Introducing, The New Prevx Edge.

Discussion in 'Prevx Releases' started by trjam, Nov 13, 2008.

Thread Status:
Not open for further replies.
  1. softtouch

    softtouch Registered Member

    Joined:
    Jan 31, 2006
    Posts:
    415
    If I disable heuristics, I lost all the power of prevx. So that is out of question.
    And excluding the folder make no sense too, because all my client will have the same issue.

    When prevx flag it at the first start, and at the second start not anymore ("but are trusted after they're analyzed after the first execution"), why does it happen again, when I compile the same exe, which is binary identical and start it again? The only thing what changed is the compilation time. When comparing with a hex editor, they are both identical, same CRC.
    I don't know why all the delphi executables are always flagged...
     
  2. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK
    From what you've sent me before, your exes are packed with PECompact2. Could you send me some of the test exes so I can see what's flagging them now?
     
  3. Searching_ _ _

    Searching_ _ _ Registered Member

    Joined:
    Jan 2, 2008
    Posts:
    1,988
    Location:
    iAnywhere
    I tried to install Prevx 3.0 and it froze my Windows.
    After installing it attempts to perform a learning scan but there is no HDD activity. I can't even shut down or reboot the computer. I can only unplug it.
    I have tried it in two other rollback snapshots and the results are the same.
     
  4. trjam

    trjam Registered Member

    Joined:
    Aug 18, 2006
    Posts:
    9,102
    Location:
    North Carolina USA
    It is working fine for me. Joe should be here soon.
     
  5. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK
    I'm not sure what would cause this :doubt: Do you have any HIPS products installed which could be interfering/showing a warning about direct disk access?
     
  6. Retadpuss

    Retadpuss Suspended Member

    Joined:
    Apr 4, 2009
    Posts:
    226
    Just to fill an idle moment, an associate and I just tested Prevx, Avira and A2 against some new malware (39 samples) all less than 24 hours old.

    I have run loads of tests like this and A2 has usually comes out top, with Avira a very close second. More recently, Prevx has sometimes beaten A2, but today, Prevx has excelled itself and got 36 out of 39! A2 got nearly half of them. a stonking result for Prevx!

    I know this is only a small sample, but I run tests quite frequently and it looks like Prevx is getting better and better.

    I will do a test of a few thousand zero day naties at some point in the next week or so, which should give a more meaningful result.

    To date, I have run these on demand tests under Returnil. In future, I will run them under VMware - but Im assuming this could be problematic with the way the Prevx license works?
     
  7. lodore

    lodore Registered Member

    Joined:
    Jun 22, 2006
    Posts:
    9,065
    Hey Joe,
    how can I send you some fp's for you to fix?

    its the launcher.exe for the game perfectworld

    located at Z:\Program Files (x86)\Perfect World UK\launcher\lancher.exe
    OS vista home premium 64bit.
    Kaspersky had an fp on the same file a few weeks ago and fixed it.

    once the fp has been fixed do i simply run a new scan so it doesnt get detected again?
     
    Last edited: May 5, 2009
  8. trjam

    trjam Registered Member

    Joined:
    Aug 18, 2006
    Posts:
    9,102
    Location:
    North Carolina USA
    Outstanding!!!

    Doesnt surprise me, but thank you for your testing and candid feedback.
     
  9. IceDogg

    IceDogg Registered Member

    Joined:
    Mar 21, 2006
    Posts:
    26
    Location:
    Arkansas
    Got a question about license. I know you don't allow one to be shared on multiple PC's and I understand that. But I have just installed win7 in a dual boot and I can't run it on both of them? I only have win7 RC and just testing it out mainly, but it's the same PC. Is there any way I can run it on both since in reality I won't be running either at the same time therefor getting more out of the app then I should be.

    PS.. I did look and didn't find an answer, but I do overlook things at times. My apologies if that's the case here.
     
  10. Triple Helix

    Triple Helix Specialist

    Joined:
    Nov 20, 2004
    Posts:
    13,275
    Location:
    Ontario, Canada
    It's per OS hopefully there will be changes in the future! But you can try it and under My Prevx https://my.prevx.com you can make changes to your License by removing and adding but you can only do it so many times and you can contact support and they will be happy to help you out as I did many times! :thumb:

    TH
     
  11. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK
    In the meantime until we change the system, we are willing to make exceptions - feel free to PM me your license key and I should be able to get it working on both partitions :)
     
  12. softtouch

    softtouch Registered Member

    Joined:
    Jan 31, 2006
    Posts:
    415
    Would be great if prevx would run on a per-pc basis, not per-os basis.
    I too have that issue. My main OS is Vista, but run XP and 2000 under VirtualPC to test my software products, and have there of course no Prevx, because it wont install, even its the same PC.
     
