MALWARE FAMILY

Valak

Internal ID: js.valak
1
aliases
Last seen:Mar 17, 2026

Intelligence Profile

According to PCrisk, Valak is malicious software that downloads JScript files and executes them. What happens next depends on the actions performed by the executed JScript files. It is very likely that cyber criminals behind Valak attempt to use this malware to cause chain infections (i.e., using Valak to distribute other malware).

Research shows that Valak is distributed through spam campaigns, however, in some cases, it infiltrates systems when they are already infected with malicious program such as Ursnif (also known as Gozi).

Threat Analysis

Valak 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

js.valak

Research Links

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