PeStudio is a free tool performing the static investigation of any Windows executable binary. A file being analyzed with PeStudio is never launched. Therefore you can evaluate unknown executable and even malware with no risk. PeStudio runs on any Windows Platform and is fully portable, no installation is required. PeStudio does not change the system or leaves anything behind

PeStudio shows Indicators as a human-friendly result of the analyzed image. Indicators are grouped into categories according to their severity. Indicators show the potential and the anomalies of the application being analyzed. The classifications are based on XML files provided with PeStudio. By editing the XML file, one can customize the Indicators shown and their severity.

Among the indicators, PeStudio shows when an image is compressed using UPX or MPRESS. PeStudio helps you to define the trustworthiness of the application being analyzed.

PeStudio can query Antivirus engines hosted by Virustotal for the file being analyzed. This feature only sends the MD5 of the file being analyzed. This feature can be switched ON or OFF using an XML file included with PeStudio. PeStudio helps you to determine how suspicious the file being analyzed is.