About a month ago, I used PyInstaller and Inno Setup to produce an installer for my Python 3 script. My AVG Business Edition AntiVirus just started complaining with today's update that the program has an SCGeneric Trojan Horse in the main .exe file used to start the program (in the folder created by PyInstaller that has all of the Python "guts"). At first I just thought it was a false positive in AVG, but submitting the .exe file to VirusTotal I get this analysis:
https://virustotal.com/en/file/9b0c24a5a90d8e3a12d2e07e3f5e5224869c01732b2c79fd88a8986b8cf30406/analysis/1493881088/
Which shows that 11 out of 61 scanners detect a problem:
TheHacker Trojan/Agent.am
NANO-Antivirus Trojan.Win32.Agent.elyxeb
DrWeb Trojan.Starter.7246
Yandex Trojan.Crypren!52N9f3NgRrY
Jiangmin Trojan.Agent.asnd
SentinelOne (Static ML) static engine - malicious
AVG SCGeneric.KTO
Rising Malware.Generic.5!tfe (thunder:5:ujHAaqkyw6C)
CrowdStrike Falcon (ML) malicious_confidence_93% (D)
Endgame malicious (high confidence) 20170503
Zillya Dropper.Sysn.Win32.5954
Now I can't say that these other scanners are ones that I have heard of before... but still I'm concerned that it is not just AVG giving a false positive.
I have submitted the .exe file in question to AVG for their analysis. Hopefully they will back off on whatever it is that they thought they were trying to detect.
Is there anything else I can do with PyInstaller to make it so that the .exe launcher that it created won't be considered a Trojan?
I was always getting some false positives with PyInstaller from VirusTotal. This is how I fixed it:
PyInstaller comes with pre-compiled bootloader binaries for different OSs. I suggest compile them by yourself on your machine. Make sure everything is consistent on your machine. For Windows 64-bit, install Python 64-bit. Download PyInstaller 64-bit for Windows. Make sure Visual Studio (VS) corresponding to your Python is installed, check below:
https://wiki.python.org/moin/WindowsCompilers
Compile the bootloader of PyInstaller on your machine with VS. It automatically updates the run.exe, runw.exe, run_d.exe, runw_d.exe in DownloadedPyinstallerFolder\PyInstaller\bootloader\Windows-64bit. Check below for more info on how to compile the bootloader:
https://pyinstaller.readthedocs.io/en/stable/bootloader-building.html
At the end, install PyInstaller. Within the PyInstaller directory, run
python setup.py install
I was able to submit the file in question to AVG's "Report a false detection" page, at https://secure.avg.com/submit-sample. I received a response back fairly quickly (I can't remember exactly how long, but it was less than a day) that they had analyzed my file and determined that it did not have a virus. They said that they had adjusted their virus definitions so that it would not trigger a false positive anymore. I updated my definitions and it was still triggering, so I contacted them again with my virus definition version, and I heard back that the version I had wasn't high enough - I think there was some delay on my definitions because I get them from a local server. But within a day I had the right version of the definitions and the false positive didn't trigger anymore.
So if you have a false positive with AVG, I would recommend this solution - fairly quick and easy to get a resolution to the problem.
I puzzled over this question for two days and finally found a problem with my application. The issue was with the application's icon.
Example for tkinter:
root.iconbitmap('./icon.ico')
When I removed this line of code, the false-positive Trojan was gone.
Also, make sure not to use --icon dependency when you are converting your .py file into .exe. Otherwise, this will cause the same false-positive Trojan detection.
I faced same issue for my small document register project code.
My temporary solution was to allow the app in windows defender and
other solution was to use the command pyinstaller filename.py instead of pyinstaller --onefile filename.py.
I dont know if it is correct. But it worked for me.
I searched many blogs for weeks. But I found nothing..
Today I found a way to convert py to exe without any virus errors.
Virus Total Report
So in this method you do not need to send any reports.. Actually It is very simple.
You need to install a module named Nuitka.
python -m pip install nuitka
Then you need to open command from from the file path. And use the command;
python -m nuitka --mingw64 filename.py
And that's all.
You can use the command
nuitka --help
You can find more at - Nuitka Guide
I had this same problem using python 3.8.5 and pyinstaller 4.5.1
In my case the first exe build was accepted by the antivirus (Windows Defender) but subsequent builds were flagged as having a trojan.
I solved it by using the pyinstaller --clean option every time I built the executable
Reverting back to PyInstaller 3.1.1 from 3.4 resolved similar issues on my end (at least temporarily).
As #boogie_bullfrog told, reverting to a previous version could be a solution. However I used *.spec file to store some data (like pictures and icons). I had the latest 3.5 version (August, 2019) and moving to 3.1.1 caused error when app was compiled (probably due to supporting Python 3.7).
So right now the easiest solution is to downgrade to 3.4
It supports specs from pyinstaller 3.5 and the onefile-app wasn't detected by Windows 10 built-in firewall
What I did was to solve this(make exe files non detectable as virus) was to downgrade pyinstaller by typing in cmd: pip install pyinstaller==4.1.0
And by the way it didn't work on 3.4.0 so I just randomly picked that version(4.1) and its pretty good looking so far :>
I'm pretty sure that it works on more than only that one version but that i experienced personally
Recompile and then reinstall your Pyinstaller bootloader manually.
This was a problem I had for a while, and my friend and I figured out this resolution with the help of many others. It almost always works to resolve the issue.
