PureCrypter

Internal ID: win.purecrypter

aliases

Last seen:Mar 17, 2026

Intelligence Profile

According to zscaler, PureCrypter is a fully-featured loader being sold since at least March 2021

The malware has been observed distributing a variety of remote access trojans and information stealers

The loader is a .NET executable obfuscated with SmartAssembly and makes use of compression, encryption and obfuscation to evade antivirus software products

PureCrypter features provide persistence, injection and defense mechanisms that are configurable in Google’s Protocol Buffer message format

Threat Analysis

PureCrypter is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.

External References

→https://any.run/cybersecurity-blog/pure-malware-family-analysis/

→https://blog.netlab.360.com/purecrypter-is-busy-pumping-out-various-malicious-malware-families/

→https://blog.sekoia.io/mallox-ransomware-affiliate-leverages-purecrypter-in-microsoft-sql-exploitation-campaigns/

→https://www.prodaft.com/m/reports/RIG___TLP_CLEAR-1.pdf

→https://www.recordedfuture.com/research/tag-144s-persistent-grip-on-south-american-organizations

→https://www.zscaler.com/blogs/security-research/technical-analysis-purecrypter

Quick Facts

TypeMalware Family

Aliases1

Also Known As

win.purecrypter

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.

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