BVE: LUL Circle Line - Trojan warning

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  • John Hughes

    #1

    BVE: LUL Circle Line - Trojan warning

    Sad to say, my virus checker has today identified the BVE LUL Circle Line .exe as containing the IRC/Backdoor.SdBot Trojan. McAfee has the following to say about it:

    A new variant of this threat has been seen in a large number of email messages. This variant is detected with the 4249 DAT files (and higher) and 4.2.40 engine as IRC-Sdbot. AVERT has received a handful of samples of this variant. When this trojan receives the appropriate command, via IRC, it attempts to SPAM itself using the following email message (note: this is not worm functionality as someone must manually send a mailing command to all of the IRC-Sdbot drones):

    Subject: Hi, I sent you an eCard from BlueMountain.com
    Body: To view your eCard, open the attachment

    If you have any comments or questions, please visit http://www.bluemountain.com/customer/index.pd

    John
    Thanks for using BlueMountain.com.

    Attachment: BlueMountaineCard.pif

    When the attachment is run, the virus infects the local system. It copies itself to the WINDOWS SYSTEM (%SysDir%) directory as iexplorer.exe and creates a registry run key to load the worm at startup:

    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Curr entVersion\
    Run "sysconfig" = iexplorer.exe


    The threat is identified as 'Low' - still, do keep those virus-checkers up to date!



  • damcox

    #2
    RE: LUL Circle Line - Trojan warning

    Hello John,
    This is strange, got through Norton Antivirus, not sure on the version mind you.
    I am sure Steve Green wouldn't upload a file like this on purpose. I have, however, not experianced any trobles with my system, that are noticeable, so maybe it got attached by some other means, e.g. another upload as mine has been on my system since before I became a member at Crotrainz under the name of tube_dude!

    P.S. I use Norton's InterCheck monitor which I upgrade very often and skans the whole computer and registries (I think) for viruses and it has been bang on before hand, I have not come accross it yet.

    Comment

    • SteveGreen
      Senior Member
      • Apr 2003
      • 139
      • UK.

      #3
      RE: LUL Circle Line - Trojan warning

      Hi John

      I have just pulled the files in from the server, including the Circle installer, and run throught them with the latest definitions of Norton 2003 Pro. They're all clear. I take it you downloaded the file from my site and from nowhere else?

      Any worries then please contact me.


      Cheers
      Steve
      Train Sim Central — Your hub for train simulation news, routes, rolling stock and community resources



      Comment

      • John Hughes

        #4
        RE: LUL Circle Line - Trojan warning

        >Hi John
        >
        >I have just pulled the files in from the server, including
        >the Circle installer, and run throught them with the latest
        >definitions of Norton 2003 Pro. They're all clear. I take it
        >you downloaded the file from my site and from nowhere else?
        >
        >Any worries then please contact me.
        >
        >
        >Cheers
        >Steve
        >www.trainsimcentral.co.uk
        >www.bvetrains.co.uk

        Indeed I did - back in late December. Gave me a nice rest from the family over Christmas ;-)

        I use AVG anti-virus and download new virus definitions every week, and the file (the downloadable that is) has passed with flying colours every day until this morning, when the latest AVG update tagged it as containing the Trojan. The downloadable is currently residing in the 'virus vault', safe from causing any damage.

        Whatever the problem is, it's only been picked up by the very latest virus definitions - the latest AVG update is actually dated yesterday, January 16 - so I'd work on the assumption that the original infection dates back a little while but that it doesn't happen very often (it's marked as a low-risk Trojan anyway) so you and I and no doubt others have been blisfully unaware of anything untoward. Certainly I've seen no sign of anything unusual in my computer's behaviour. However, AVG did report that it couldn't 'heal' the file - hence the one-way trip to the Vault ;-)

        I tend to be very careful about virus / Trojan infections, always using the latest definition files and scanning my PC every morning before I start work.

        Anyway, no harm done as far as I can see, and I really do appreciate your promptness in taking the file down for a check. Why do idiots always have to muck things around.....?

        To conclude on a more pleasant note, I really do like the Circle Line sim - sincere thanks for sharing it with us all!

        Comment

        • TimHarvey
          Member
          • Apr 2003
          • 59
          • .

          #5
          RE: LUL Circle Line - Trojan warning

          I just tried a few more files from trainsimcentral, and all came up with the same virus.
          I think however it is just a glitch with AVG, as I checked the same files with Norton AntiVirus 2004 Pro & McAfee VirusScan Home Edition 8.0, and neither of them detected anything.

          Comment

          • SteveGreen
            Senior Member
            • Apr 2003
            • 139
            • UK.

            #6
            RE: LUL Circle Line - Trojan warning

            I seem to remember Anthony B having a report of AVG throwing up virus warnings with some files from the BVEtrains site. AFAIK it was down to something AVG didn't like about the way the SFX files were put together to build the self installers, and nothing to do with the files being infected. I use the same SFX program.

            I've done a search on here for the thread, but can't seem to be able to find it at the moment.

            Cheers
            Steve
            Train Sim Central — Your hub for train simulation news, routes, rolling stock and community resources



            Comment

            • mailer_diablo
              Senior Member
              • Apr 2003
              • 149
              • .

              #7
              RE: LUL Circle Line - Trojan warning

              AVG has raised previously quite a number of false alarms. (including Messenger Plus!, for some weird reasons)

              I suggest checking with other virus scanners as well. (If it is major, Mcafee and Norton would have reported it) ;-)

              Comment

              • John Hughes

                #8
                RE: LUL Circle Line - Trojan warning

                >I just tried a few more files from trainsimcentral, and all
                >came up with the same virus.
                >I think however it is just a glitch with AVG, as I checked
                >the same files with Norton AntiVirus 2004 Pro & McAfee
                >VirusScan Home Edition 8.0, and neither of them detected
                >anything.

