Gold Open Source
ExplorePackagesVulnerabilitiesCWEsMCP ServersScan
Login
Gold Open Source

The authoritative source for production-ready open-source components. Every package, container image, AI model, and MCP server undergoes rigorous verification for security, malware, and license compliance.

Explore Gold

  • Explore Everything
  • Packages
  • Gold Certified Packages
  • Container Images
  • AI Models
  • MCP Servers
  • Agent Skills
  • Chip Manufacturers

Security Data & Tools

  • Scan Your Dependencies
  • Trending Threats
  • Threat RSS Feeds
  • CVE Database
  • Actively Exploited (KEV)
  • SGZ Zero-Days
  • CWE Index
  • MITRE ATT&CK
  • Malicious Packages
  • Security Glossary
  • Supply-Chain Report
  • Developers (API & Badge)
  • Chrome Extension
  • Credits & Data Sources

Products

  • The Platform
  • ESSCM
  • Portal
  • TPRM
  • OSM
  • Cowork
  • Code / Runner
  • Guard

Use Cases

  • Know Your Software
  • Auto-Fix Vulnerabilities
  • Asset Discovery
  • AI Governance
  • MCP Server Security
  • Supply Chain Compliance
  • Zero-Day Discovery
  • All Use Cases

Company

  • About
  • Pricing
  • Blog
  • Documentation
  • Safeguard Academy
  • Contact
  • Privacy Policy
  • Terms of Service

© 2026 Gold Open Source. All rights reserved.

Built with care bySafeguard
Home/ATT&CK/Software/S0487
MITRE ATT&CK Malware

Kessel (S0487)

ShareXLinkedInRedditHN

[Kessel](https://attack.mitre.org/software/S0487) is an advanced version of OpenSSH which acts as a custom backdoor, mainly acting to steal credentials and function as a bot. [Kessel](https://attack.mitre.org/software/S0487) has been active since its C2 domain began resolving in August 2018.(Citation: ESET ForSSHe December 2018)

Platforms: Linux

▪Techniques implemented (14)

T1027.013Encrypted/Encoded FileT1105Ingress Tool TransferT1030Data Transfer Size LimitsT1059Command and Scripting InterpreterT1140Deobfuscate/Decode Files or InformationT1016System Network Configuration DiscoveryT1554Compromise Host Software BinaryT1082System Information DiscoveryT1090ProxyT1556Modify Authentication ProcessT1132.001Standard EncodingT1560Archive Collected DataT1041Exfiltration Over C2 ChannelT1048.003Exfiltration Over Unencrypted Non-C2 Protocol
S0487on MITRE ATT&CK →

MITRE ATT&CK® is a registered trademark of The MITRE Corporation. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.