“threat-hunting”的搜索结果

Investigate possible insider threats by correlating endpoint and security logs. Examine unusual data access, off-hours activity, bulk downloads, and privilege abuse, then document supporting evidence, risk, confidence, and recommended actions after checking the context for false positives.

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• Investigating bulk downloads before an employee leaves
• Reviewing data access outside an employee's duties
• Examining unauthorized queries by service accounts

IOC extraction, threat intelligence correlation, MITRE ATT&CK mapping, hunt hypothesis generation, and detection rule creation

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Frames a structured, testable threat-hunting hypothesis: grounding it in adversary behavior and available telemetry, defining the data sources and detection logic, and setting success criteria and outcomes. Activates for requests to start a threat hunt, write a hunt hypothesis, or plan a hypothesis-driven hunt.

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Hunt for threats in AWS environments using Detective behavior graphs, entity investigation timelines, GuardDuty Bul:ing correlation, and automated entity profiling across IAM users, EC2 instances, and IP addresses.

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Investigate signs of intrusion through hypothesis-led log searches, then turn findings into detection rules. Supports Sigma, YARA, and SIEM queries, with attention to false positives, data field mapping, and validation against historical logs.

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• Hunting for intrusion signs in security logs
• Turning findings into Sigma or YARA rules
• Investigating false positives and tuning alerts

Detect attacks that misuse legitimate Windows utilities such as certutil and mshta. Analyze process logs, command arguments, and parent-child relationships with Sigma detection rules, then report suspicious events with severity scores and supporting event details.

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• Investigating suspicious use of built-in Windows utilities
• Creating Sigma rules for unusual command arguments
• Finding Office apps that launch unexpected system utilities

Investigate suspicious privilege increases, including Windows UAC approval bypasses and Linux sudo or setuid abuse. Use registry changes, process relationships, and permission changes to identify possible abuse and document affected hosts, methods, and risk levels.

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• Investigating Windows UAC bypass activity
• Tracing how administrative access was obtained
• Monitoring Linux sudo and setuid abuse

Investigate attempts to gain higher privileges on Windows and Linux using endpoint and security logs. Guide hypothesis testing, evidence analysis, false-positive checks, and reporting to help assess suspicious privilege changes and the scope of a compromise.

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• Hunting for signs of privilege escalation
• Investigating alerts about suspicious privilege changes
• Assessing compromise scope during incident response

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.

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

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.

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

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.

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• 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

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.

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

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.

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

Analyze Sysmon logs to investigate process injection, where malicious code hides inside legitimate processes. Correlate remote thread creation, cross-process access, and unusual DLL loading, then organize findings by injection type, risk level, and ATT&CK technique.

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• Investigating EDR alerts about suspicious cross-process access
• Hunting for malicious code hidden inside legitimate processes
• Checking Sysmon coverage for process injection detection

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.

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

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.

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

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.

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

Investigate Windows credential theft by correlating endpoint monitoring data, Sysmon events, and security logs. The skill provides detection queries and a reporting format to identify suspicious access and assess which credentials may be compromised.

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• Investigating alerts about suspicious LSASS access
• Hunting for credential theft across Windows systems
• Assessing the scope of potentially compromised credentials

Investigate signs of Mimikatz credential theft using command lines, access to Windows authentication memory, file indicators, and known modules in memory. Correlate endpoint and security logs to assess suspicious alerts, document evidence, and recommend response actions.

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• Investigating alerts about Windows authentication memory access
• Hunting for signs of credential theft
• Assessing compromise scope during incident response

Investigate attacks that make legitimate Windows applications load malicious DLL files. This skill examines loading events, digital signatures, file hashes, and unusual locations, then checks process behavior to document suspicious cases and guide remediation.

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• Investigating alerts about unsigned DLL files
• Hunting for persistent threats using legitimate applications
• Checking suspicious DLL loading paths

Investigate DCSync attacks, which abuse Active Directory replication to steal password hashes. Use audit events and network traffic to identify suspicious replication requests, examine their sources, and check for subsequent credential misuse.

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• Hunting for credential theft in Active Directory
• Investigating suspected Mimikatz or Impacket use
• Auditing accounts with directory replication permissions

Create detection rules and investigation queries from API access logs to flag repeated identifier probing and unusual authorization responses. Helps investigate attempts to access other users’ data and review logging and rate limits.

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• Investigating suspected unauthorized API data access
• Creating detection rules for repeated identifier probing
• Reviewing API logging and rate limits

Investigate Kerberoasting, an attack that targets service account passwords, using Active Directory authentication logs. Examine unusual service ticket requests, correlate endpoint and network evidence, and organize findings with risk levels and recommended response actions.

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• Hunting for unusual service ticket requests
• Investigating suspected service account password attacks
• Validating alerts and organizing response evidence

Investigate misuse of application identities in Microsoft Entra ID using audit and sign-in logs. Provides detection queries and investigation steps for suspicious credential additions, privileged role assignments, consent grants, and service principal enumeration.

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• Investigating suspicious additions of application credentials
• Reviewing privileged roles assigned to application identities
• Building detection rules for Entra ID identity abuse