Worm/Mytob.KS - Worm

See also

Summary

Full description

Statistics

Virus:	Worm/Mytob.KS
Date discovered:	16/10/2005
Type:	Worm
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Medium
Damage Potential:	Medium
Static file:	Yes
File size:	27.480 Bytes
MD5 checksum:	F8E21525C6848F45E4AB77AEE05F0A28
VDF version:	6.32.00.88

General Method of propagation:
   • Email

Aliases:
   • Symantec: W32.Mytob.KU@mm
   • Kaspersky: Email-Worm.Win32.Doombot.b
   • TrendMicro: WORM_MYTOB.LP
   • Bitdefender: Win32.Doombot.B@mm

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

Side effects:
   • Blocks access to security websites
   • Uses its own Email engine
   • Lowers security settings
   • Registry modification

Files It copies itself to the following location:
   • %SYSDIR%\d.exe

It copies itself within an archive to the following location:
   • %TEMPDIR%\tmp%hex number%.tmp

– A file that is for temporary use and it might be deleted afterwards:
   • %TEMPDIR%\tmp%hex number%.tmp

Registry The following registry keys are continuously in an infinite loop added in order to run the processes after reboot.

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "SYSTEM"="d.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices]
   • "SYSTEM"="d.exe"

The following registry key is changed:

Deactivate Windows XP Firewall:
– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess]
   Old value:
   • "Start"=%user defined settings%
   New value:
   • "Start"=dword:00000004

Email It contains an integrated SMTP engine in order to send emails. A direct connection with the destination server will be established. The characteristics are described in the following:

From:
The sender of the email is one of the following:
   • support@%recipient's domain%
   • administrator@%recipient's domain%
   • mail@%recipient's domain%
   • service@%recipient's domain%
   • admin@%recipient's domain%
   • info@%recipient's domain%
   • register@%recipient's domain%
   • webmaster@%recipient's domain%

To:
– Email addresses found in specific files on the system.
– Email addresses gathered from WAB (Windows Address Book)
– Generated addresses

Subject:
One of the following:
   • Notice of account limitation
   • Email Account Suspension
   • Security measures
   • Members Support
   • Important Notification
   • Warning Message: Your services near to be closed.
   • Your Account is Suspended For Security Reasons
   • *DETECTED* Online User Violation
   • Your Account is Suspended
   • Your new account password is approved
   • You have successfully updated your password
   • Your password has been successfully updated
   • Your password has been updated

The body of the email is one of the following:

   • Dear user %username from receiver's email address%,
     You have successfully updated the password of your %recipient's domain% account.
     If you did not authorize this change or if you need assistance with your account, please contact %recipient's domain% customer service at: %sender's email address%
     Thank you for using %recipient's domain%!
     The %recipient's domain% Support Team
     +++ Attachment: No Virus (Clean)
     +++ %recipient's domain% Antivirus - www.%recipient's domain%

   • Dear user %username from receiver's email address%,
     It has come to our attention that your %recipient's domain% User Profile (x) records are out of date. For further details see the attached document.
     Thank you for using %recipient's domain%!
     The %recipient's domain% Support Team
     +++ Attachment: No Virus (Clean)
     +++ %recipient's domain% Antivirus - www.%recipient's domain%

   • Dear %username from receiver's email address% Member,
     We have temporarily suspended your email account %recipient's e-mail address%.
     This might be due to either of the following reasons:
     1. A recent change in your personal information (i.e. change of address).
     2. Submiting invalid information during the initial sign up process.
     3. An innability to accurately verify your selected option of subscription due to an internal error within our processors.
     See the details to reactivate your %recipient's domain% account.
     Sincerely,The %recipient's domain% Support Team
     +++ Attachment: No Virus (Clean)
     +++ %recipient's domain% Antivirus - www.%recipient's domain%

   • Dear %username from receiver's email address% Member,
     Your e-mail account was used to send a huge amount of unsolicited spam messages during the recent week. If you could please take 5-10 minutes out of your online experience and confirm the attached document so you will not run into any future problems with the online service.
     If you choose to ignore our request, you leave us no choice but to cancel your membership.
     Virtually yours,
     The %recipient's domain% Support Team
     +++ Attachment: No Virus found
     +++ %recipient's domain% Antivirus - www.%recipient's domain%

Attachment:
The filename of the attachment is one of the following:
   • account-report.zip
   • readme.zip
   • document.zip
   • account-info.zip
   • email-details.zip
   • account-details.zip
   • important-details.zip
   • accepted-password.zip
   • account-password.zip
   • approved-password.zip
   • password.zip
   • new-password.zip
   • email-password.zip
   • updated-password.zip

The attachment is a copy of the malware itself.

