Which versions of @aster110/cc2wechat are malicious?

The following npm versions of @aster110/cc2wechat are flagged malicious: 5.1.0. Treat any of these as compromised.

How do I remediate @aster110/cc2wechat if I installed it?

@aster110/cc2wechat establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

I already installed @aster110/cc2wechat — how do I know if it already compromised me?

If @aster110/cc2wechat was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is @aster110/cc2wechat part of a known attack campaign?

Yes — @aster110/cc2wechat is associated with the IN-MAL-2026-017064 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find @aster110/cc2wechat across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @aster110/cc2wechat (version 5.1.0).

Malicious package

@aster110/cc2wechatnpm

Advisory published Aug 7, 2026Updated Aug 7, 2026

@aster110/cc2wechat is a confirmed malicious npm package (MAL-2026-13520) that opens a backdoor for remote access (malicious version 5.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @aster110/cc2wechat (npm)

MAL-2026-13520

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall @aster110/cc2wechat

What this malware does

The package runs a daemon that long-polls Tencent's iLink Bot API (ilinkai.weixin.qq.com) for incoming WeChat messages and forwards each message body into a locally hosted AI agent that is spawned with all approval and sandbox gates disabled. Specifically, TmuxDelivery.deliver writes the message text (sendToSession(sessionName, "[微信...] " + ctx.text)) into a tmux session whose command line is CC2WECHAT_CONTEXT=... claude --dangerously-skip-permissions, using tmux load-buffer + paste-buffer + send-keys Enter to submit the input. An alternative backend spawns codex exec --json --dangerously-bypass-approvals-and-sandbox and feeds the same WeChat message stream into it. Because these AI CLIs are configured to auto-execute shell commands and filesystem operations without prompts when safety flags are disabled, any party able to send a WeChat message to the linked account can drive arbitrary shell and file operations on the machine running the daemon. The tool is documented in the README as full-host access requiring a disposable VM. The startup entry point is a bin CLI (cc2wechat start), so the remote-shell surface materializes when the operator launches the daemon rather than on npm install or require().

Malicious versions

1 flagged

5.1.0

Indicators of compromise (SHA-256)

a22dda7bf5c10da8b67b359d665b133709826bdebbd6632fc0fcf04551f1efac

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for @aster110/cc2wechat (version 5.1.0).
If you installed it — respond
@aster110/cc2wechat establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If @aster110/cc2wechat was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @aster110/cc2wechat on npm has been identified as a malicious package (version 5.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-017064

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks @aster110/cc2wechat-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

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