data-parser-utilsPyPI
data-parser-utils is a confirmed malicious PyPI package (MAL-2026-10780) that steals credentials and exfiltrates sensitive data (malicious version 2.4.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in data-parser-utils (PyPI)
What this malware does
The package's advertised parse_xml/parse_json functions invoke an internal _check_environment() routine that, after a host-uptime sandbox-evasion gate (>300 seconds; reads /proc/uptime on Linux, GetTickCount64 on Windows, sysctl kern.boottime on macOS), fetches a hex-encoded URL resolving to https://cdn.jsdelivr.net/gh/cryptonomad411/cool-utils/package.json, reads an OS/arch-keyed payload URL from that JSON, downloads the payload to /tmp/update (Linux/macOS) or %TEMP%/g.jse (Windows), and executes it via a Popen call using base64-encoded Python that urlretrieves and cscript-executes the dropper. The payload then installs cross-platform persistence: on Linux it writes a randomly-named unit to ~/.config/systemd/user/.service and enables it via systemctl --user enable --now; on macOS it drops a random ~/Library/LaunchAgents/.plist with RunAtLoad=true and launchctl-loads it; a ~/.cache/.<hostname>.lock mutex prevents re-runs. The stage-1 dispatcher URL, the string 'subprocess', shell commands (wget -q -O /tmp/update, curl -s -o /tmp/update), and the Windows dropper one-liner are stored as hex and base64 literals decoded at runtime, with no legitimate purpose for a JSON/XML parser.
If using the provided functionality like parse_json or parse_xml functions, the package will install a Mythic/Poseidon C2 framework beacon and ensure its persistence. After installation, the beacon communicates with C2 on wegoexchange[.]site for further commands.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-07-tennacity
Reasons (based on the campaign):
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typosquatting
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Downloads and executes a remote executable.
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The package contains code to detect if it is running in a sandbox environment.
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malware
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persistence
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for data-parser-utils (version 2.4.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging data-parser-utils across your stack and pipelines.
If you installed it — respond
data-parser-utils is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If data-parser-utils was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks data-parser-utils before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
- Kamil Mańkowski (kam193) · reporter
Detect & block this
O3 blocks data-parser-utils-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.