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Virus:TR/Dldr.Agent.ACF.2
Date discovered:19/12/2008
Type:Trojan
Subtype:Downloader
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:48.646 Bytes
MD5 checksum:b833592a74de77b652e21cf9a6d0a9de
VDF version:7.01.01.13 - Friday, December 19, 2008
IVDF version:7.01.01.13 - Friday, December 19, 2008

 General Methods of propagation:
   • Local network
   • Messenger


Aliases:
   •  Kaspersky: Net-Worm.Win32.Kolab.ztq
   •  Bitdefender: Trojan.Generic.KD.202089
   •  GData: Trojan.Generic.KD.202089
   •  DrWeb: Trojan.AVKill.4081


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Third party control
   • Drops malicious files
   • Registry modification
   • Makes use of software vulnerability
      •  CVE-2007-1204
      •  MS07-019

 Files It copies itself to the following location:
   • %WINDIR%\ghdrive32.exe




It tries to execute the following file:

– Filename:
   • %WINDIR%\ghdrive32.exe

 Registry The following registry keys are added in order to run the processes after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Microsoft Driver Setup"="%WINDIR%\ghdrive32.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\
   Run]
   • "Microsoft Driver Setup"="%WINDIR%\ghdrive32.exe"



It creates the following entry in order to bypass the Windows XP firewall:

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile]
   • "EnableFirewall"=dword:0x00000000

 Messenger It is spreading via Messenger. The characteristics are described below:

– Windows Messenger

The URL then refers to a copy of the described malware. If the user downloads and executes this file the infection process will start again.

 Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below.


Exploit:
It makes use of the following Exploits:
– MS03-039 (Buffer Overrun in RPCSS Service)
– MS04-007 (ASN.1 Vulnerability)
– MS06-040 (Vulnerability in Server Service)

 IRC To deliver system information and to provide remote control it connects to the following IRC Server:

