TDS-3 vs. Polymorphic Trojans, case example

Discussion in 'Trojan Defence Suite' started by Wayne - DiamondCS, Apr 16, 2003.

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  1. Vampirefo

    Vampirefo Guest

    TrojanHunter can't detect Donald Dick, accurately, if at all, If I run the Trojan, TrojanHunter's port rule detects it, but then again that is just the default port, which could be changed.

    TrojanHunter can't detect the Trojan, so if one changes the port, Donald Dick uses TrojanHunter would miss it all together.
     
  2. Primrose

    Primrose Registered Member

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    Jooske,

    Get me a picture of you wearing a TDS tee shirt and I will use it in the GAV forum as a signature. Promise ;)

    Regrads,
    John
     
  3. Jooske

    Jooske Registered Member

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    There are no pictures of me on internet except for my avatar and thus i'll keep it.
    Might asp SnapDragin some day if she can change some pixels for me into DCS in my crystal ball :)
    Was not asking for the drop bear or the roo yet.
    But as Blazey made such a beauty for us with the most suitable captain of DCS euhmmmmmm see for yourself: this was made before the stuff shopped btw:
    http://www.diamondcs.com.au/forum/showthread.php?s=&postid=13104#post13104

    shoppe here
    http://www.cafeshops.com/diamondcs/
     
  4. Tuulilapsi

    Tuulilapsi Registered Member

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    KAV seems able to detect Donald Dicks up to 1.55, unsurprisingly. :D
     
  5. Jooske

    Jooske Registered Member

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    I wonder if DCS was maybe the first, as they tested with all the known scanners, updated, and Wayne would never post to be the only one if their scanners in the lab from other brands would have detected them, might be such a thing i guess.

    anyway: for us users the most important the nasties are disarmed to the last nasty bit asap! As KAV is among my favorites av/at as recommended extra opinion, i would not have expected (hoped) less :)
     
  6. Tuulilapsi

    Tuulilapsi Registered Member

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    Well, the last I updated my KAV was 12.04. and Wayne posted this thread on the 16th. Then again, KAV isn't an anti-trojan, so...
     
  7. Magnus

    Magnus Guest

    Hi vampirefo,

    Please try scanning with today's ruleset update. TrojanHunter should now detect all Donald Dick servers.
     
  8. Jooske

    Jooske Registered Member

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    Thank you Magnus, in name of the whole cleaned internet community with yet another contribution to detection!
    Always great to see people contributing and alerting others adequately.
    Does it with detection also clean out? Or do users need to do things manually like deleting registry keys and clean out system restore, bins etc?
    I remember the older versions' descriptions with some instructions this is why i ask.
    Hope nobody will get infected in reality, btw!
     
  9. Magnus

    Magnus Guest

    Hi Jooske,

    Thank you! I'm always happy to improve TrojanHunter detection, especially in this case. And yes, I believe everything should be taken care of when cleaning this one.
     
  10. Vampirefo

    Vampirefo Guest

    Thanks Magnus,

    With todays update TH, was able to detect all Donald Dick servers, that I made.

    Best Regards
    Vampirefo
     
  11. Wayne - DiamondCS

    Wayne - DiamondCS Security Expert

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    Now that xor/Michael has posted a method of detecting DD you'd think all anti-trojans could now detect it, but as of today only 2 do ... it remains an elusive trojan :)
     
  12. angel

    angel Registered Member

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    >TDS-3 is the only anti-trojan scanner capable of detecting this trojan

    Sure you detect any variant?
     
  13. Jooske

    Jooske Registered Member

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    Hi Angelo, let's hope so! How many more variants are there in the meantime? Or am i now confusing versions with variants?
    Did you try and successfully i hope, with your various tools?
     
  14. angel

    angel Registered Member

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    Well ... i did a little test. I generated a little testset with 11.000 Donald Dick servers. Just executed 11.000 times the ddsetup.exe and copied the server into one directory.

    After this I let GAV, TDS-3 and TrojanHunter scan the folder. Only TrojanHunter detected ANY veriant. GAV and TDS-3 missed 40 - 80 servers. I have no webspace available. So if someone has webspace just contact me at angelo.bachmayr@chello.at . I will send you the screenshoots and the tool that generates as many servers as you want automatically and i can post them here.

    Wayne and Co:
    Are you interested in the test set? I can upload them to a FTP server of your choice. Just write an email to angelo.bachmayr@chello.at .
     
  15. Jooske

    Jooske Registered Member

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    Sounds interesting. It's ANZAC Day (a holiday) in Australia, so don't expect an answer before monday.
    Thought you maybe found more variants after the 1.55.
     
  16. Paul Wilders

    Paul Wilders Administrator

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    Angelo,

    Don't hesitate to send me the stuff mentioned; webmaster@wilders.org .

    btw: talking unpacked newly generated servers here?

    regards.

    paul
     
  17. Wayne - DiamondCS

    Wayne - DiamondCS Security Expert

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    I was just notified of this via SMS :)
    Angelo we ended up creating over 4000 Donald Dick servers and were able to achieve 100% detection from that test set, Im surprised that your test set of 11000 was able to yield variants that weren't detected, but our detection technique is very specific (so as to avoid any false alarms), so it will be very easy to ensure detection of all 11,000 variants simply by relaxing the routine a little - essentially making it a little simpler. I've sent you an email - can you please send us the servers that _weren't_ detected and we'll re-vamp the detection routines on Monday.

    Many thanks,
    Wayne
     
  18. Paul Wilders

    Paul Wilders Administrator

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    Sounds perfectly sound and reasonable to me - kudoos, Wayne :cool:.

    regards.

    paul
     
  19. angel

    angel Registered Member

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    >Don't hesitate to send me the stuff mentioned; webmaster@wilders.org .
    >btw: talking unpacked newly generated servers here?

    Yes unpacked ones :D. I did a rescan with the new database today but nothing has changed. 10934 of 11000 if i remember correctly.

    I will do a rescan with TH and GAV with current updates and send them to you, admin.

    BTW:
    Is it possible that the "Notify on replies" does not work correctly?
     
  20. Paul Wilders

    Paul Wilders Administrator

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    Thanks for the info. Have a look at Wayne's reply in regard to relaxing the routine - upcoming monday as for detection from your freshly made trojan servers ;)

    Much obliged - please zip/rar the file(s).

    We'll check it out.

    regards.

    paul
     
  21. Jooske

    Jooske Registered Member

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    The notifications should be sent to the email addy of your registration here, i get them properly of every thread i subscribed on, (big wish to have an option of notifications for all the threads in one forum!! so there would be no need to go through each thread individually)
    but it can take minutes before i see the notifications in my mailbox.
    I heard from another person not getting them, not sure why and if this was ever solved and how.
     
  22. angel

    angel Registered Member

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    Ok ... i redid the test - now with 1000 ddick servers only. This are the results of TDS-3 ...

    It detected 989 of 1000 ...
     

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  23. angel

    angel Registered Member

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    Now with GAV 3.5 ...

    It detected 990 of 1000 ...
     

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  24. angel

    angel Registered Member

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    And last but not least Trojan Hunter 3.5 ...

    It detected 1000 of 1000 ...
     

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  25. Paul Wilders

    Paul Wilders Administrator

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    Angelo,

    No offense, but this is useless. Please read the reply from Wayne - and answer to his email sent to you.

    regards.

    paul
     
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