Behinder

aliases

Last seen:Mar 17, 2026

Intelligence Profile

A webshell for multiple web languages (asp/aspx, jsp/jspx, php), openly distributed through Github.

Threat Analysis

Behinder 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://blog.gigamon.com/2022/09/28/investigating-web-shells/

→https://cyberandramen.net/2022/02/18/a-tale-of-two-shells/

→https://github.com/hktalent/MyDocs/blob/main/BehinderShell.md

→https://harfanglab.io/insidethelab/insights-ivanti-csa-exploitation/

→https://www.elastic.co/security-labs/ref2924-howto-maintain-persistence-as-an-advanced-threat

Quick Facts

TypeAPT / Threat Group

Aliases2

Also Known As

php.behinderBehinder

External Intelligence

Malpedia: php.behinder

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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