The email may look like one of the following:

Mailing Search addresses:
It searches the following files for email addresses:
   • .wab; .html; .adb; .tbb; .dbx; .asp; .php; .xml; .cgi; .jsp; .sht;
      .htm

Address generation for TO field:
To generate addresses it uses the following strings:
   • sandra; adam; frank; linda; julie; jimmy; jerry; helen; debby;
      claudia; brenda; anna; sales; brent; paul; ted; fred; jack; bill;
      stan; smith; steve; matt; dave; dan; joe; jane; bob; robert; peter;
      tom; ray; mary; serg; brian; jim; maria; leo; jose; andrew; sam;
      george; david; kevin; mike; james; michael; alex; josh; john

It combines the result with domains that were found in files, which were previously searched for addresses.

Avoid addresses:
It does not send emails to addresses containing one of the following strings:
   • accoun; certific; listserv; ntivi; support; icrosoft; admin; page;
      the.bat; gold-certs; feste; submit; not; help; service; privacy;
      somebody; soft; contact; site; rating; bugs; you; your; someone;
      anyone; nothing; nobody; noone; webmaster; postmaster; samples; info;
      root; mozilla; utgers.ed; tanford.e; pgp; acketst; secur; isc.o;
      isi.e; ripe.; arin.; sendmail; rfc-ed; ietf; iana; usenet; fido;
      linux; kernel; google; ibm.com; fsf.; gnu; mit.e; bsd; math; unix;
      berkeley; foo.; .mil; gov.; .gov; ruslis; nodomai; mydomai; example;
      inpris; borlan; sopho; panda; hotmail; msn.; icrosof; syma; avp; .edu;
      abuse; www; fcnz; spm

Prepend MX strings:
In order to get the IP address of the mail server it has the ability to prepend the following strings to the domain name:
   • gate.
   • ns.
   • relay.
   • mail1.
   • mxs.
   • mx1.
   • smtp.
   • mail.
   • mx.

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

Server: rax.**********hax.info
Port: 43287
Channel: #r0x
Nickname: [r0x]-%random character string%
Password: elite

– This malware has the ability to collect and send information such as:
    • Free memory
    • Malware uptime
    • Size of memory
    • Information about the Windows operating system

– Furthermore it has the ability to perform actions such as:
    • Download file
    • Execute file
    • Send emails
    • Terminate malware

Hosts The host file is modified as explained:

– In this case already existing entries remain unmodified.

– Access to the following domains is effectively blocked:
   • www.symantec.com; securityresponse.symantec.com; symantec.com;
      www.sophos.com; sophos.com; www.mcafee.com; mcafee.com;
      liveupdate.symantecliveupdate.com; www.viruslist.com; viruslist.com;
      viruslist.com; f-secure.com; www.f-secure.com; kaspersky.com;
      kaspersky-labs.com; www.avp.com; www.kaspersky.com; avp.com;
      www.networkassociates.com; networkassociates.com; www.ca.com; ca.com;
      mast.mcafee.com; my-etrust.com; www.my-etrust.com;
      download.mcafee.com; dispatch.mcafee.com; secure.nai.com; nai.com;
      www.nai.com; update.symantec.com; updates.symantec.com; us.mcafee.com;
      liveupdate.symantec.com; customer.symantec.com; rads.mcafee.com;
      trendmicro.com; pandasoftware.com; www.pandasoftware.com;
      www.trendmicro.com; www.grisoft.com; www.microsoft.com; microsoft.com;
      www.virustotal.com; virustotal.com; www.amazon.com; www.amazon.co.uk;
      www.amazon.ca; www.amazon.fr; www.paypal.com; paypal.com;
      moneybookers.com; www.moneybookers.com; www.ebay.com; ebay.com

The modified host file will look like this:

