Virus:TR/Dldr.Bagle.FO.3
Date discovered:25/01/2006
Type:Trojan
Subtype:Downloader
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:33.741 Bytes
MD5 checksum:52678bb535c801d335090B8f5bee3e5a
VDF version:6.33.00.158

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Symantec: W32.Imav.A
   •  Kaspersky: Email-Worm.Win32.Bagle.fg
   •  TrendMicro: TROJ_BAGLE.BU
   •  F-Secure: W32/Mitglieder.HJ
   •  Bitdefender: Win32.Bagle.GA@mm


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Downloads files
   • Drops a file
   • Registry modification

 Files It copies itself to the following location:
   • %WINDIR%\im_1.exe



The following file is created:

– %SYSDIR%\im_2.exe Detected as: TR/Dldr.Bagle.FO.2




It tries to download some files:

– The locations are the following:
   • http://www.cnsrvr.com/**********
   • http://www.casinofunnights.com/**********
   • http://www.ec.cox-wacotrib.com/**********
   • http://www.crazyiron.ru/**********
   • http://www.uni-esma.de/**********
   • http://www.sorisem.net/**********
   • http://www.varc.lv/**********
   • http://www.belwue.de/**********
   • http://www.thetildegroup.com/**********
   • http://www.vybercz.cz/**********
   • http://www.kyno.cz/**********
   • http://www.forumgestionvilles.com/**********
   • http://www.campus-and-more.com/**********
   • http://www.capitalforex.com/**********
   • http://www.capitalspreadspromo.com/**********
   • http://www.prineus.de/**********
   • http://www.databoots.de/**********
   • http://www.steintrade.net/**********
   • http://www.njzt.net/**********
   • http://www.emarrynet.com/**********
   • http://www.zebrachina.net/**********
   • http://www.lxlight.com/**********
   • http://www.yili-lighting.com/**********
   • http://www.fachman.com/**********
   • http://www.q-serwer.net/**********
   • http://www.wellness-i.com/**********
   • http://www.newportsystemsusa.com/**********
   • http://www.westcoastcadd.com/**********
   • http://www.wing49.cz/**********
   • http://www.posteffects.com/**********
   • http://www.provax.sk/**********
   • http://www.casinobrillen.de/**********
   • http://www.duodaydream.nl/**********
   • http://www.finlaw.ru/**********
   • http://www.fitdina.com/**********
   • http://www.flashcardplayer.com/**********
   • http://www.flox-avant.ru/**********
   • http://www.lotslink.com/**********
   • http://www.algor.com/**********
   • http://www.gaspekas.com/**********
   • http://www.ezybidz.com/**********
   • http://www.genesisfinancialonline.com/**********
   • http://www.georg-kuenzle.ch/**********
   • http://www.girardelli.com/**********
   • http://www.rodoslovia.ru/**********
   • http://www.golden-gross.ru/**********
   • http://www.gregoryolson.com/**********
   • http://www.gtechna.com/**********
   • http://www.lunardi.com/**********
   • http://www.sgmisburg.de/**********
   • http://www.harmony-farms.net/**********
   • http://www.hftmusic.com/**********
   • http://www.hiwmreport.com/**********
   • http://www.horizonimagingllc.com/**********
   • http://www.hotelbus.de/**********
   • http://www.howiwinmoney.com/**********
   • http://www.ietcn.com/**********
   • http://www.import-world.com/**********
   • http://www.houstonzoo.org/**********
   • http://www.interorient.ru/**********
   • http://www.internalcardreaders.com/**********
   • http://www.interstrom.ru/**********
   • http://www.iutoledo.org/**********
   • http://www.wena.net/**********
   • http://www.iesgrantarajal.org/**********
   • http://www.alexandriaradiology.com/**********
   • http://www.booksbyhunter.com/**********
   • http://www.wxcsxy.com/**********
   • http://www.coupdepinceau.com/**********
   • http://www.erotologist.com/**********
   • http://www.jackstitt.com/**********
   • http://www.imspress.com/**********
   • http://www.digitalefoto.net/**********
   • http://www.josemarimuro.com/**********
   • http://www.eversetic.com/**********
   • http://www.curious.be/**********
   • http://www.kameo-bijux.ru/**********
   • http://www.karrad6000.ru/**********
   • http://www.kaztransformator.kz/**********
   • http://www.keywordthief.com/**********
It is saved on the local hard drive under: %system drive root%\__dwn_sp.exe At the time of writing this file was not online for further investigation.

