registry / Remote code execution / checkout-accounts-holder
checkout-accounts-holder
Cross-service checkout accounts holder adapter
This report shows the evidence for checkout-accounts-holder@35.2.3, the only known version.
This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThis is a concrete import-time remote-payload execution chain unrelated to the documented holder interface. No install hook is required for compromise.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Requiring/importing checkout-accounts-holder, including normal application startup.
Impact
Arbitrary attacker-controlled native code execution under the importing user's privileges.
Mechanism
Obfuscated remote binary download, temporary-file drop, and detached shell execution.
Attack narrative
A normal require of index.js silently loads _platform.js. Its immediately invoked main routine contacts obfuscated hosts for a platform-specific payload, falling back to DNS TXT records, writes any sufficiently large response to a temporary executable path, marks it executable on Unix, and launches it detached through a shell or cmd.exe.
AI rationale
This is a concrete import-time remote-payload execution chain unrelated to the documented holder interface. No install hook is required for compromise.
Evidence
package.jsonindex.js_platform.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>Windows Temp/dotnet_diag_<random>.exe
Network endpoints9
oob-worker.cf100-416.workers.devoob-worker.cf103-070.workers.devoob-worker.cf102-baf.workers.devoob-worker.cf99-9b3.workers.devoob-worker.cf99-9b3.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.ru
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _platform.js at package import time.
- _platform.js downloads platform binaries over HTTPS and DNS TXT fallback.
- _platform.js writes payloads to /var/tmp or Windows Temp, chmods them, then spawns them detached.
- Remote hosts are obfuscated through string concatenation.
Evidence against
- package.json has no lifecycle scripts.
- lib/telemetry.js is not imported by the public entrypoint.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading sourcelib/telemetry.jsView file
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L120: const _logger = new Logger(
L121: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L122: );
...
L228: "BUILD_NUMBER",
L229: "GITHUB_ACTIONS",
L230: "GITLAB_CI",
...
L279: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L280: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L27494L495: fork() {
L496: const child = new Scope();
High
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L120: const _logger = new Logger(
L121: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L122: );
...
L228: "BUILD_NUMBER",
L229: "GITHUB_ACTIONS",
L230: "GITLAB_CI",
...
L279: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L280: device_app_hash: hashString(process.cwd()),
Low
Weak Crypto
Package source references weak cryptographic algorithms.
Findings
2 Critical1 High2 Medium2 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capability_platform.js
HighChild Processlib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowWeak Cryptolib/telemetry.js
LowFilesystem
Affected versions and remediation
This report applies to checkout-accounts-holder@35.2.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing checkout-accounts-holder@35.2.3. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.