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Email-Worm:W32/Bagle.HR

Classification

Category:

Malware

Type:

Email-worm

Aliases:

  • Trojan-Downloader.Win32.Bagle.dr
  • Email-Worm.Win32.Bagle.dr

Summary

This type of worm is embedded in an email attachment, and spreads using the infected computer's emailing networks.

Removal

Technical Details

Email-Worm:W32/Bagle.HR differs from previous Bagle variants in that it is itself capable of functioning as a trojan-downloader, rather than depending on a separate trojan-downloader program.

In addition, the worm uses rootkit technology to disguise its presence on the computer.

Execution

Upon executing for the first time, Bagle.HR it shows the following dialog box as a decoy:

It will display the same message regardless of the file chosen.

In order to check itself for first execution, Bagle.HR checks the following registry entry:

  • HKEY_CURRENT_USER\Software\FirstRRRun FirstRR23232Run = dword:00000001

If the said registry entry is available it will no longer show the dialog box.

Bagle.HR drops copies of itself in the following path and filename:

  • %Local AppData folder%\hidires\flec003.exe
  • %Local AppData folder%\hidires\hidr.exe

It also drops the following rootkit driver to hide its malicious activities:

  • %Local AppData folder%\hidires\m_hook.sys

To enable automatic execution upon boot, it adds the following auto start entry but waits for 300000 ms before adding it:

  • HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run drvsyskit = %Local AppData folder%\hidires\hidr.exe

It also adds its rootkit driver component as a service by adding the following changes to the registry:

  • HKLM\SYSTEM\CurrentControlSet\Services\m_hook Type = dword:00000001 Start = dword:00000004 DisplayName = "Empty" ImagePath = %Local Application Data Folder%\hidires\m_hook.sys

Bagle.HR deletes the following key in order to prevent the user from booting into safe mode:

  • HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot

Activity

Bagle.HR downloads other malware from the following links:

  • https://5050clothing.com/mu[REMOVED].php
  • https://axelero.hu/mu[REMOVED].php
  • https://calamarco.com/mu[REMOVED].php
  • https://charlesspaans.com/mu[REMOVED].php
  • https://chatsk.wz.cz/mu[REMOVED].php
  • https://checkalertusa.com/mu[REMOVED].php
  • https://cibernegocios.com.ar/mu[REMOVED].php
  • https://cof666.shockonline.net/mu[REMOVED].php
  • https://comaxtechnologies.net/mu[REMOVED].php
  • https://concellodesandias.com/mu[REMOVED].php
  • https://dev.jintek.com/mu[REMOVED].php
  • https://dogoodesign.ch/mu[REMOVED].php
  • https://donchef.com/mu[REMOVED].php
  • https://erich-kaestner-schule-donaueschingen.de/mu[REMOVED].php
  • https://foxvcoin.com/mu[REMOVED].php
  • https://grupdogus.de/mu[REMOVED].php
  • https://hotchillishop.de/mu[REMOVED].php
  • https://ilikesimple.com/mu[REMOVED].php
  • https://innovation.ojom.net/mu[REMOVED].php
  • https://kisalfold.com/mu[REMOVED].php
  • https://knickimbit.de/mu[REMOVED].php
  • https://kremz.ru/mu[REMOVED].php
  • https://massgroup.de/mu[REMOVED].php
  • https://poliklinika-vajnorska.sk/mu[REMOVED].php
  • https://svatba.viskot.cz/mu[REMOVED].php
  • https://systemforex.de/mu[REMOVED].php
  • https://uwua132.org/mu[REMOVED].php
  • https://v-v-kopretiny.ic.cz/mu[REMOVED].php
  • https://vanvakfi.com/mu[REMOVED].php
  • https://vega-sps.com/mu[REMOVED].php
  • https://vidus.ru/mu[REMOVED].php
  • https://viralstrategies.com/mu[REMOVED].php
  • https://Vivamodelhobby.com/mu[REMOVED].php
  • https://vkinfotech.com/mu[REMOVED].php
  • https://vproinc.com/mu[REMOVED].php
  • https://vytukas.com/mu[REMOVED].php
  • https://waisenhaus-kenya.ch/mu[REMOVED].php
  • https://watsrisuphan.org/mu[REMOVED].php
  • https://wbecanada.com/mu[REMOVED].php
  • https://web-comp.hu/mu[REMOVED].php
  • https://webfull.com/mu[REMOVED].php
  • https://welvo.com/mu[REMOVED].php
  • https://wvpilots.org/mu[REMOVED].php
  • https://www.ag.ohio-state.edu/mu[REMOVED].php
  • https://www.ag.ohio-state.edu/mu[REMOVED].php
  • https://www.chapisteriadaniel.com/mu[REMOVED].php
  • https://www.chittychat.com/mu[REMOVED].php
  • https://www.cort.ru/mu[REMOVED].php
  • https://www.crfj.com/mu[REMOVED].php
  • https://www.kersten.de/mu[REMOVED].php
  • https://www.kljbwadersloh.de/mu[REMOVED].php
  • https://www.voov.de/mu[REMOVED].php
  • https://www.walsch.de/mu[REMOVED].php
  • https://www.wchat.cz/mu[REMOVED].php
  • https://www.wg-aufbau-bautzen.de/mu[REMOVED].php
  • https://www.wzhuate.com/mu[REMOVED].php
  • https://xotravel.ru/mu[REMOVED].php
  • https://yeniguntugla.com/mu[REMOVED].php
  • https://zebrachina.net/mu[REMOVED].php
  • https://zsnabreznaknm.sk/mu[REMOVED].php