– The locations are the following:
   • http://www.cnsrvr.com/**********
   • http://www.casinofunnights.com/**********
   • http://www.ec.cox-wacotrib.com/**********
   • http://www.crazyiron.ru/**********
   • http://www.uni-esma.de/**********
   • http://www.sorisem.net/**********
   • http://www.varc.lv/**********
   • http://www.belwue.de/**********
   • http://www.thetildegroup.com/**********
   • http://www.vybercz.cz/**********
   • http://www.kyno.cz/**********
   • http://www.forumgestionvilles.com/**********
   • http://www.campus-and-more.com/**********
   • http://www.capitalforex.com/**********
   • http://www.capitalspreadspromo.com/**********
   • http://www.prineus.de/**********
   • http://www.databoots.de/**********
   • http://www.steintrade.net/**********
   • http://www.njzt.net/**********
   • http://www.emarrynet.com/**********
   • http://www.zebrachina.net/**********
   • http://www.lxlight.com/**********
   • http://www.yili-lighting.com/**********
   • http://www.fachman.com/**********
   • http://www.q-serwer.net/**********
   • http://www.wellness-i.com/**********
   • http://www.newportsystemsusa.com/**********
   • http://www.westcoastcadd.com/**********
   • http://www.wing49.cz/**********
   • http://www.posteffects.com/**********
   • http://www.provax.sk/**********
   • http://www.casinobrillen.de/**********
   • http://www.duodaydream.nl/**********
   • http://www.finlaw.ru/**********
   • http://www.fitdina.com/**********
   • http://www.flashcardplayer.com/**********
   • http://www.flox-avant.ru/**********
   • http://www.lotslink.com/**********
   • http://www.algor.com/**********
   • http://www.gaspekas.com/**********
   • http://www.ezybidz.com/**********
   • http://www.genesisfinancialonline.com/**********
   • http://www.georg-kuenzle.ch/**********
   • http://www.girardelli.com/**********
   • http://www.rodoslovia.ru/**********
   • http://www.golden-gross.ru/**********
   • http://www.gregoryolson.com/**********
   • http://www.gtechna.com/**********
   • http://www.lunardi.com/**********
   • http://www.sgmisburg.de/**********
   • http://www.harmony-farms.net/**********
   • http://www.hftmusic.com/**********
   • http://www.hiwmreport.com/**********
   • http://www.horizonimagingllc.com/**********
   • http://www.hotelbus.de/**********
   • http://www.howiwinmoney.com/**********
   • http://www.ietcn.com/**********
   • http://www.import-world.com/**********
   • http://www.houstonzoo.org/**********
   • http://www.interorient.ru/**********
   • http://www.internalcardreaders.com/**********
   • http://www.interstrom.ru/**********
   • http://www.iutoledo.org/**********
   • http://www.wena.net/**********
   • http://www.iesgrantarajal.org/**********
   • http://www.alexandriaradiology.com/**********
   • http://www.booksbyhunter.com/**********
   • http://www.wxcsxy.com/**********
   • http://www.coupdepinceau.com/**********
   • http://www.erotologist.com/**********
   • http://www.jackstitt.com/**********
   • http://www.imspress.com/**********
   • http://www.digitalefoto.net/**********
   • http://www.josemarimuro.com/**********
   • http://www.eversetic.com/**********
   • http://www.curious.be/**********
   • http://www.kameo-bijux.ru/**********
   • http://www.karrad6000.ru/**********
   • http://www.kaztransformator.kz/**********
   • http://www.keywordthief.com/**********
It is saved on the local hard drive under: %WINDIR%\__dwn.exe At the time of writing this file was not online for further investigation.

 Registry The following registry key is added in order to run the process after reboot:

– [HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • im_autorn = %SYSDIR%\im_1.exe



The following registry keys are added:

– [HKCU\Software\Microsoft\IME]
   • FirstRun = dword:00000001

– [HKLM\SOFTWARE\Microsoft\DownloadManager]

 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description inserted by Andrei Gherman on Wednesday, February 1, 2006
Description updated by Andrei Gherman on Wednesday, February 1, 2006

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