--- canonical: "https://firewall.lpm.dev/npm/@wwkit/sshproxy/v/1.0.10" markdown: "https://firewall.lpm.dev/npm/@wwkit/sshproxy/v/1.0.10.md" package: "@wwkit/sshproxy" report_status: "published" title: "@wwkit/sshproxy@1.0.10 npm security report" verdict: "malicious" version: "1.0.10" --- # @wwkit/sshproxy@1.0.10 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Blocked & quarantined** — Creates persistent remote login access, modifies user SSH settings, may install system software, and leaves background services running. - **Verdict:** Malicious - **Product-default install policy:** Block - **Firewall policy:** Matched malicious - **Public report status:** Published - **Threat category:** Install Hook Abuse - **Selected version:** 1.0.10 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) This is the current Firewall decision for the selected package version, based on the available public evidence. Findings for this version do not establish the status of other versions. AI assessment: malicious; recommendation: publish block. This assessment is supporting evidence; the published decision above determines the current policy. Installing the package silently establishes an SSH tunnel and a detached local control service. When SSH credentials are configured, it adds a generated or existing public key to the configured remote server. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Malicious - **Recorded analysis confidence:** 99.0% - **Started:** 2026-09-15T16:32:27.090Z - **Finished:** 2026-09-15T16:33:55.037Z - **Download time:** 775 ms - **Static scan time:** 136 ms - **AI review time:** 87035 ms - **Total time:** 87947 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** Installing the package silently establishes an SSH tunnel and a detached local control service. When SSH credentials are configured, it adds a generated or existing public key to the configured remote server. - **Trigger:** npm postinstall during package installation - **Impact:** Creates persistent remote login access, modifies user SSH settings, may install system software, and leaves background services running. - **Evidence paths:** package.json, scripts/postinstall.js, src/init.js, src/sshkey.js, src/ProxyManager.js - **Review source:** ai\_review - **Reviewed:** 2026-09-15T16:33:55.037Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** automatic SSH key persistence, SSH configuration mutation, and background tunnel startup - **Attack narrative:** On installation, postinstall invokes the tunnel command. That path creates or reuses a local SSH key, uses configured SSH credentials to connect to the configured host, appends its public key to the remote authorized\_keys file, and changes the local SSH config for dynamic forwarding. It may install autossh, launches it in the background, records process IDs, and then starts a detached web server. These are privileged persistence and system changes without an explicit user command. - **Rationale:** The install hook automatically performs remote SSH key persistence and starts background services. This is concrete unconsented install-time behavior, not merely a user-invoked SSH utility. - **Files touched:** ~/.config/sshproxy/config.json5, ~/.ssh/id\_ed25519, ~/.ssh/config, ~/.ssh/authorized\_keys, ~/.local/share/sshproxy/proxy.pid, ~/.local/share/sshproxy/proxy-web.pid - **Network endpoints:** 127.0.0.1 ### Review decision - **Verdict:** Malicious - **Confidence:** 99.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for block:** The postinstall hook automatically starts a tunnel and a detached web service., Tunnel startup generates or reuses an SSH key, connects using configured credentials, and installs that key on the remote server., The installed remote command appends the key to authorized\_keys, creating persistent remote access., The lifecycle path modifies the user's SSH configuration and can install autossh through system package managers., It starts autossh in the background after the remote-access setup succeeds., Builds a remote command that appends the supplied public key to SSH authorized\_keys., Starts the web server as a detached process and unreferences it. - **Evidence against:** No hard-coded external host is present; the SSH destination comes from user configuration., The web interface defaults to the loopback address. ## Affected versions and remediation This report applies to @wwkit/sshproxy@1.0.10. - Avoid installing @wwkit/sshproxy@1.0.10. Remove it from direct dependencies and check your lockfile for transitive copies. - Choose an independently verified alternative or release. This report does not establish that other versions are safe. - If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment. ## Public findings ### 1. High: Install Time Lifecycle Scripts - **Category:** Manifest - **Confidence:** 90.0% - **Path:** package.json - **Public source:** [View source]() Package defines install-time lifecycle scripts. Public source snippet (untrusted): ```json scripts.postinstall = node scripts/postinstall.js ``` ### 2. Medium: Ambiguous Install Lifecycle Script - **Category:** Manifest - **Confidence:** 75.0% - **Path:** package.json - **Public source:** [View source]() Install-time lifecycle script is not statically allowlisted and needs review. Public source snippet (untrusted): ```json scripts.postinstall = node scripts/postinstall.js ``` ### 3. