MALWARE FAMILY
MAILCREEP
Internal ID: win.mailcreep
1
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to Zscaler, MAILCREEP is a Golang-based backdoor leveraging the Microsoft Graph API for its C2 communications.
Threat Analysis
MAILCREEP 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.mailcreep
Research Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.