Server: hahahaha.ish**********.com
Port: 7196

 Process termination List of processes that are terminated:
   • VIPRE.EXE; ISSDM_EN_32.EXE; P08PROMO.EXE; K7TS_SETUP.EXE;
      AVINSTALL.EXE; WITSETUP.EXE; TrendMicro_TISPro_16.1_1063_x32.EXE;
      VBA32-PERSONAL-LATEST-ENGLISH.EXE; CCSETUP210.EXE; FSMB32.EXE;
      FSGK32.EXE; FSAV95.EXE; FSAV530WTBYB.EXE; FSAV530STBYB.EXE;
      FSAV32.EXE; FSAV.EXE; FSAA.EXE; FPROT.EXE; FP-WIN.EXE; FNRB32.EXE;
      FIH32.EXE; FCH32.EXE; FAST.EXE; FAMEH32.EXE; F-STOPW.EXE;
      F-PROT95.EXE; F-PROT.EXE; AFMAIN.EXE; SPIDERUI.EXE; SPIDERNT.EXE;
      ALERTMAN.EXE; RAVMOND.EXE; MAKEREPORT.EXE; BOXMOD.EXE; 360SAFE.EXE;
      360RPT.EXE; 360HOTFIX.EXE; 360TRAY.EXE; NSVMON.NPC; NSAVSVC.NPC;
      NPCGREENAGENT.NPC; PUSCAN.EXE; AYSERVICENT.AYE; AYAGENT.AYE;
      CMDAGENT.EXE; CPF.EXE; VSMON.EXE; ZLCLIENT.EXE; NSUTILITY.EXE;
      NSPUPDT.EXE; NAVQSCAN.EXE; NSPMAIN.EXE; NSPUPSVC.EXE; NSPSVC.EXE;
      MKSADMINCONSOLE.EXE; MKSUPDATE.EXE; MKSPC.EXE; MKSFWALL.EXE;
      MKSVIRMONSVC.EXE; MKS_SCAN.EXE; MKS_MAIL.EXE; MKSREGMON.EXE;
      KAVPFW.EXE; KASMAIN.EXE; KAV32.EXE; KPFWSVC.EXE; KISSVC.EXE;
      KWATCH.EXE; KPFW32.EXE; KAVSTART.EXE; KVSRVXP.EXE; KVOL.EXE; KVXP.KXP;
      KVMONXP.KXP; CAVASM.EXE; CMAIN.EXE; ARCABIT.CORE.LOGGINGSERVICE.EXE;
      ARCABIT.CORE.CONFIGURATOR2.EXE; TASKSCHEDULER.EXE; UPDATE.EXE;
      NETMONSV.EXE; FILEMONSV.EXE; ABREGMON.EXE.EXE; ARCACHECK.EXE;
      ARCAVIR.EXE; AVMENU.EXE; A2HIJACKFREE.EXE; A2SERVICE.EXE; A2START.EXE;
      A2SCAN.EXE; A2GUARD.EXE; VRFWSVC.EXE; HFACSVC.EXE; VRMONSVC.EXE;
      HPCSVC.EXE; HSVCMOD.EXE; VRMONNT.EXE; MKSTRAY.EXE; VBA32ADS.EXE;
      VBA32LDR.EXE; FILELOCKSETUP.EXE; TSCFCOMMANDER.EXE; TMPROXY.EXE;
      TMPFW.EXE; TMBMSRV.EXE; UFNAVI.EXE; UFSEAGNT.EXE; TISSPWIZ.EXE;
      SFCTLCOM.EXE; TNBUTIL.EXE; DEFWATCH.EXE; RTVSCAN.EXE; SBAMSVC.EXE;
      SBAMUI.EXE; SBAMTRAY.EXE; SAVADMINSERVICE.EXE; SAVSERVICE.EXE;
      SCFSERVICE.EXE; SCFMANAGER.EXE; RAVTASK.EXE; CCENTER.EXE; ULIBCFG.EXE;
      RAVLITE.EXE; PCTAV.EXEPCTAVSVC.EXEPXCONSOLE.EXEPXAGENT.EXERAV.EXE;
      PCTSAUXS.EXE; PCTSTRAY.EXE; PCTSSVC.EXE; PCTSGUI.EXE; AVGAS.EXE;
      PAVBCKPT.EXE; WEBPROXY.EXE; PAVSRV51.EXESRVLOAD.EXE; PSIMSVC.EXE;
      PSHOST.EXE; AVENGINE.EXE; PSKMSSVC.EXE; PAVPRSRV.EXE; PAVFNSVR.EXE;
      PSCTRLS.EXE; TPSRV.EXE; NOD32M2.EXE; NOD32CC.EXE; NOD32.EXE;
      NMAIN.EXE; NOD32KUI.EXE; MSASCUI.EXE; MSMPENG.EXE; MCUPDATE.EXE;
      MCSHIELD.EXE; MCVSSHLD.EXE; MCVSRTE.EXE; MCAGENT.EXE; KAVSVC.EXE;
      KAV.EXE; K7TSMNGR.EXE; K7SPMSRC.EXE; K7RTSCAN.EXE; K7PSSRVC.EXE;
      K7FWSRVC.EXE; K7EMLPXY.EXE; K7TSECURITY.EXE; K7SYSTRY.EXE;
      VIRUSUTILITIES.EXE; GUARDXSERVICE.EXE; GUARDXKICKOFF.EXE; AVKWCTL.EXE;
      AVKTUNERSERVICE.EXE; AVKSERVICE.EXE; GDFWSVC.EXE; AVKPROXY.EXE;
      GDFIRE~1.EXE; AVKTRAY.EXE; GDFIREWALLTRAY.EXE; FSAUA.EXE;
      NOD32KRN.EXE; FSMA32.EXE; FSDFWD.EXE; FSGK32ST.EXE; FSM32.EXE;
      FPWIN.EXE; FPAVSERVER.EXE; FPROTTRAY.EXE; INICIO.EXE; UMXPOL.EXE;
      UMXFWHLP.EXE; UMXAGENT.EXE; UMXCFG.EXE; PPCLTPRIV.EXE; SVCPRS32.EXE;
      ITMRTSVC.EXE; CCPROVSP.EXE; MDMCLS32.EXE; CAGLOBALLIGHT.EXE;
      CAPFUPGRADE.EXE; CAPFASEM.EXE; CAFW.EXE; CFGMNG32.EXE; CCTRAY.EXE;
      CLAMTRAY.EXE; CLAMWIN.EXE; ALSVC.EXE; ALMON.EXE; DRWEBSCD.EXE;
      SPIDERML.EXE; DRWEB32W.EXE; ACS.EXE; STRTSVC.EXE; OP_MON.EXE;
      SENSOR.EXE; QHFW332.EXE; CATEYE.EXE; ONLNSVC.EXE; EMLPROUI.EXE;
      UPSCHD.EXE; SCANMSG.EXE; SCANWSCS.EXE; EMLPROXY.EXE; ONLINENT.EXE;
      ASWCLNR.EXE; BDAGENT.EXE; VSSERV.EXE; LIVESRV.EXE; XCOMMSVR.EXE;
