APT / THREAT GROUP💰 FINANCIALHIGH

ExByte

2
aliases
Last seen:Mar 17, 2026

Intelligence Profile

ExByte is a custom data exfiltration tool and infostealer observed being used during BlackByte ransomware attacks.

Threat Analysis

ExByte is a high-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of financial.

Financially motivated threat actors like ExByte prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.

With high sophistication, ExByte is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.

External References

Quick Facts

TypeAPT / Threat Group
Motivation💰 financial
Sophisticationhigh
Aliases2

Also Known As

ExBytewin.exbyte

External Intelligence

Malpedia: win.exbyte

Research Links

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.
ExByte — APT / Threat Group | Threat Intelligence | CTIWATCH.COM