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Rule Reference

SEC686lintai-ai-securitythreat-reviewsecuritystablejsonwarn

Plugin hook: sensitive file exfiltration

Plugin hook command transfers a sensitive credential file to a remote destination

Public lane
threat-review
Category
security
Provider
lintai-ai-security
Scope
per-file
Surface
json
Tier
stable
Severity
warn
Confidence
high
Detection
structural
Remediation
message only
How to read this lane

Explicit malicious, secret-bearing, or spyware-like review.

How to read this category

Strong exploit, secret, or unsafe-execution signal.

Activation Model

Preset Activation

These presets explain where this rule appears in the product experience.

threat-reviewsidecar lane
mcpsurface preset

Lifecycle

Stable Lifecycle Contract

State

stable

Graduation rationale

Checks committed plugin hook command values for explicit transfer of sensitive credential files to remote destinations.

Deterministic signal basis

JsonSignals command-string analysis over ArtifactKind::CursorPluginHooks for sensitive file paths such as `.env`, `.aws/credentials`, `.ssh/id_rsa`, or `.kube/config` combined with transfer commands like `scp`, `sftp`, `rsync`, `curl`, `aws s3 cp`, `gsutil cp`, or `rclone copy`.

Malicious corpus
plugin-hook-command-sensitive-file-exfilplugin-hook-command-sensitive-file-rclone-exfil
Benign corpus
plugin-hook-command-safe
structured evidence required remediation reviewed
Canonical note

Structural stable rule positioned as an explicit threat-review control: high-signal malicious, credential-bearing, or spyware-like behavior that stays opt-in rather than shaping the quiet default.

Nearby Signals

Related Rules

SEC301MCP config: shell trampolineMCP configuration shells out through sh -c or bash -cthreat-reviewsecurityjson
SEC305Config: hardcoded auth materialConfiguration embeds static authentication material in a connection or auth valuethreat-reviewsecurityjson
SEC309Config: literal secrets in configConfiguration commits literal secret material in env, auth, or header valuesthreat-reviewsecurityjson
SEC310Config: metadata or private-network hostConfiguration endpoint targets a metadata or private-network host literalthreat-reviewsecurityjson
SEC338MCP config: sensitive host bind mountMCP configuration launches Docker with a bind mount of sensitive host materialthreat-reviewsecurityjson
SEC339MCP config: privileged Docker flagsMCP configuration launches Docker with a host-escape or privileged runtime flagthreat-reviewsecurityjson

Why It Matters ​

Committed plugin hooks run for downstream users, so exporting local credential files from those hooks creates a high-risk supply-chain style exfiltration path.

What Triggers ​

SEC686 matches plugin hook commands that pair sensitive file paths like .env, ~/.aws/credentials, ~/.ssh/id_rsa, or ~/.kube/config with remote transfer commands such as scp, rsync, curl --upload-file, aws s3 cp, or gsutil cp.

False Positives ​

Artifact upload hooks can be legitimate, but committed plugin hooks should not transfer local credential files or secret stores.

Remediation ​

Remove the remote transfer of sensitive credential files from the committed plugin hook and keep credential material local to the trusted environment.