      UISCAN.EXE; BDSS.EXE; AVGUI.EXE; AVGUPD.EXE; AVGSCANX.EXE; AVGEMC.EXE;
      AVGUPSVC.EXE; AVGAMSVR.EXE; AVGWDSVC.EXE; ASHWEBSV.EXE; ASHMAISV.EXE;
      ASWUPDSV.EXE; ASHSERV.EXE; ASHDISP.EXE; AVCENTER.EXE; SCHED.EXE;
      AVIRARKD.EXE; AVGNT.EXE; AVGUARD.EXE; AHNSDSV.EXE; ACAIS.EXE;
      ACALS.EXE; ACAEGMGR.EXE; ACAAS.EXE; QOELOADER.EXE; APVXDWIN.EXE;
      QUHLPSVC.EXE; 123.EXE; RAVP.EXEMBAM.EXE123.COM; UNLOCKER1.8.7.EXE;
      UNIEXTRACT.EXE; SYSANALYZER_SETUP.EXE; STARTDRECK.EXE; SPF.EXE;
      REGX2.EXE; REGSHOT.EXE; REGSCANNER.EXE; REGISTRAR_LITE.EXE;
      REGCOOL.EXE; REGALYZ.EXE; PROJECTWHOISINSTALLER.EXE; PROCMON.EXE;
      CUREIT.EXE; FIXBAGLE.EXE; PGSETUP.EXE; OBJMONSETUP.EXE; NETALYZ.EXE;
      KILLBOX.EXE; INSTALLWATCHPRO25.EXE; AVENGER.EXE; IEFIX.EXE;
      HOSTSFILEREADER.EXE; FIXPATH.EXE; FILEFIND.EXE; FILEALYZ.EXE;
      EULALYZERSETUP.EXE; A2HIJACKFREESETUP.EXE; DLLCOMPARE.EXE;
      CPROCESS.EXE; CPORTS.EXE; ASVIEWER.EXE; APT.EXE; APM.EXE;
      WIRESHARK.EXE; SPYBOTSD.EXE; TEATIMER.EXE; SPYBOTSD160.EXE;
      PROCESSMONITOR.EXE; PROCDUMP.EXE; PG2.EXE; LORDPE.EXE; ICESWORD.EXE;
      REANIMATOR.EXE; ROOTKITNO.EXE; RKD.EXE; HACKMON.EXE; UNHACKME.EXE;
      ROOTKIT_DETECTIVE.EXE; AVGARKT.EXE; FSB.EXE; FSBL.EXE;
      ROOTKITREVEALER.EXE; PSKILL.EXE; TASKMON.EXE; TASKLIST.EXE;
      TASKMAN.EXE; PROCEXP.EXE; MSNFIX.EXE; HIJACKTHIS_V2.EXE;
      HIJACKTHIS.EXE; HIJACKTHIS_SFX.EXE; HJTSETUP.EXE; HJTINSTALL.EXE;
      OLLYDBG.EXE; NETSTAT.EXE; PORTMONITOR.EXE; PORTDETECTIVE.EXE;
      FPORT.EXE; APORTS.EXE; PAVARK.EXE; DARKSPY105.EXE; HELIOS.EXE;
      ROOTKITBUSTER.EXE; ROOTALYZER.EXE; BC5CA6A.EXE; SEEM.EXE;
      DELAYDELFILE.EXE; DUBATOOL_AV_KILLER.EXE; SUPERKILLER.EXE;
      KAKASETUPV6.EXE; BUSCAREG.EXE; MSNCLEANER.EXE; SRESTORE.EXE;
      BOOTSAFE.EXE; SUPERANTISPYWARE.EXE; CCLEANER.EXE;
      REGUNLOCKER.EXETSNTEVAL.EXEXP_TASKMGRENAB.EXE; CF9409.EXE; GMER.EXE;
      CATCHME.EXE; SDFIX.EXE; COMBOFIX.EXE; SRENGPS.EXE; AUTORUNS.EXE;
      TASKKILL.EXE; REGEDIT.EXE; REG.EXE; MYPHOTOKILLER.EXE;
      KILLAUTOPLUS.EXE; FOLDERCURE.EXE; REGEDIT.SCR; REGEDIT.COM; MMC.EXE;
      TCPVIEW.EXE; LISTO.EXE; GUARD.EXE; NTVDM.EXE; COMMAND.COM;
      COMBOFIX.COM; COMBOFIX.SCR; COMBOFIX.BAT; REGMON.EXE;
      OTMOVEIT.EXEMBAM-SETUP.EXE; JAJA.EXE; AVZ.EXE; MBAM.EXE;
      MBAM-SETUP.EXE; PENCLEAN.EXE; ELISTA.EXE; HJ.EXE;
      WINDOWS-KB890930-V2.2.EXE; MRTSTUB.EXE; MRT.EXE; HIJACK-THIS.EXE;
      VIRUS.EXE; SAFEBOOTKEYREPAIR.EXEOTMOVEIT3.EXEHOSTSXPERT.EXEDAFT.EXE;
      ATF-CLEANER.EXE; COMPAQ_PROPIETARIO.EXE; SRENGLDR.EXE; HOOKANLZ.EXE


 Miscellaneous Accesses internet resources:
   • http://www.mcreate.net/cgi-bin/envchk/**********;
      http://kuwago.hp.infoseek.co.jp/cgi-bin/nph/**********;
      http://www.cooleasy.com/cgi-bin/**********;
      http://www.cship.info/cgi-bin/**********;
      http://obsoletegod.com/cgi-bin/**********;
      http://www16.tok2.com/home/aquemai/cgi-bin/**********;
      http://116.0.22.245/**********;
      http://www.nippon.to/cgi-bin/**********;
      http://mobi-sys.ru/img/**********


Mutex:
It creates the following Mutex:
   • jhg28gdhrg2fcs

 File details Programming language:
The malware program was written in MS Visual C++.


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

Descripción insertada por Petre Galan el miércoles, 6 de julio de 2011
Descripción actualizada por Petre Galan el miércoles, 6 de julio de 2011

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