Process termination List of processes that are terminated:
   • _AVP32.EXE; _AVPCC.EXE; _AVPM.EXE; ACKWIN32.EXE; ADAWARE.EXE;
      ADVXDWIN.EXE; AGENTSVR.EXE; AGENTW.EXE; ALERTSVC.EXE; ALEVIR.EXE;
      ALOGSERV.EXE; AMON9X.EXE; ANTI-TROJAN.EXE; ANTIVIRUS.EXE; ANTS.EXE;
      APIMONITOR.EXE; APLICA32.EXE; APVXDWIN.EXE; ARR.EXE; ATCON.EXE;
      ATGUARD.EXE; ATRO55EN.EXE; ATUPDATER.EXE; ATWATCH.EXE; AU.EXE;
      AUPDATE.EXE; AUTO-PROTECT.NAV80TRY.EXE; AUTODOWN.EXE; AUTOTRACE.EXE;
      AUTOUPDATE.EXE; AVCONSOL.EXE; AVE32.EXE; AVGCC32.EXE; AVGCTRL.EXE;
      AVGNT.EXE; AVGSERV.EXE; AVGSERV9.EXE; AVGUARD.EXE; AVGW.EXE;
      AVKPOP.EXE; AVKSERV.EXE; AVKSERVICE.EXE; AVKWCTl9.EXE; AVLTMAIN.EXE;
      AVNT.EXE; AVP.EXE; AVP32.EXE; AVPCC.EXE; AVPDOS32.EXE; AVPM.EXE;
      AVPTC32.EXE; AVPUPD.EXE; AVSCHED32.EXE; AVSYNMGR.EXE; AVWINNT.EXE;
      AVWUPD.EXE; AVWUPD32.EXE; AVWUPSRV.EXE; AVXMONITOR9X.EXE;
      AVXMONITORNT.EXE; AVXQUAR.EXE; BACKWEB.EXE; BARGAINS.EXE;
      BD_PROFESSIONAL.EXE; BEAGLE.EXE; BELT.EXE; BIDEF.EXE; BIDSERVER.EXE;
      BIPCP.EXE; BIPCPEVALSETUP.EXE; BISP.EXE; BLACKD.EXE; BLACKICE.EXE;
      BLSS.EXE; BOOTCONF.EXE; BOOTWARN.EXE; BORG2.EXE; BPC.EXE; BRASIL.EXE;
      BS120.EXE; BUNDLE.EXE; BVT.EXE; CCAPP.EXE; CCEVTMGR.EXE; CCPXYSVC.EXE;
      CDP.EXE; CFD.EXE; CFGWIZ.EXE; CFIADMIN.EXE; CFIAUDIT.EXE; CFINET.EXE;
      CFINET32.EXE; CLAW95CF.EXE; CLEAN.EXE; CLEANER.EXE; CLEANER3.EXE;
      CLEANPC.EXE; CLICK.EXE; CMD.EXE; CMD32.EXE; CMESYS.EXE; CMGRDIAN.EXE;
      CMON016.EXE; CONNECTIONMONITOR.EXE; CPD.EXE; CPF9X206.EXE;
      CPFNT206.EXE; CTRL.EXE; CV.EXE; CWNB181.EXE; CWNTDWMO.EXE;
      DATEMANAGER.EXE; DCOMX.EXE; DEFALERT.EXE; DEFSCANGUI.EXE;
      DEFWATCH.EXE; DEPUTY.EXE; DIVX.EXE; DLLCACHE.EXE; DLLREG.EXE;
      DOORS.EXE; DPF.EXE; DPFSETUP.EXE; DPPS2.EXE; DRWATSON.EXE;
      DRWEB32.EXE; DRWEBUPW.EXE; DSSAGENT.EXE; DVP95.EXE; DVP95_0.EXE;
      ECENGINE.EXE; EFPEADM.EXE; EMSW.EXE; ENT.EXE; ESAFE.EXE; ESCANHNT.EXE;
      ESCANV95.EXE; ESPWATCH.EXE; ETHEREAL.EXE; ETRUSTCIPE.EXE; EVPN.EXE;
      EXANTIVIRUS-CNET.EXE; EXE.AVXW.EXE; EXPERT.EXE; EXPLORE.EXE;
      F-PROT.EXE; F-PROT95.EXE; F-STOPW.EXE; FAMEH32.EXE; FAST.EXE;