I posted the specific steps on my medium blog. Shared the link below, but the basic steps are as follows
Purge Pyinstaller Files within your Project and Rebuild
Uninstall Pyinstaller
Build a Pyinstaller Bootloader with your Compiler
Install the newly compiled Pyinstaller
Re-build your EXE with Pyinstaller, and make sure it’s not being be flagged as a virus
How to Resolve the Python Pyinstaller False Positive Trojan Virus
Part 1. Manually Compile your Pyinstaller Bootloader
Part 2. Working with Anti-Virus Developer(s)
I had a similar problem with a pyinstaller exe under Windows. Avira put that file into quarantine since it was considered potentially dangerous (due to heuristics, which means that some segments look typical for a virus, but no virus is actually found).
Keep in mind that the exe files you generate yourself are unique (as a consequence, the Avast scanner usually returns a message "you have found a rare file, we are doing a quick test", and delays execution for 15 seconds to perform a more thorough test).
My solution consists of some steps:
I have uploaded the exe to https://www.virustotal.com/gui/home/upload to check it with many scanners. If just one or two are detecting a virus, you should be on the safe side.
In order to make your local virus scanner accept the file, you can manually accept it for your computer, but this does not solve the underlying problem, so on other computers it would still be flagged as a virus.
Therefore I reported the file as false positive to Avira, which can simply be done by sending it by email. Other scanners have similar feedback lines. I got a feedback by email within one day that it is ok, and the scanner on my pc agrees with this now. Hope that this helps with the next iterations of my exe so that it stays clean.
Had the same problem today. Win8.1 would keep flagging .exe as virus. Updated to pyinstaller 5.7.0 but the issue persisted. Uninstalled pyinstaller 5.7.0 and did a fresh install. Strangely, Win8.1 isn't complaining anymore!
I recently began a project that consists of running simulations of cells. I am very new to programming and completely new to julia. I have to run this code written in julia. I downloaded the language in the juno bundle found here. I am running windows 8.1. I had previously installed the python anaconda bundle, and later installed python 3.5 because I read that it julia compiled in 3+ versions of python.
The problem is that when I attempt to use the code (use the evaluate or evaluate all commands), none of the files I run make the program do what it is supposed to. Often something is not defined, which I can sometimes fix if I run the files that define whatever wasn't defined, but I also get a bounds error (running the cell test file) and assorted other errors. I know that the code does work if run properly.
My question is: am I handling the code wrong and if so how should I run it, or is there something else going on that I am missing?
I spent the last 2 days trying to make qt on windows 7 compile a samba-shared project hosted on a linux machine (which is visible on win7 as volume Z).
The problem is that after the first modification of any of the source file, the compilation simply does nothing. I mean literally, no errors, no warning. You click "rebuild", and you instantly get the green bar as if everything was recompiled (and it is a large project so it would take a while), but nothing is actually done. All I see in the compilation output is "Running Jom.exe on path" and (1 ms later) "Jom.exe returned normally"
At first I tought samba shared files were somehow changed in attributes or the like, so I checked and indeed they change to +x on the linux box, but even after resetting the original permissions the compiler silently refuses to compile. Actually it is not even invoked at all.
If I duplicate such "modified - not working" tree on the win7 machine, I have the same behaviuor, while if I duplicate the tree from the linux box straight from the beginning, qt works as expected.
I dont think its a qt issue, but I really have no clue on how to fix this, I cant even try NFS since win7 is Pro and has no additional NFS support.
Of course clearing the project an re-running qmake doesnt change anything.
Just for completeness, note that if I make some change to a source file from windows the file is indeed changed in the linux box, its just the compiler that seems not to be invoked anymore
I have created a standalone Qt application to run on Windows. It is in a form of a questionnaire, where the user answers a few questions, and when it is done, the app should generate a .txt file with the answers in the same folder where the .exe is.
It works fine on my own machine (Win7, 64b). It also runs on other Windows machines that have no Qt installed (tried it on another two Win7 64b and one Win XP).
The problem is, the first time the app is run on some machines, it does not generate the output text file. It generates it without problems in the subsequent runs of the application. This happened on the XP and one Win7 64b. The other Win7 64b I tested on (other than my own) had no such issues.
I tried to find out what could be causing the problem, but no luck. The application is run from a directory where it is allowed to write, so that would not be the issue.
You could try to output the complete path to the debug console just before you open the file:
qDebug() << "Current Path: " << QDir::currentPath();
That might give you some insights on why sometimes it works or not...
I have developed a Java swing application, then I have deployed it through a .jar package.
I run my application on my PC double-clicking over the .jar file and everything goes fine, everything goes fine from command line (dos prompt) too.
Here my problem.
I have tried to run my app on another PC:
same OS (Windows XP)
same JRE (1.6.0_U13)
but Oracle JInitiator 1.3.1.18 installed (this is the only difference with my PC)
The app works fine only from command line, but not from gui!
Double-clicking over the .jar file I get this error:
`Could not find the main class. program will exit!`
Can this error be due to some conflict between JRE and JInitiator?
Does anybody had the same trouble?
Thanks
edit:
executing .jar files from gui is associated to the "javaw" command
It is probably a conflict with JInit, which changes the association between jar files and the java command used to launch them.
See this thread.
Re-installed java and the problem has gone away.
A quick description might be - jinitiator installs as a fully implemented JRE with some additional features for cached downloads when dealing with applets.
As all the JRE installers I've seen lately do, regardless of if they are new or old, they replace several entries in the registry to become the active JRE. Whatever you installed last will be run unless you provide a full path to java.exe or change the registry to re point at a different JRE.
examine:
HKEY_CLASSES_ROOT\jarfile\shell\open\command
and see if the path to javaw.exe is correct. (or even included)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App
Paths\java.exe and javaw.exe and javaws.exe to check the path there also.
Have you checked your PATH/CLASSPATH/JAVA_PATH variables. It is possible that Jinitiator has installed the wrong version at the front.
Possibly check your manifest entries. See if the MANIFEST.MF in the jar contains the Main-Class attribute set correctly to the class that is supposed to be invoked, if not try setting it.