The rootkit driver terminates and deletes the following files that are related to antivirus software:

  • _AVP32.EXE
  • _AVPCC.EXE
  • _AVPM.EXE
  • a2guard.exe
  • aavshield.exe
  • AckWin32.exe
  • ADVCHK.EXE
  • AhnSD.exe
  • airdefense.exe
  • ALERTSVC.EXE
  • ALMon.exe
  • ALOGSERV.EXE
  • ALsvc.exe
  • amon.exe
  • Anti-Trojan.exe
  • AntiVirScheduler
  • AntiVirService
  • ANTS.EXE
  • APVXDWIN.EXE
  • Armor2net.exe
  • ashAvast.exe
  • ashDisp.exe
  • ashEnhcd.exe
  • ashMaiSv.exe
  • ashPopWz.exe
  • ashServ.exe
  • ashSimpl.exe
  • ashSkPck.exe
  • ashWebSv.exe
  • aswUpdSv.exe
  • ATCON.EXE
  • ATUPDATER.EXE
  • ATWATCH.EXE
  • AUPDATE.EXE
  • AUTODOWN.EXE
  • AUTOTRACE.EXE
  • AUTOUPDATE.EXE
  • avciman.exe
  • Avconsol.exe
  • AVENGINE.EXE
  • avgamsvr.exe
  • avgcc.exe
  • AVGCC32.EXE
  • AVGCTRL.EXE
  • avgemc.exe
  • avgfwsrv.exe
  • AVGNT.EXE
  • avgntdd
  • avgntmgr
  • AVGSERV.EXE
  • AVGUARD.EXE
  • avgupsvc.exe
  • avinitnt.exe
  • AvkServ.exe
  • AVKService.exe
  • AVKWCtl.exe
  • AVP.EXE
  • AVP32.EXE
  • avpcc.exe
  • avpm.exe
  • AVPUPD.EXE
  • AVSCHED32.EXE
  • avsynmgr.exe
  • AVWUPD32.EXE
  • AVWUPSRV.EXE
  • AVXMONITOR9X.EXE
  • AVXMONITORNT.EXE
  • AVXQUAR.EXE
  • BackWeb-4476822.exe
  • bdmcon.exe
  • bdnews.exe
  • bdoesrv.exe
  • bdss.exe
  • bdsubmit.exe
  • bdswitch.exe
  • blackd.exe
  • blackice.exe
  • cafix.exe
  • ccApp.exe
  • ccEvtMgr.exe
  • ccProxy.exe
  • ccSetMgr.exe
  • CFIAUDIT.EXE
  • ClamTray.exe
  • ClamWin.exe
  • Claw95.exe
  • Claw95cf.exe
  • cleaner.exe
  • cleaner3.exe
  • CliSvc.exe
  • CMGrdian.exe
  • cpd.exe
  • DefWatch.exe
  • DOORS.EXE
  • DrVirus.exe
  • drwadins.exe
  • drweb32w.exe
  • drwebscd.exe
  • DRWEBUPW.EXE
  • ESCANH95.EXE
  • ESCANHNT.EXE
  • ewidoctrl.exe
  • EzAntivirusRegistrationCheck.exe
  • F-AGNT95.EXE
  • F-PROT95.EXE
  • F-Sched.exe
  • F-StopW.EXE
  • FAMEH32.EXE
  • FAST.EXE
  • FCH32.EXE
  • FireSvc.exe
