APT / THREAT GROUP

Serpent

aliases

Last seen:Mar 17, 2026

Intelligence Profile

According to Proofpoint, this is a backdoor written in Python, used in attacks against French entities in the construction, real estate, and government industries.

Threat Analysis

Serpent is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.

External References

→https://blogs.vmware.com/security/2022/04/serpent-the-backdoor-that-hides-in-plain-sight.html

→https://labs.k7computing.com/index.php/uncovering-the-serpent/

→https://www.bleepingcomputer.com/news/security/serpent-malware-campaign-abuses-chocolatey-windows-package-manager/

→https://www.proofpoint.com/us/blog/threat-insight/serpent-no-swiping-new-backdoor-targets-french-entities-unique-attack-chain

Quick Facts

TypeAPT / Threat Group

Aliases2

Also Known As

Serpentpy.serpent

External Intelligence

Malpedia: py.serpent

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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