Security Operations Module
Free Security Log Analyzer
Use the free Security Log Analyzer to inspect authentication logs, detect failed login attempts, identify suspicious IP addresses, extract indicators of compromise (IOCs) and investigate security events directly in your browser.
Upload security logs for analysis
Submit TXT, LOG or CSV files to detect authentication failures, suspicious IP activity, possible brute-force attempts and indicators of compromise.
Drop a log file here
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TXT · LOG · CSVThreat Score
A combined severity score calculated from authentication failures, suspicious source activity, extracted indicators and alert patterns.
Active Threat Score
Incident Summary
Security statistics
Key event counts extracted from the submitted log file.
Log Activity
Distribution of detected event and severity categories.
Security Alerts
High-priority findings generated during log analysis.
Upload and analyze a log file to view security alerts.
Attack Timeline
A chronological view of notable authentication and security events found in the log.
Notable events will appear here after the log has been analyzed.
Detected IOCs
Suspicious IP addresses and other indicators extracted from the submitted log.
Extracted indicators will appear here after analysis.
Parsed Log Events
Search and filter the events extracted from the uploaded log.
| Time | Severity | Event | IP Address |
|---|---|---|---|
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No events available
Upload and analyze a log file to populate this table. |
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Export Analysis Report
Download the current incident assessment for documentation, evidence collection or further investigation.
How to Interpret Security Logs
Understand what the analyzer looks for, how common security signals should be interpreted and why automated findings require investigation context.
What Security Logs Contain
Security and authentication logs record events such as login attempts, authentication failures, source addresses, timestamps and system messages. Analysts use these records to reconstruct activity and identify patterns that deserve further investigation.
Failed Login Patterns
A single failed login is usually not enough to indicate an attack. Repeated authentication failures, especially when they originate from the same source, can provide evidence of password guessing or automated brute-force activity.
Indicators of Compromise
Logs can contain artifacts that are useful during an investigation, including IP addresses, URLs, domains, hashes and CVE references. An extracted indicator is not automatically malicious. Its meaning depends on the surrounding event and investigative context.
Understanding the Threat Score
ThreatHawk combines several detected signals into a severity score to help prioritize review. The score is a triage aid rather than a definitive measurement of an attack. Higher scores indicate that more suspicious characteristics were detected in the submitted log.
Why Timelines Matter
Chronological event ordering helps analysts understand how suspicious activity developed. Comparing authentication failures, source addresses and notable events over time can reveal patterns that are difficult to recognize from individual log entries alone.
Automated Analysis Has Limits
Log analysis tools can identify patterns and reduce manual triage, but they cannot independently establish that a security incident occurred. Parser limitations, incomplete logs and legitimate administrative activity can all affect the result. Findings should be validated against other evidence.
About Log Analysis
Learn how ThreatHawk examines security logs, identifies suspicious activity and supports incident investigation directly within your browser.
Key Features
Explore threat scoring, brute-force detection, IOC extraction, attack timelines, event filtering and incident reporting.
How Log Analysis Works
Understand how uploaded log events are parsed, classified, scored and converted into alerts, indicators and an explainable incident assessment.
Frequently Asked Questions
Find answers about log privacy, supported file types, threat scoring, brute-force detection, IOC extraction and the limitations of automated security analysis.
Are uploaded log files sent to ThreatHawk?
No. Log Analysis processes supported files directly in your browser. ThreatHawk does not intentionally upload, store or maintain a personal history of the log files you analyze. Even so, avoid using confidential production logs on shared or untrusted devices because the browser and local system still handle the data.
Which log file types are supported?
The current Log Analysis module accepts TXT, LOG and CSV files. The parser is designed for common authentication and security-event formats, but highly customized or unusual log structures may not be interpreted perfectly without additional formatting support.
How is the threat score calculated?
The threat score is based on detected security signals such as repeated failed logins, suspicious IP addresses, alert patterns, extracted indicators and other notable events. These indicators are combined into an overall severity score so investigators can quickly understand the apparent level of risk.
How does ThreatHawk detect brute-force activity?
ThreatHawk looks for repeated authentication failures and groups suspicious patterns by source, event type and occurrence frequency. A large number of failed attempts from the same source may indicate password guessing or automated brute-force activity.
What are indicators of compromise?
Indicators of compromise, commonly called IOCs, are values that may be associated with suspicious or malicious activity. In the current module, these primarily include IP addresses extracted from the submitted log and counted across repeated events.
Can Log Analysis confirm that an incident occurred?
No. The module identifies suspicious patterns and produces an explainable assessment, but it cannot independently prove that a security incident occurred. Results should be reviewed alongside system context, endpoint evidence, network data and other investigative sources.
Why might legitimate activity be flagged as suspicious?
Legitimate systems can generate repeated failures, unusual IP activity or noisy alerts during testing, configuration changes, user mistakes or automated processes. The analyzer reports suspicious characteristics, not final guilt verdicts, despite software occasionally behaving as if it has joined a courtroom drama.
Can I search and filter the analyzed events?
Yes. After analysis, you can search parsed events by message, IP address or event details and filter the table by severity. This helps narrow large datasets to the events most relevant to an investigation.
Can I export the incident analysis?
Yes. The Export Analysis Report feature generates a report from the current incident summary, threat score, findings, indicators and parsed events for documentation or further investigation.
Is Log Analysis a replacement for a SIEM?
No. ThreatHawk Log Analysis is a lightweight browser-based investigation tool. It does not replace a full SIEM, continuous monitoring platform, endpoint detection system or professional incident-response workflow.