      FCH32.EXE; FIH32.EXE; FINDVIRU.EXE; FIREWALL.EXE; FNRB32.EXE;
      FP-WIN.EXE; FP-WIN_TRIAL.EXE; FPROT.EXE; FRW.EXE; FSAA.EXE; FSAV.EXE;
      FSAV32.EXE; FSAV530STBYB.EXE; FSAV530WTBYB.EXE; FSAV95.EXE;
      FSGK32.EXE; FSM32.EXE; FSMA32.EXE; FSMB32.EXE; GATOR.EXE; GBMENU.EXE;
      GBPOLL.EXE; GENERICS.EXE; GMT.EXE; GUARD.EXE; GUARDDOG.EXE;
      HACKTRACERSETUP.EXE; HBINST.EXE; HBSRV.EXE; HOTACTIO.EXE;
      HOTPATCH.EXE; HTLOG.EXE; HTPATCH.EXE; HWPE.EXE; HXDL.EXE; HXIUL.EXE;
      IAMAPP.EXE; IAMSERV.EXE; IAMSTATS.EXE; IBMASN.EXE; IBMAVSP.EXE;
      ICLOADNT.EXE; ICMON.EXE; ICSUPP95.EXE; ICSUPPNT.EXE; IDLE.EXE;
      IEDLL.EXE; IEDRIVER.EXE; IEXPLORER.EXE; IFACE.EXE; IFW2000.EXE;
      INETLNFO.EXE; INFUS.EXE; INFWIN.EXE; INIT.EXE; INTDEL.EXE; INTREN.EXE;
      IOMON98.EXE; ISTSVC.EXE; JAMMER.EXE; JDBGMRG.EXE; JEDI.EXE;
      KAVLITE40ENG.EXE; KAVPERS40ENG.EXE; KAVPF.EXE; KAZZA.EXE;
      KEENVALUE.EXE; KERIO-PF-213-EN-WIN.EXE; KERIO-WRL-421-EN-WIN.EXE;
      KERIO-WRP-421-EN-WIN.EXE; KERNEL32.EXE; KILLPROCESSSETUP161.EXE;
      LAUNCHER.EXE; LDNETMON.EXE; LDPRO.EXE; LDPROMENU.EXE; LDSCAN.EXE;
      LNETINFO.EXE; LOADER.EXE; LOCALNET.EXE; LOCKDOWN.EXE;
      LOCKDOWN2000.EXE; LOOKOUT.EXE; LORDPE.EXE; LSETUP.EXE; LUALL.EXE;
      LUAU.EXE; LUCOMSERVER.EXE; LUINIT.EXE; LUSPT.EXE; MAPISVC32.EXE;
      MCAGENT.EXE; MCMNHDLR.EXE; MCSHIELD.EXE; MCTOOL.EXE; MCUPDATE.EXE;
      MCVSRTE.EXE; MCVSSHLD.EXE; MD.EXE; MFIN32.EXE; MFW2EN.EXE;
      MFWENG3.02D30.EXE; MGAVRTCL.EXE; MGAVRTE.EXE; MGHTML.EXE; MGUI.EXE;
      MINILOG.EXE; MMOD.EXE; MONITOR.EXE; MOOLIVE.EXE; MOSTAT.EXE;
      MPFAGENT.EXE; MPFSERVICE.EXE; MPFTRAY.EXE; MRFLUX.EXE; MSAPP.EXE;
      MSBB.EXE; MSBLAST.EXE; MSCACHE.EXE; MSCCN32.EXE; MSCMAN.EXE;
      MSCONFIG.EXE; MSDM.EXE; MSDOS.EXE; MSIEXEC16.EXE; MSINFO32.EXE;
      MSLAUGH.EXE; MSMGT.EXE; MSMSGRI32.EXE; MSSMMC32.EXE; MSSYS.EXE;
      MSVXD.EXE; MU0311AD.EXE; MWATCH.EXE; N32SCANW.EXE; NAV.EXE;
      NAVAP.NAVAPSVC.EXE; NAVAPSVC.EXE; NAVAPW32.EXE; NAVDX.EXE;
      NAVLU32.EXE; NAVNT.EXE; NAVSTUB.EXE; NAVW32.EXE; NAVWNT.EXE;
      NC2000.EXE; NCINST4.EXE; NDD32.EXE; NEC.EXE; NEOMONITOR.EXE;
