Suspicious Malicious MCP Package devtools-assistant Execution (via process_creation)

ATT&CK techniques

Initial Access → Execution

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
- T1059.006Python
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects installation or execution of the devtools-assistant package a trojanized MCP server used in a supply-chain attack against AI development tooling. Once run it enumerates and exfiltrates developer credentials from files such as .env .aws and .ssh. Catching the pip install or python module invocation flags the compromise at the point of execution.

Reporting behind it

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Suspicious Malicious MCP Package devtools-assistant Execution (via process_creation)

Pivot detection · T1059.006 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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