语简介。

• Creating detection rules for activity before ransomware encryption
• Linking suspicious logins, scans, and file share access
• Investigating unusual internal network communications

Investigate process hollowing, where malicious code replaces a legitimate process in memory. Compare memory with disk files, examine process relationships, and correlate network activity to document suspicious processes and guide containment.

中文简介正在准备中。当前显示英语简介。

• Investigating process injection alerts from EDR
• Examining suspicious behavior in legitimate Windows processes
• Finding threats that run in memory

Find WMI event subscriptions that let attackers retain access to Windows systems. Correlate Sysmon events with stored subscriptions and Autoruns results, inspect execution triggers and commands, and document risks and recommended remediation.

中文简介正在准备中。当前显示英语简介。

• Triaging Sysmon alerts for events 19, 20, and 21
• Finding WMI persistence during incident response
• Distinguishing suspicious subscriptions from legitimate settings

Investigate NTLM relay, an attack that forwards authentication messages to another service, by comparing Windows login events with host inventories. Use the supplied queries and audits to identify suspicious sources, weaker authentication, and gaps in signing enforcement.

中文简介正在准备中。当前显示英语简介。

• Investigating mismatched login source addresses and hostnames
• Building SIEM rules to detect NTLM relay
• Auditing SMB and LDAP signing requirements

Investigate suspected rootkits, malware that hides its presence, by comparing process lists, inspecting memory, and checking system integrity. Use Volatility and Windows or Linux scanners to identify hidden processes, suspicious drivers, altered system calls, and concealed connections.

中文简介正在准备中。当前显示英语简介。

• Investigating compromise when standard tools show no anomalies
• Comparing process lists to find hidden activity
• Examining suspicious drivers and concealed connections

Build detection rules for suspicious Windows scheduled tasks by correlating Sysmon and Windows Security logs. Examine parent processes, file paths, encoded commands, and remote task creation to uncover persistent access and movement between systems.

中文简介正在准备中。当前显示英语简介。

• Investigating suspicious scheduled task creation
• Hunting for tasks that run encoded commands
• Detecting remote task creation across systems

Analyze proxy, DNS, and firewall traffic logs to uncover unapproved SaaS and cloud services. Group usage by domain, compare it with approved applications, and produce a report with traffic volumes, user counts, risk scores, and remediation recommendations.

中文简介正在准备中。当前显示英语简介。

• Finding unapproved SaaS and cloud services
• Measuring traffic volumes and users by service
• Prioritizing services by potential data leakage risk

Investigate stolen OAuth tokens and their reuse in Microsoft Entra ID through sign-in log analysis. Follow response procedures for revoking sessions and reviewing app permissions, and configure device-bound token protection and session monitoring for Azure and M365 environments.

中文简介正在准备中。当前显示英语简介。

• Investigating anomalous token usage alerts
• Responding to suspected session hijacking
• Finding token reuse in sign-in logs

Investigate service account misuse by examining unexpected interactive logons, privilege changes, and movement between systems. Correlate endpoint and security logs, distinguish suspicious activity from legitimate operations, and document evidence, risk, and recommended responses.

中文简介正在准备中。当前显示英语简介。

• Investigating unexpected interactive logons by service accounts
• Checking service account access outside its assigned scope
• Tracing suspicious movement between systems after hours

Use Stratus Red Team to simulate attack techniques across AWS, Azure, GCP, and Kubernetes. Prepare test resources, run and repeat simulations, check logs and alerts, and remove resources to assess whether security detections work.

中文简介正在准备中。当前显示英语简介。

• Checking whether cloud detection rules trigger
• Testing log ingestion and alert routing
• Running joint attack and defense exercises