Stay Away from Malicious Document Converters
- Greg Meyers
- Mar 21
- 1 min read

The FBI is warning everyone to be vigilant about Threat Actors attempting to distribute Malware and Ransom through free Document Converters. This scam is a classic example of trojanized software, where a seemingly useful tool hides malicious intent. Here’s a breakdown of how these scams typically work and the risks they pose:
How the Document Converter Scam Works:
Bait with Utility: The threat actor promotes a legitimate-sounding tool — like a file converter for DOC to PDF, JPG to PDF, or media downloaders for MP3/MP4.
Malicious Packaging: The software performs the promised task to avoid raising suspicion, but it's bundled with malware.
Access Granted: Once installed, the software may:
Install a remote access trojan (RAT), giving attackers control of the system.
Log keystrokes (keylogger) to steal passwords or financial info.
Exfiltrate files or data in the background.
Install additional malware later (like ransomware or spyware).
Red Flags to Watch For:
The tool is only available via unofficial websites or sketchy pop-up ads.
It asks for unusual permissions (like admin rights) without a clear reason.
No legitimate digital signature or published company info.
Antivirus flags it (but some advanced malware can evade detection).
Stick with Safer Alternatives:
Use trusted, browser-based converters from known platforms (like Adobe, Smallpdf, or Google Docs).
Install apps only from official app stores or verified publishers.
Use a sandbox environment for testing any unknown software.
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