registry / Remote code execution / multer-orm
multer-orm
Middleware for handling `multipart/form-data`.
This report shows the evidence for multer-orm@2.0.7. 5 of 7 known versions are blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
AI Security Review
scanned 4mo ago · by lpm-firewall-aiSource inspection confirms concrete import-time malicious behavior: obfuscated code downloads and executes a remote binary while attempting Defender exclusion and stealth/elevation. This is unrelated to multer functionality and warrants blocking.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
Application require/import of index.js on Windows
Impact
Remote code execution, antivirus bypass, stealthy payload drop and execution in user profile
Mechanism
obfuscated remote payload downloader and executor with Defender exclusion setup
Attack narrative
A consumer requiring multer-orm loads index.js, which requires lib/feature.js. That file immediately runs mongooseCli() on Windows, checks for a fake Chrome payload path, builds Defender exclusions via temp PowerShell/VBS launchers, fetches a downloader_url from hilbert-self.vercel.app, writes the payload as chrome.exe under Chrome User Data, and executes it hidden or through elevation paths.
AI rationale
Source inspection confirms concrete import-time malicious behavior: obfuscated code downloads and executes a remote binary while attempting Defender exclusion and stealth/elevation. This is unrelated to multer functionality and warrants blocking.
Evidence
package.jsonindex.jslib/feature.js%USERPROFILE%/AppData/Local/Google/Chrome/User Data/chrome.exe%TEMP%/add-exclusions-*.ps1%TEMP%/launch-ps-*.vbs
Network endpoints1
hilbert-self.vercel.app/
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js:99 requires ./lib/feature at module import time, triggering its top-level code.
- lib/feature.js:1 is heavily obfuscated and immediately calls mongooseCli() once initialized.
- lib/feature.js:1 contacts https://hilbert-self.vercel.app/ for a JSON downloader_url, downloads a file, writes it as chrome.exe, then runs it.
- lib/feature.js:1 uses child_process spawn/execFile, PowerShell, cscript.exe, UAC runas, and hidden windows.
- lib/feature.js:1 writes temp .ps1/.vbs launchers and runs Add-MpPreference -ExclusionPath for random existing paths and Chrome directories.
- lib/feature.js:1 disguises payload under AppData/Local/Google/Chrome/User Data/chrome.exe and suppresses errors.
Evidence against
- package.json has no npm lifecycle scripts, so activation is on require/import rather than install hook.
- Most non-feature files match normal multer middleware/storage behavior.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystem
Source & flagged code
5 flagged · loading sourcelib/feature.jsView file
•matchType = previous_version_dangerous_delta
matchedPackage = multer-orm@2.0.3
matchedIdentity = npm:bXVsdGVyLW9ybQ:2.0.3
similarity = 0.889
summary = stored previous version shares package body but lacks this dangerous source file
Critical
Previous Version Dangerous Delta
This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.
lib/feature.jsView on unpkg1const a0_0x4ae873=a0_0xb286;(function(_0x3a71f5,_0x45a658){const _0x22733=a0_0xb286,_0x3773d6=_0x3a71f5();while(!![]){try{const _0xdcead1=-parseInt(_0x22733(0x100))/0x1+parseInt(_0...
High
1const a0_0x4ae873=a0_0xb286;(function(_0x3a71f5,_0x45a658){const _0x22733=a0_0xb286,_0x3773d6=_0x3a71f5();while(!![]){try{const _0xdcead1=-parseInt(_0x22733(0x100))/0x1+parseInt(_0...
High
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution; review context before blocking.
lib/feature.jsView on unpkg · L1Findings
1 Critical4 High4 Medium4 Low
CriticalPrevious Version Dangerous Deltalib/feature.js
HighChild Processlib/feature.js
HighSame File Env Network Executionlib/feature.js
HighObfuscated Payload Loaderlib/feature.js
HighObfuscated
MediumDynamic Requireindex.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to multer-orm@2.0.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing multer-orm@2.0.7. 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: .
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