  13. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK
    You can still install and run it unlicensed - it functions precisely the same in the evaluation version as it does in the registered version, it just won't block an infection which it finds.

    We're working on identifying computers by hardware but there are many caveats to this approach as well so either way is a tradeoff (and there are relatively very few users who actually use multi-OS installations).
     
  14. IceDogg

    IceDogg Registered Member

    Joined:
    Mar 21, 2006
    Posts:
    26
    Location:
    Arkansas
    PM Sent and thank you very much for your help. I do understand that most user will not have an issue with this. I was just caught off guard by this small problem. You really do go out of your way to help your users..that I won't forget.
     
  15. softtouch

    softtouch Registered Member

    Joined:
    Jan 31, 2006
    Posts:
    415
    ...as you wrote, "it just won't block an infection", so it make no sense to me to install the unregistered version.
    I hope there will be a solution before I ditch nod32 this coming June. I will run by then just prevx and defensewall, and an unprotected OS in the virtual pc means a lot of reinstalling the OS because of infections, I guess.
    It really looks like I have to purchase for each OS (on the same PC) a new license...
     
  16. Searching_ _ _

    Searching_ _ _ Registered Member

    Joined:
    Jan 2, 2008
    Posts:
    1,988
    Location:
    iAnywhere
    I use Comodo with Defence+. I allowed/remembered on the first try.
    Round 2 Disabled Defence+ completely. Same result. Frozen when it tries to scan. No HDD activity period. Windows locked up tighter than a ducks...
    I also use Rollback software.
     
  17. NoIos

    NoIos Registered Member

    Joined:
    Mar 11, 2009
    Posts:
    607
    Hi,
    I believe an FP...have no reason to believe it's real infection:
    (ACTIVE) c:\program files\common files\tortoiseoverlays\tortoiseoverlays.dll [PX5: 64A785CF0003541A3A620100C08A490035A4B5A2] Malware Group: High Risk Worm

    tortoiseoverlays.dll must be part of the tortoisesvn ( http://tortoisesvn.tigris.org/ )
     
  18. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK


    Indeed it is. I've fixed it now... bit surprised this was caught as this should have been trapped and ignored automatically, I suspect we have a bug somewhere and I'll bring this up with the head of the research team shortly.

    Thanks for the report :) Let me know if you see anything else similar to this!
     
  19. Dr33

    Dr33 Registered Member

    Joined:
    Jan 23, 2009
    Posts:
    103
    were you able to reproduce my problem :)
     
  20. Triple Helix

    Triple Helix Specialist

    Joined:
    Nov 20, 2004
    Posts:
    13,275
    Location:
    Ontario, Canada
    I added another year to my License and it took 15 minutes to show up on my License!

    Very easy transaction! Just wanted to share my experience.

    TH :thumb:
     
    Last edited: May 7, 2009
  21. Mongol

    Mongol Registered Member

    Joined:
    Jul 24, 2004
    Posts:
    1,581
    Location:
    Houston, TX
    Trying to do a scan right now but I am unable to connect to the database. Anyone else noticing this problemo_O...:rolleyes: :eek: :blink:
     
  22. benton4

    benton4 Registered Member

    Joined:
    Nov 29, 2004
    Posts:
    158
    Location:
    Oregon
    I just did a scan and had no problems. You might try again. :doubt:
     
  23. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK
    Everything seems fine from what I can see (and my scans work fine here). Did you by any chance have a recent firewall/AV update? Kaspersky produced a FP against us yesterday which should be fixed now (not sure if you're using Kaspersky but its worth a guess if they're blocking us silently :))
     
  24. PrevxHelp

    PrevxHelp Former Prevx Moderator

    Joined:
    Sep 14, 2008
    Posts:
    8,242
    Location:
    USA/UK
    I'm trying now :D Sorry for the delay - its been an extremely busy week at Prevx this week :D
     
  25. PatG

    PatG Registered Member

    Joined:
    Apr 30, 2004
    Posts:
    579
    Location:
    South Alabama
    Joe: haven't cleaned these up yet but do you think this is FP or threats? One of 'em is Microsoft, please advise.
     

    Attached Files:

Thread Status:
Not open for further replies.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.