  • FireTray.exe
  • FIREWALL.EXE
  • fpavupdm.exe
  • freshclam.exe
  • FRW.EXE
  • fsav32.exe
  • fsavgui.exe
  • fsbwsys.exe
  • fsdfwd.exe
  • FSGK32.EXE
  • fsgk32st.exe
  • fsguiexe.exe
  • FSM32.EXE
  • FSMA32.EXE
  • FSMB32.EXE
  • fspex.exe
  • fssm32.exe
  • gcasDtServ.exe
  • gcasServ.exe
  • GIANTAntiSpywareMain.exe
  • GIANTAntiSpywareUpdater.exe
  • GUARD.EXE
  • GUARDGUI.EXE
  • GuardNT.exe
  • HRegMon.exe
  • Hrres.exe
  • HSockPE.exe
  • HUpdate.EXE
  • iamapp.exe
  • iamserv.exe
  • ICLOAD95.EXE
  • ICLOADNT.EXE
  • ICMON.EXE
  • ICSSUPPNT.EXE
  • ICSUPP95.EXE
  • ICSUPPNT.EXE
  • IFACE.EXE
  • INETUPD.EXE
  • InocIT.exe
  • InoRpc.exe
  • InoRT.exe
  • InoTask.exe
  • InoUpTNG.exe
  • IOMON98.EXE
  • isafe.exe
  • ISATRAY.EXE
  • ISRV95.EXE
  • ISSVC.exe
  • JEDI.EXE
  • KAV.exe
  • kavmm.exe
  • KAVPF.exe
  • KavPFW.exe
  • KAVStart.exe
  • KAVSvc.exe
  • KAVSvcUI.EXE
  • KMailMon.EXE
  • KPfwSvc.EXE
  • KWatch.EXE
  • livesrv.exe
  • LOCKDOWN2000.EXE
  • LogWatNT.exe
  • lpfw.exe
  • LUALL.EXE
  • LUCOMSERVER.EXE
  • Luupdate.exe
  • MCAGENT.EXE
  • mcmnhdlr.exe
  • mcregwiz.exe
  • Mcshield.exe
  • MCUPDATE.EXE
  • mcvsshld.exe
  • MINILOG.EXE
  • MONITOR.EXE
  • MonSysNT.exe
  • MOOLIVE.EXE
  • MpEng.exe
  • mpssvc.exe
  • MSMPSVC.exe
  • myAgtSvc.exe
  • myagttry.exe
  • navapsvc.exe
  • NAVAPW32.EXE
  • NavLu32.exe
  • NAVW32.EXE
  • NDD32.EXE
  • NeoWatchLog.exe
  • NeoWatchTray.exe
  • NISSERV
  • NISUM.EXE
  • NMAIN.EXE
  • nod32.exe
  • nod32krn.exe
  • nod32kui.exe
  • NORMIST.EXE
  • notstart.exe
  • npavtray.exe
  • NPFMNTOR.EXE
  • npfmsg.exe
  • NPROTECT.EXE
  • NSCHED32.EXE
  • NSMdtr.exe
  • NssServ.exe
  • NssTray.exe
  • ntrtscan.exe
  • NTXconfig.exe
  • NUPGRADE.EXE
  • NVC95.EXE
  • Nvcod.exe
  • Nvcte.exe
  • Nvcut.exe
  • NWService.exe
  • OfcPfwSvc.exe
  • OUTPOST.EXE
  • PAV.EXE
  • PavFires.exe
  • PavFnSvr.exe
  • Pavkre.exe
  • PavProt.exe
  • pavProxy.exe
