HOMETHREATSFlesh Stealer
MALWARE FAMILY

Flesh Stealer

Internal ID: win.flesh_stealer
1
aliases
Last seen:Mar 17, 2026

Intelligence Profile

According to M4lcode, FleshStealer is a sophisticated, modular, and obfuscated .NET-based information-stealing malware designed for comprehensive data exfiltration from Windows systems. Its architecture is built for scale and stealth, utilizing multithreading to simultaneously run multiple data harvesting routines with minimal system disruption. The malware targets a wide range of applications and services, including browsers, messaging apps, email clients, VPNs, cryptocurrency wallets, FTP clients, game launchers, and local file storage.

Threat Analysis

Flesh Stealer 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

Quick Facts

TypeMalware Family
Aliases1

Also Known As

win.flesh_stealer

Research Links

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.
Flesh Stealer — Malware Family | Threat Intelligence | CTIWATCH.COM