How to Use PEStudio to Examine Windows Executables Safely

Want to dig deep into .exe files — without running them?
PEStudio is a free tool used by malware analysts to inspect Windows executables safely.

Here’s a beginner’s guide to using it properly.

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✅ 1. Download and run PEStudio

Official site: https://www.winitor.com

• No installation needed (portable app)

• Works offline

✅ Open PEStudio → Drag-and-drop .exe file into it.

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✅ 2. Analyze general info

PEStudio shows:

• File size

• Architecture (x86, x64)

• Timestamps

• Entry points

• Compilation details

✅ Helps identify fake or outdated compilers.

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✅ 3. Scan for suspicious indicators

PEStudio flags:

• Obfuscated strings

• Suspicious API calls (CreateRemoteThread, ShellExecute)

• Blacklisted resources

✅ “Red” lines = high-risk behavior.

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✅ 4. Check imports and exports

Look at:

• DLLs used

• Functions imported

• Hidden exports

✅ Malware often uses Windows API for stealth or persistence.

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✅ 5. View embedded resources

Malicious files often include:

• Icons

• Fake UI assets

• Hidden executables/scripts

✅ Use the Resources tab to explore embedded elements.

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Key points to remember

• PEStudio = safe, no-execute file analysis

• Great for investigating unknown .exe files

• Flags common malware techniques instantly

• Use it before you run any risky software