      NEOWATCHLOG.EXE; NETARMOR.EXE; NETD32.EXE; NETINFO.EXE; NETMON.EXE;
      NETSCANPRO.EXE; NETSPYHUNTER-1.2.EXE; NETSTAT.EXE; NETUTILS.EXE;
      NISSERV.EXE; NISUM.EXE; NMAIN.EXE; NOD32.EXE; NORMIST.EXE;
      NORTON_INTERNET_SECU_3.0_407.EXE; NOTSTART.EXE;
      NPF40_TW_98_NT_ME_2K.EXE; NPFMESSENGER.EXE; NPROTECT.EXE;
      NPSCHECK.EXE; NPSSVC.EXE; NSCHED32.EXE; NSSYS32.EXE; NSTASK32.EXE;
      NSUPDATE.EXE; NT.EXE; NTRTSCAN.EXE; NTVDM.EXE; NTXconfig.EXE; NUI.EXE;
      NUPGRADE.EXE; NVARCH16.EXE; NVC95.EXE; NVSVC32.EXE; NWINST4.EXE;
      NWSERVICE.EXE; NWTOOL16.EXE; OLLYDBG.EXE; ONSRVR.EXE; OPTIMIZE.EXE;
      OSTRONET.EXE; OTFIX.EXE; OUTPOST.EXE; OUTPOSTINSTALL.EXE;
      OUTPOSTPROINSTALL.EXE; PADMIN.EXE; PANIXK.EXE; PATCH.EXE; PAVCL.EXE;
      PAVPROXY.EXE; PAVSCHED.EXE; PAVW.EXE; PCFWALLICON.EXE;
      PCIP10117_0.EXE; PCSCAN.EXE; PDSETUP.EXE; PERISCOPE.EXE; PERSFW.EXE;
      PERSWF.EXE; PF2.EXE; PFWADMIN.EXE; PGMONITR.EXE; PINGSCAN.EXE;
      PLATIN.EXE; POP3TRAP.EXE; POPROXY.EXE; POPSCAN.EXE; PORTDETECTIVE.EXE;
      PORTMONITOR.EXE; POWERSCAN.EXE; PPINUPDT.EXE; PPTBC.EXE; PPVSTOP.EXE;
      PRIZESURFER.EXE; PRMT.EXE; PRMVR.EXE; PROCDUMP.EXE;
      PROCESSMONITOR.EXE; PROCEXPLORERV1.0.EXE; PROGRAMAUDITOR.EXE;
      PROPORT.EXE; PROTECTX.EXE; PSPF.EXE; PURGE.EXE; QCONSOLE.EXE;
      QSERVER.EXE; RAPAPP.EXE; RAV7.EXE; RAV7WIN.EXE; RAV8WIN32ENG.EXE;
      RAY.EXE; RB32.EXE; RCSYNC.EXE; REALMON.EXE; REGED.EXE; REGEDIT.EXE;
      REGEDT32.EXE; RESCUE.EXE; RESCUE32.EXE; RRGUARD.EXE; RSHELL.EXE;
      RTVSCAN.EXE; RTVSCN95.EXE; RULAUNCH.EXE; RUN32DLL.EXE; RUNDLL.EXE;
      RUNDLL16.EXE; RUXDLL32.EXE; SAFEWEB.EXE; SAHAGENT.EXE; SAVE.EXE;
      SAVENOW.EXE; SBSERV.EXE; SC.EXE; SCAM32.EXE; SCAN32.EXE; SCAN95.EXE;
      SCANPM.EXE; SCRSCAN.EXE; SETUP_FLOWPROTECTOR_US.EXE;
      SETUPVAMEEVAL.EXE; SFC.EXE; SGSSFW32.EXE; SH.EXE; SHELLSPYINSTALL.EXE;
      SHN.EXE; SHOWBEHIND.EXE; SMC.EXE; SMS.EXE; SMSS32.EXE; SOAP.EXE;
      SOFI.EXE; SPERM.EXE; SPF.EXE; SPHINX.EXE; SPOLER.EXE; SPOOLCV.EXE;
      SPOOLSV32.EXE; SPYXX.EXE; SREXE.EXE; SRNG.EXE; SS3EDIT.EXE;
      SSG_4104.EXE; SSGRATE.EXE; ST2.EXE; START.EXE; STCLOADER.EXE;