                Very interesting indeed - thanks for that. However, AVG reported a specific named Trojan, rather than reporting that its heuristic analysis was pointing to 'Trojan-like' behaviour, and the alert happened immediately after the latest signature files were downloaded, so I tend to think that it actually has found something.

                Whether this is so or not, it does raise the question of whether it's desirable to provide exe files as downloadables rather than zips.

                Thanks to all who've responded!


                Comment

                • pete_makosch

                  #9
                  RE: LUL Circle Line - Trojan warning

                  In regards to messenger plus:
                  This addon has been known to cause serious errors due to it not being made my Microsoft.
                  I would advise scanning of every downloaded file.

                  Has anyone thought of contacting the Virus Scanner Company to see if they can do anything to sort this out?

                  Pete

                  Comment

                  • Mr Gizmo
                    Member
                    • May 2003
                    • 97
                    • .

                    #10
                    RE: LUL Circle Line - Trojan warning

                    A trojan is program that imitates other programs by pretending to be freindly...

                    The reference being in greek times a nasty army bloke offered his rival a rather large wooden trojan horse as a gift (trojan being another name for warhorse) of course that horse contained lots of nasty soldier blokes who then went on to kill everything that moved! And needless to say bobs yer uncle and fannys yer aunt the nasty army bloke that sent the horse won the war got the girl and plundered his way through life and lived happily ever after!

                    a typical trojan uses CSV script in order to operate... has it not occurred to anyone that the virus scanner has detected the CSV script, in our case the objects and assumed the worse..

                    I have tested circle line top to bottom and there is nothing mallicious in it other then the odd police car!

                    So dont panic Mr manwearing or anyone else the files ARE SAFE!




                    Comment

                    • John Hughes

                      #11
                      RE: LUL Circle Line - Trojan warning

                      >A trojan is program that imitates other programs by
                      >pretending to be freindly...
                      >
                      >The reference being in greek times a nasty army bloke
                      >offered his rival a rather large wooden trojan horse as a
                      >gift (trojan being another name for warhorse) of course that
                      >horse contained lots of nasty soldier blokes who then went
                      >on to kill everything that moved! And needless to say bobs
                      >yer uncle and fannys yer aunt the nasty army bloke that sent
                      >the horse won the war got the girl and plundered his way
                      >through life and lived happily ever after!
                      >
                      >a typical trojan uses CSV script in order to operate... has
                      >it not occurred to anyone that the virus scanner has
                      >detected the CSV script, in our case the objects and assumed
                      >the worse..
                      >
                      >I have tested circle line top to bottom and there is nothing
                      >mallicious in it other then the odd police car!
                      >
                      >So dont panic Mr manwearing or anyone else the files ARE
                      >SAFE!

                      This is seriously OT, but Trojan = 'Of Troy' (the Greeks left the horse behind and the Trojans foolishly wheeled it into their city and duly got slaughtered / enslaved when the hidden troops came out at night); and far from living happily ever after, its originator Odysseus - whom some of the gods considered too clever by half - spent the next ten years fighting his way home against every trick the gods could come up with.

                      And Trojans don't need to use CSV scripts; ANY program that looks as if it does one thing while actually doing another is a Trojan.

                      That said, I'm happy to accept assurances that the program's clean!


                      Comment

                      • ChristopherT
                        Senior Member
                        • Apr 2003
                        • 188
                        • .

                        #12
                        RE: LUL Circle Line - Trojan warning

                        I'm downloading the file now, and I'll check it with AVG Build
                        6.0.561, my database is dated 1-13-04. I've never had a problem
                        with files downloaded from Steve's site before and I expect this
                        will probably be a false alarm. If the file passes I'll update
                        the database and try again.

                        Passed, no virus or problems.

                        Updated AVG to build 6.0.566, Database 1/22/04 and rescanned
                        the file, still no problems. That file is clean as far as
                        my system is concerned! That's good enough for me!

                        Christopher Tarana
                        Ferroequinologist

                        Comment

                        • TimHarvey
                          Member
                          • Apr 2003
                          • 59
                          • .

                          #13
                          RE: LUL Circle Line - Trojan warning

                          I'm using AVG, along with the latest definition files, so I downloaded the file (http://www.ste-liz.pwp.blueyonder.co...lul_circle.exe) and checked it.

                          The result:

                          Comment

                          • SteveGreen
                            Senior Member
                            • Apr 2003
                            • 139
                            • UK.

                            #14
                            RE: LUL Circle Line - Trojan warning

                            I've just has someone test the files using the latest definitions and they come up clean. Problem with a certain version of AVG perhaps?

                            I also quote the following text from the bvetrains site from a while ago.

                            " Incorrect and False Virus Detection

                            All downloads available from the BVE UK Train Collection are checked for virii prior to upload and all downloads are virus free, however some members of the BVE community who use the "Avast32" anti-virus scanner have recently reported virii being found within downloads available from this site - after investigation and with help from Vince Black (http://members.lycos.co.uk/vinceblack/), we can confirm that no downloads contain virii, and in fact this anti-virus software has wrongly identified virus signatures in the new self-extracting installations now in use at the BVE UK Train Collection. We'd just like to re-assure all vsitors that all downloads are verified as being virus free. "


                            Cheers
                            Steve
                            Train Sim Central — Your hub for train simulation news, routes, rolling stock and community resources



                            Comment

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