ecto-corsair-flag-7kq3mz
This report shows the evidence for ecto-corsair-flag-7kq3mz@1.0.2. 3 of 3 known versions are blocked or flagged. See all versions.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-6699 confirms this npm version as malicious.
Advisory
MAL-2026-6699
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in ecto-corsair-flag-7kq3mz (npm)
Details
Package wires preinstall, install, and postinstall lifecycle hooks to run postinstall.js, which executes unconditionally on npm install. The script collects hostname, cwd, uid, and environment variables matching FLAG/CTF/NPM/REGISTRY/CI/GITHUB/RUNNER, reads candidate flag files, and uses child_process.execSync to recursively grep installer-side directories (/app, /workspace, /challenge, /home/runner/work/repo/repo,.,..,../..) for flag-shaped strings. The collected manifest is base64-encoded and PUT to http://154.57.164.76:30728/api/modules/<id>, with an additional GET beacon to webhook.site/755defab-ea42-4c1f-9804-43ec567439f5. postinstall.js also tests npm_config_registry against /verdaccio/i to detect successful dependency-confusion landings, and the shipped publish-and-arm.sh and README self-describe the package as an 'armed' dependency-confusion probe. Regardless of the CTF/probe framing, installing this package causes unconsented exfiltration of installer environment and filesystem contents to an attacker-controlled IP.
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to ecto-corsair-flag-7kq3mz@1.0.2.
The same advisory and Firewall decision cover 3 recorded versions
1.0.0, 1.0.1, 1.0.2
The versions list below shows the verdict for each recorded version.
- Avoid installing ecto-corsair-flag-7kq3mz@1.0.2. 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: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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