Demystifying VirusTotal Results: Understanding Alerts and Detections

In the realm of cybersecurity, VirusTotal is a widely used tool for analyzing files and URLs to unveil potential threats. However, interpreting its results can be confusing, especially for those who might assume that a few antivirus (AV) flags indicate a “likely false positive.” It’s crucial to delve deeper into these alerts to ensure comprehensive understanding and accurate assessments.

A Personal Note

Before diving into the details, I want to clarify that my perspective has evolved recently—I once shared the common misconception about interpreting VT results. This reflection is not meant to criticize anyone else who might still hold this viewpoint; instead, it aims to promote informed analysis of VirusTotal outcomes.

An Overview of VirusTotal Analysis

For those seeking a solid grounding in how to interpret VirusTotal results, I recommend watching the informative video by MalwareAnalysisForHedgehogs. The video provides valuable insights into the various terminologies and indicators present in VirusTotal. Check it out here!

Key Elements in VirusTotal Detections

Understanding the nuances of VirusTotal’s reporting can significantly enhance your analysis. Here are some essential considerations:

Detection Patterns

• Reanalysis: Regularly reanalyze files, as detection capabilities evolve. VirusTotal tracks previous scans, so familiarize yourself with historical data.
• Evaluation of Malware Names: Pay attention to if the detected items are classified as “not-a-virus.” This designation often indicates that a file isn’t inherently malicious, but it could be exploited in harmful ways.

Details to Scrutinize

• File Authenticity: Confirm that the file type matches its stated classification.
• Submission Date: Examine the initial submission date. If it predates the release of the software or file being evaluated, there’s a good chance it’s reused malware.
• Alternative Filenames: Take note of other names associated with the file—if these names seem unrelated, you might be dealing with renamed malware. Beware of generic names like update.exe or test.pdf, which are commonly used.

Behavioral Analysis

• File Activity: Investigate the file’s behaviors—such as what files it creates, deletes, or modifies. If it operates outside expected parameters, proceed with caution.
• Registry Changes: Consider whether the file attempts to disable essential features like antivirus