FailMelon Posted July 14, 2020 ID:1394308 Share Posted July 14, 2020 Not sure if false positive javaw.txt Link to post Share on other sites More sharing options...
Staff cli Posted July 14, 2020 Staff ID:1394409 Share Posted July 14, 2020 Can you attach the file? Thanks. Link to post Share on other sites More sharing options...
FailMelon Posted July 14, 2020 Author ID:1394435 Share Posted July 14, 2020 I cannot malwarebytes is preventing me from doing anything with it even on the exclusion list. Link to post Share on other sites More sharing options...
FailMelon Posted July 14, 2020 Author ID:1394443 Share Posted July 14, 2020 Seems like it coming from Java SE Development Kit 8u151 that i have installed. I've tried reinstalling it here is the file i believe that triggered the ransomware detection. https://drive.google.com/file/d/1SJhcVvJfpbVzFLhmFeu4MNaxu0jqfEeM/view?usp=sharing Link to post Share on other sites More sharing options...
Porthos Posted July 14, 2020 ID:1394446 Share Posted July 14, 2020 20 minutes ago, FailMelon said: I cannot malwarebytes is preventing me from doing anything with it even on the exclusion list. Quit Malwarebytes from the system tray and then you should be able to find and zip the file. It is a hidden folder do you will have to enable hidden files. C:\ProgramData\Oracle\Java\javapath_target_1874761593\javaw.exe Link to post Share on other sites More sharing options...
FailMelon Posted July 15, 2020 Author ID:1394586 Share Posted July 15, 2020 After getting rid of 151 it happened again on my latest version, i don't think it is the file it seems like something at runtime is causing it which is resorting in java itself getting flagged? Link to post Share on other sites More sharing options...
RGuatta Posted July 18, 2020 ID:1395314 Share Posted July 18, 2020 I have the same Problem. Suddenly, on Wednesday, I think, Malwarebytes startet to block javaw.exe as ransomware. I switched OFF ransomware scanning till Friday. Switched ransomware scanning ON again on Friday and Malwarebytes wasn't interested anymore in javaw.exe. I thought, "ok, they updated scanning patterns, it was a false positive". This morning Malwarebytes blocked javaw.exe as ransomware again. After I updated Java Runtime to the latest version, there is silence again. I hope, it stays that way. Link to post Share on other sites More sharing options...
RGuatta Posted July 18, 2020 ID:1395321 Share Posted July 18, 2020 My hope is gone. At this moment Malwarebytes blocked javaw.exe again. I think it is not the java runtime, that causes this. I'm running a tool, that monitors outgoing and incoming phonecalls, which uses the java runtime. But I'm using this tool for years, and there was no change or update within the last weeks. I will have to disable ransomware protection again. Link to post Share on other sites More sharing options...
Communism101 Posted July 18, 2020 ID:1395368 Share Posted July 18, 2020 Can confirm this is happening to me aswell. False positive 100%. Please fix. Link to post Share on other sites More sharing options...
Porthos Posted July 18, 2020 ID:1395379 Share Posted July 18, 2020 To all posting about the issue. Be sure your Java is up to the latest version. If you do not have any software that requires it, Just uninstall it as it is a security risk. It is the weekend and researchers might not be available until Monday to fix it. It would also help if all here can zip up the affected file after a restart and attach it here. Link to post Share on other sites More sharing options...
RGuatta Posted July 18, 2020 ID:1395392 Share Posted July 18, 2020 It is the latest version. javaw.zip Link to post Share on other sites More sharing options...
Porthos Posted July 19, 2020 ID:1395395 Share Posted July 19, 2020 51 minutes ago, RGuatta said: It is the latest version. Thanks for the file, The researchers might not see the post until Monday. @cli Link to post Share on other sites More sharing options...
Communism101 Posted July 19, 2020 ID:1395496 Share Posted July 19, 2020 Should i send the File in the state before it gets flagged and broken by Malwarebytes or after? It happens pretty randomly, so i dont know if i can get it to do that again Heres the File before:javaw.zip Link to post Share on other sites More sharing options...
Staff cli Posted July 19, 2020 Staff ID:1395537 Share Posted July 19, 2020 Thanks for providing the files, I whitelisted the file. If it is still detected, please add it to your allow list. Link to post Share on other sites More sharing options...
CatPasswd Posted July 20, 2020 ID:1395560 Share Posted July 20, 2020 I've also gotten bit by this one. Having javaw.exe blocked from running is bad. Very bad. How does one whitelist this? javablocked.txt Link to post Share on other sites More sharing options...
Porthos Posted July 20, 2020 ID:1395585 Share Posted July 20, 2020 2 hours ago, CatPasswd said: How does one whitelist this? Add to the Allow List in Malwarebytes for Windows v4 Link to post Share on other sites More sharing options...
Communism101 Posted July 20, 2020 ID:1395727 Share Posted July 20, 2020 Still happend. Had to whitelist it. Ill look out if it happens again. Link to post Share on other sites More sharing options...
RGuatta Posted July 21, 2020 ID:1395961 Share Posted July 21, 2020 Happened again today. Had to put javaw.exe on the exclusion list. Link to post Share on other sites More sharing options...
ma-tor Posted July 25, 2020 ID:1396870 Share Posted July 25, 2020 Same happened to me. javaw.exe signature seems okay, virustotal result is negative. For now I've added it to the allowlist for ransomware only. It might be of interest that it only occours after ~30m - 2h of running, seemingly randomly. Link to post Share on other sites More sharing options...
Staff tetonbob Posted July 27, 2020 Staff ID:1397335 Share Posted July 27, 2020 Greetings, all affected customers in this topic. Could one or all of you please provide the logs as indicated below? Can you please collect and upload as an attachment the diagnostic data using our MBST? Download and run the Malwarebytes Support Tool Accept the EULA and click Advanced tab on the left (not Start Repair) Click the Gather Logs button, and once it completes, attach the zip file it creates on your desktop to your next reply Thank you. Link to post Share on other sites More sharing options...
CatPasswd Posted July 27, 2020 ID:1397346 Share Posted July 27, 2020 Note that I have not done an exclusion. I simply exit Malwarebytes when it decides I'm no longer allowed to minecraft. mbst-grab-results.zip Link to post Share on other sites More sharing options...
Staff tetonbob Posted July 28, 2020 Staff ID:1397360 Share Posted July 28, 2020 Thanks for the logs @CatPasswd! It's of course your choice, but adding an exclusion from Ransomware only for this executable would keep your system safer, and should address the issue. C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_130862359\javaw.exe https://support.malwarebytes.com/hc/en-us/articles/360038479234-Add-to-the-Allow-List-in-Malwarebytes-for-Windows-v4 Our developers will be investigating this issue. Link to post Share on other sites More sharing options...
RGuatta Posted July 28, 2020 ID:1397440 Share Posted July 28, 2020 Remember that I added javaw.exe to the exclusion list on June 21 and did not chage it since then. I hope the logs will still tell you something mbst-grab-results.zip Link to post Share on other sites More sharing options...
Staff tetonbob Posted July 28, 2020 Staff ID:1397506 Share Posted July 28, 2020 @RGuatta - thank you, this does provide data which can be used for analysis. Please do maintain your exclusion for javaw.exe Link to post Share on other sites More sharing options...
Phlarx Posted August 9, 2020 ID:1399934 Share Posted August 9, 2020 This just occurred for me today. This is on a new system (less than 2 weeks old). mbst-grab-results.zip Link to post Share on other sites More sharing options...
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