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@hipmmai/hipmmcode@1.1.1: Malicious npm security report (Block) | LPM Firewall

registry / @hipmmai/hipmmcode / 1.1.1

@hipmmai/hipmmcode@1.1.1

Provider-agnostic AI coding agent for your terminal (binary distribution)

AI Security Review

scanned 22d ago · by lpm-firewall-ai

Installation retrieves a mutable external binary and executes it automatically. The package does not pin or verify the archive, so npm installation can run code outside the reviewed snapshot.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review

Trigger

npm installation, through the postinstall lifecycle hook

Impact

A release-server response can execute arbitrary native code and install skills in the installing user's hipmmcode configuration.

Mechanism

downloads, extracts, de-quarantines, and executes a latest-release binary

Attack narrative

On npm install, postinstall fetches the current GitHub release archive rather than a package-pinned artifact. It extracts and de-quarantines the native executable, then conditionally runs that unreviewed executable to install a skills pack into user configuration. Later command use also executes the same downloaded binary. This creates an automatic remote-code execution path whose payload is absent from the npm snapshot and can change independently of version 1.1.1.

AI rationale

The package's install hook automatically executes an unpinned remote native payload and mutates an agent-related user configuration through that payload. This is concrete install-time remote code execution, not merely a user-invoked binary launcher.

Evidence

package.jsoninstall.jsbin/run.jsdist/hipmmcode.tar.gzdist/hipmmcodedist/default-skills/MANIFEST.toml~/.hipmmcode/skills

Network endpoints

Source & flagged code

6 flagged · loading source

package.jsonView file

•scripts.postinstall = node install.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

8"scripts": { "postinstall": "node install.js" },

High

Suspicious Lifecycle Evidence

Its postinstall hook downloads a mutable latest-release archive from GitHub without an integrity check.

package.jsonView on unpkg · L8

•scripts.postinstall = node install.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

install.jsView file

•matchType = normalized_sha256 matchedPackage = @hipmmai/hipmmcode@1.1.0 matchedPath = install.js matchedIdentity = npm:QGhpcG1tYWkvaGlwbW1jb2Rl:1.1.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

install.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 8318403c5770574a signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = @hipmmai/hipmmcode@1.1.0 matchedPath = install.js matchedIdentity = npm:QGhpcG1tYWkvaGlwbW1jb2Rl:1.1.0 similarity = 1.000 shingleOverlap = 2 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

install.jsView on unpkg

22async function main() { const url = `https://github.com/${REPO}/[redacted]-${label()}.tar.gz`; const dir = path.join(__dirname, "dist"); fs.mkdirSync(dir, { recursive: true }); const tarball = path.join(dir, "hipmmcode.tar.gz"); console.log(`hipmmcode: downloading ${url}`); const res = await fetch(url, { redirect: "follow" }); if (!res.ok) { console.error(`hipmmcode: download failed (HTTP ${res.status})`); process.exit(1); } fs.writeFileSync(tarball, Buffer.from(await res.arrayBuffer())); execFileSync("tar", ["-xzf", tarball, "-C", dir], {

High

Suspicious Lifecycle Evidence

Its postinstall hook downloads a mutable latest-release archive from GitHub without an integrity check.

install.jsView on unpkg · L22