  • pavprsrv.exe
  • pavsrv51.exe
  • PAVSS.EXE
  • pccguide.exe
  • PCCIOMON.EXE
  • pccntmon.exe
  • PCCPFW.exe
  • PcCtlCom.exe
  • PCTAV.exe
  • PERSFW.EXE
  • pertsk.exe
  • PERVAC.EXE
  • PNMSRV.EXE
  • POP3TRAP.EXE
  • POPROXY.EXE
  • prevsrv.exe
  • PsImSvc.exe
  • QHM32.EXE
  • QHONLINE.EXE
  • QHONSVC.EXE
  • QHPF.EXE
  • qhwscsvc.exe
  • RavMon.exe
  • RavTimer.exe
  • Realmon.exe
  • REALMON95.EXE
  • Rescue.exe
  • rfwmain.exe
  • Rtvscan.exe
  • RTVSCN95.EXE
  • RuLaunch.exe
  • SAVAdminService.exe
  • SAVMain.exe
  • savprogress.exe
  • SAVScan.exe
  • SCAN32.EXE
  • ScanningProcess.exe
  • sched.exe
  • sdhelp.exe
  • SERVIC~1.EXE
  • SHSTAT.EXE
  • SiteCli.exe
  • smc.exe
  • SNDSrvc.exe
  • SPBBCSvc.exe
  • SPHINX.EXE
  • spiderml.exe
  • spidernt.exe
  • Spiderui.exe
  • SpybotSD.exe
  • SPYXX.EXE
  • SS3EDIT.EXE
  • stopsignav.exe
  • swAgent.exe
  • swdoctor.exe
  • SWNETSUP.EXE
  • symlcsvc.exe
  • SymProxySvc.exe
  • SymSPort.exe
  • SymWSC.exe
  • SYNMGR.EXE
  • TAUMON.EXE
  • TBMon.exe
  • TC.EXE
  • tca.exe
  • TCM.EXE
  • TDS-3.EXE
  • TeaTimer.exe
  • TFAK.EXE
  • THAV.EXE
  • THSM.EXE
  • Tmas.exe
  • tmlisten.exe
  • Tmntsrv.exe
  • TmPfw.exe
  • tmproxy.exe
  • TNBUtil.exe
  • TRJSCAN.EXE
  • Up2Date.exe
  • UPDATE.EXE
  • UpdaterUI.exe
  • upgrepl.exe
  • Vba32ECM.exe
  • Vba32ifs.exe
  • vba32ldr.exe
  • Vba32PP3.exe
  • VBSNTW.exe
  • vchk.exe
  • vcrmon.exe
  • VetTray.exe
  • VirusKeeper.exe
  • VPTRAY.EXE
  • vrfwsvc.exe
  • VRMONNT.EXE
  • vrmonsvc.exe
  • vrrw32.exe
  • VSECOMR.EXE
  • Vshwin32.exe
  • vsmon.exe
  • vsserv.exe
  • VsStat.exe
  • WATCHDOG.EXE
  • WebProxy.exe
  • Webscanx.exe
  • WEBTRAP.EXE
  • WGFE95.EXE
  • Winaw32.exe
  • winroute.exe
  • winss.exe
  • winssnotify.exe
  • WRADMIN.EXE
  • WRCTRL.EXE
  • xcommsvr.exe
  • zatutor.exe
  • ZAUINST.EXE
  • zlclient.exe
  • zonealarm.exe

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