      SUPFTRL.EXE; SUPPORT.EXE; SUPPORTER5.EXE; SVC.EXE; SVCHOSTC.EXE;
      SVCHOSTS.EXE; SVSHOST.EXE; SWEEP95.EXE;
      SWEEPNET.SWEEPSRV.SYS.SWNETSUP.EXE; SYMPROXYSVC.EXE; SYMTRAY.EXE;
      SYSEDIT.EXE; SYSTEM.EXE; SYSTEM32.EXE; SYSUPD.EXE; TASKMG.EXE;
      TASKMGR.EXE; TASKMO.EXE; TASKMON.EXE; TAUMON.EXE; TBSCAN.EXE; TC.EXE;
      TCA.EXE; TCM.EXE; TDS-3.EXE; TDS2-NT.EXE; TEEKIDS.EXE; TFAK.EXE;
      TFAK5.EXE; TGBOB.EXE; TITANIN.EXE; TITANINXP.EXE; TRACERT.EXE;
      TRICKLER.EXE; TRJSCAN.EXE; TRJSETUP.EXE; TROJANTRAP3.EXE; TSADBOT.EXE;
      TVMD.EXE; TVTMD.EXE; UNDOBOOT.EXE; UPDAT.EXE; UPDATE.EXE; UPGRAD.EXE;
      UTPOST.EXE; VBCMSERV.EXE; VBCONS.EXE; VBUST.EXE; VBWIN9X.EXE;
      VBWINNTW.EXE; VCSETUP.EXE; VET32.EXE; VET95.EXE; VETTRAY.EXE;
      VFSETUP.EXE; VIR-HELP.EXE; VIRUSMDPERSONALFIREWALL.EXE; VNLAN300.EXE;
      VNPC3000.EXE; VPC32.EXE; VPC42.EXE; VPFW30S.EXE; VPTRAY.EXE;
      VSCAN40.EXE; VSCENU6.02D30.EXE; VSCHED.EXE; VSECOMR.EXE; VSHWIN32.EXE;
      VSISETUP.EXE; VSMAIN.EXE; VSMON.EXE; VSSTAT.EXE; VSWIN9XE.EXE;
      VSWINNTSE.EXE; VSWINPERSE.EXE; W32DSM89.EXE; W9X.EXE; WATCHDOG.EXE;
      WEBDAV.EXE; WEBSCANX.EXE; WEBTRAP.EXE; WFINDV32.EXE;
      WHOSWATCHINGME.EXE; WIMMUN32.EXE; WIN-BUGSFIX.EXE; WIN32.EXE;
      WIN32US.EXE; WINACTIVE.EXE; WINDOW.EXE; WINDOWS.EXE; WININETD.EXE;
      WININIT.EXE; WININITX.EXE; WINLOGIN.EXE; WINMAIN.EXE; WINNET.EXE;
      WINPPR32.EXE; WINRECON.EXE; WINSERVN.EXE; WINSSK32.EXE; WINSTART.EXE;
      WINSTART001.EXE; WINTSK32.EXE; WINUPDATE.EXE; WKUFIND.EXE; WNAD.EXE;
      WNT.EXE; WRADMIN.EXE; WRCTRL.EXE; WSBGATE.EXE; WUPDATER.EXE;
      WUPDT.EXE; WYVERNWORKSFIREWALL.EXE; XPF202EN.EXE; ZAPRO.EXE;
      ZAPSETUP3001.EXE; ZATUTOR.EXE; ZONALM2601.EXE; ZONEALARM.EXE

Miscellaneous Mutex:
It creates the following Mutex:
• scxgdvfhbgjn

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

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

See a brief description here.

Description inserted by Andrei Gherman on Mon, 31 Oct 2005 14:23 (GMT+1)
Description updated by Oliver Auerbach on Thu, 10 Nov 2005 22:59 (GMT+1)

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