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 4. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 5. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 6. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 7. Critical: Persistence Backdoor - **Category:** Source - **Confidence:** 90.0% - **Path:** src/sshkey.js - **Public source:** [View source]() Source writes persistence or remote-access backdoor material. Public source snippet (untrusted): ```javascript L2: import path from 'node:path' L3: import { spawnSync } from 'node:child_process' L4: ... L34: `mkdir -p ~/.ssh && chmod 700 ~/.ssh && ` L35: + `echo '${pubKey}' > ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys` L36: ) ``` ### 8. Critical: Trigger Reachable Dangerous Capability - **Category:** Source - **Confidence:** 90.0% - **Path:** src/sshkey.js - **Public source:** [View source]() A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior. Public source snippet (untrusted): ```javascript Trigger-reachable chain: manifest.main -> src/index.js -> src/SshCommands.js -> src/sshkey.js L2: import path from 'node:path' L3: import { spawnSync } from 'node:child_process' L4: ... L34: `mkdir -p ~/.ssh && chmod 700 ~/.ssh && ` L35: + `echo '${pubKey}' > ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys` L36: ) ``` ### 9. High: Trigger Reachable Persistence - **Category:** Source - **Confidence:** 94.0% - **Path:** src/sshkey.js - **Public source:** [View source]() A manifest entrypoint or package-local install chain reaches persistence behavior. Public source snippet (untrusted): ```javascript Trigger-reachable persistence chain: manifest.main -> src/index.js -> src/SshCommands.js -> src/sshkey.js L2: import path from 'node:path' L3: import { spawnSync } from 'node:child_process' L4: ... L34: `mkdir -p ~/.ssh && chmod 700 ~/.ssh && ` L35: + `echo '${pubKey}' > ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys` L36: ) ``` ### 10. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 11. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 12. Medium: Structural Risk Force Deep Review - **Category:** Artifact Inventory - **Confidence:** 100.0% Artifact structure forces deeper review even if the static behavioral verdict is clean. ### 13. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** src/OSystem.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = @wwkit/sshproxy@1.0.6 matchedPath = src/OSystem.js matchedIdentity = npm:QHd3a2l0L3NzaHByb3h5:1.0.6 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 14. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** src/ProxyManager.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = @wwkit/sshproxy@1.0.6 matchedPath = src/ProxyManager.js matchedIdentity = npm:QHd3a2l0L3NzaHByb3h5:1.0.6 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 15. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** bin/index.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = @wwkit/sshproxy@1.0.6 matchedPath = bin/index.js matchedIdentity = npm:QHd3a2l0L3NzaHByb3h5:1.0.6 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 16. High: Known Malware Source Fingerprint Signature - **Category:** Supply Chain - **Confidence:** 94.0% - **Path:** src/OSystem.js - **Public source:** [View source]() Source fingerprint signature matches a known malicious package signature; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = malicious_source_fingerprint_signature signature = 9116449b1da25d48 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @wwkit/sshproxy@1.0.6 matchedPath = src/OSystem.js matchedIdentity = npm:QHd3a2l0L3NzaHByb3h5:1.0.6 similarity = 1.000 shingleOverlap = 10 summary = package final verdict is malicious ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** postinstall - **Dependencies:** 4 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 1 - **Published dependency-graph edges:** 4 ### Published dependency entries - @wwkit/shared 1.0.8 (Dependency) - dotenv ^16.4.5 (Dependency) - json5 ^2.2.3 (Dependency) - ssh2 ^1.16.0 (Dependency) ## Package metadata - **Package:** @wwkit/sshproxy - **Ecosystem:** npm - **Version:** 1.0.10 - **License:** MIT - **Version published:** 2026-09-15T16:05:42.271Z - **Package first seen:** 2026-09-07T15:18:50.832Z - **Package last seen:** 2026-09-27T06:46:45.234Z - **Known versions:** 17 - **Latest version:** 1.0.27 - **Appeal under review:** No - **Description:** SOCKS5 proxy manager (client SSH tunnel / server remote), CLI + web UI - **Author:** bluesliu \ - **Keywords:** socks5, proxy, ssh, autossh, chrome - **Artifact files:** 17 - **Artifact unpacked size:** 75,211 bytes - **Artifact signatures:** 2 - **Attestations:** No ## References - [HTML security report]()