MAL-2026-10576: Malicious code in tennacity (PyPI)
The PyPI package 'tennacity' versions 1.0.0, 1.2.0, and 1.2.2 are typosquatted malicious packages that install a Mythic/Poseidon C2 framework beacon. After installation, the beacon establishes communication with a command and control server at wegoexchange[.]site to receive further commands. The package contains code to detect sandbox environments and ensures persistence on the infected system. This campaign is identified as malicious with clear intent to deploy malware and execute remote code.
AI Analysis
Technical Summary
This threat involves a typosquatted PyPI package named 'tennacity' in versions 1.0.0, 1.2.0, and 1.2.2 that installs a Mythic/Poseidon command and control (C2) beacon. The malicious code ensures persistence on the infected host and communicates with a remote C2 server at wegoexchange[.]site for additional commands. The package also includes sandbox detection mechanisms to evade analysis. The campaign is classified as malicious with activities including malware installation, remote executable download and execution, and persistence mechanisms.
Potential Impact
The malicious package installs a persistent C2 beacon that can receive and execute commands from a remote attacker, potentially leading to unauthorized control of the infected system. The presence of sandbox detection indicates attempts to evade security analysis, increasing the risk of undetected compromise. This can result in data theft, system manipulation, or further malware deployment.
Mitigation Recommendations
No official patch or remediation is available as this is a malicious typosquatting package rather than a vulnerability in legitimate software. The best mitigation is to avoid installing packages from untrusted or suspicious sources and verify package authenticity before installation. Security teams should monitor for and remove any instances of these specific versions (=1.0.0, =1.2.0, =1.2.2) of the 'tennacity' package if found in their environments.
MAL-2026-10576: Malicious code in tennacity (PyPI)
Description
The PyPI package 'tennacity' versions 1.0.0, 1.2.0, and 1.2.2 are typosquatted malicious packages that install a Mythic/Poseidon C2 framework beacon. After installation, the beacon establishes communication with a command and control server at wegoexchange[.]site to receive further commands. The package contains code to detect sandbox environments and ensures persistence on the infected system. This campaign is identified as malicious with clear intent to deploy malware and execute remote code.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This threat involves a typosquatted PyPI package named 'tennacity' in versions 1.0.0, 1.2.0, and 1.2.2 that installs a Mythic/Poseidon command and control (C2) beacon. The malicious code ensures persistence on the infected host and communicates with a remote C2 server at wegoexchange[.]site for additional commands. The package also includes sandbox detection mechanisms to evade analysis. The campaign is classified as malicious with activities including malware installation, remote executable download and execution, and persistence mechanisms.
Potential Impact
The malicious package installs a persistent C2 beacon that can receive and execute commands from a remote attacker, potentially leading to unauthorized control of the infected system. The presence of sandbox detection indicates attempts to evade security analysis, increasing the risk of undetected compromise. This can result in data theft, system manipulation, or further malware deployment.
Mitigation Recommendations
No official patch or remediation is available as this is a malicious typosquatting package rather than a vulnerability in legitimate software. The best mitigation is to avoid installing packages from untrusted or suspicious sources and verify package authenticity before installation. Security teams should monitor for and remove any instances of these specific versions (=1.0.0, =1.2.0, =1.2.2) of the 'tennacity' package if found in their environments.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-10576
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["PyPI"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a561c4668715ace43659dc5
Added to database: 07/14/2026, 11:23:50 UTC
Last enriched: 07/14/2026, 11:33:19 UTC
Last updated: 07/14/2026, 11:33:19 UTC
Views: 4
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