registry / Destructive action / opencode-engos-ai
opencode-engos-ai
This report shows the evidence for opencode-engos-ai@1.20.3. 1 of 19 known versions is blocked or flagged. The newest version, 0.0.0-dev-202608161512, is flagged. See all versions.
AI Security Review
scanned 1d ago · by lpm-firewall-aiThe automatic postinstall hook unlinks existing system command paths named innexarcode and replaces them with links to this package's binary, although the package declares opencode-engos as its command. This is an unrelated overwrite of user system state, so block publication.
Static reason
One or more suspicious static signals were detected.
Trigger
Package installation runs postinstall.mjs automatically.
Impact
An existing command at either path can be removed and subsequent invocations can run this package's binary instead.
Mechanism
The hook unlinks existing /usr/local/bin/innexarcode and /usr/bin/innexarcode paths, then creates symlinks to its binary.
Attack narrative
During installation, the hook may fetch and install a platform binary, then automatically replaces existing /usr/local/bin/innexarcode and /usr/bin/innexarcode paths with links to that binary. The package advertises the command opencode-engos, so overwriting the differently named innexarcode command is unrelated to its declared command and can redirect or remove an existing system command.
AI rationale
The automatic postinstall hook unlinks existing system command paths named innexarcode and replaces them with links to this package's binary, although the package declares opencode-engos as its command. This is an unrelated overwrite of user system state, so block publication.
Evidence
package.jsonpostinstall.mjs/usr/local/bin/innexarcode/usr/bin/innexarcode/tmp/postinstall.log
Decision evidence
public snapshotAI called this Malicious at 88.0% confidence as Malware with low false-positive risk.
Evidence for block
- The postinstall hook runs automatically when the package is installed.
- On non-Windows systems, the hook deletes any existing /usr/local/bin/innexarcode and /usr/bin/innexarcode paths and replaces them with symlinks to its binary.
- The package exposes the command opencode-engos, while the install hook creates the differently named innexarcode command links.
Evidence against
- The hook retrieves a platform binary from npm and verifies it with --version, consistent with installing a CLI binary.
- The shipped bin/opencode-engos.exe is a short shell wrapper that reports an error if postinstall was not run; no concealed payload was identified there.
Behavioral surface
ChildProcessFilesystem
WildcardDependency
Source & flagged code
8 flaggedpackage.jsonView file
•scripts.postinstall = node ./postinstall.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg1{"name":"opencode-engos-ai","bin":{"opencode-engos":"./bin/opencode-engos.exe"},"scripts":{"postinstall":"node ./postinstall.mjs"},"version":"1.20.3","license":"MIT","os":["darwin","linux","win32"],"cpu":["arm64","x64"],"optionalDependencies":{"opencode-engos-linux-x64":"*"}}
High
Suspicious Lifecycle Evidence
The postinstall hook runs automatically when the package is installed.
package.jsonView on unpkg · L1•scripts.postinstall = node ./postinstall.mjs
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgbin/opencode-engos.exe
Findings
6 High3 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSemantic Analysis Limitedbin/opencode-engos.exe
HighSuspicious Lifecycle Evidencepackage.json
HighAi Review Evidencepostinstall.mjs
HighSuspicious Lifecycle Evidencepostinstall.mjs
HighSuspicious Lifecycle Evidencebin/opencode-engos.exe
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumShips Native Binarybin/opencode-engos.exe
MediumWildcard Dependency
LowScripts Present
LowFilesystem
Affected versions and remediation
This report applies to opencode-engos-ai@1.20.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing opencode-engos-ai@1.20.3. 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.
Evidence last updated: .
Source advisory published: .
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