W32/MyTob.MQ@mm

Alias/es

Net-Worm.Win32.Mytob.bi, W32.Mytob.KE@mm, W32/Mytob-EV, W32/Mytob.gd@MM virus, W32/Mytob.KH.worm, W32/MyTob.MQ-mm, W32/Mytob.MR@mm, Win32.Worm.Mytob.DF, Win32/Mytob.KX worm, WORM_MYTOB.LF

Release Date

Oct 08, 2005

Detection Availability

Current Antivirus Definition Database Version: 12.196

Description

Visible Symptoms

The file msmanager.exe exists in the System folder.
Possible termination of the firewall or other security applications, including antivirus monitors.
Inability to connect with certain security related websites.

Detailed Analysis

Sample is packed with MEW.
Creates a mutex named H-E-L-L-B-O-T-P-O-L-Y-M-O-R-P-H to make sure that only one instance is running.
Copies itself to the System folder as msmanager.exe.

Autostart Mechanism
Creates the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Manager = "msmanager.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Manager = "msmanager.exe"

Email Propagation
Sends itself as an attachment to email addresses that it finds.
Avoids sending a copy of itself to email addresses that contain any of the following strings:
- berkeley
- mit.e
- ibm.com
- google
- kernel
- linux
- usenet
- rfc-ed
- sendmail
- arin.
- ripe.
- isi.e
- isc.o
- secur
- acketst
- tanford.e
- utgers.ed
- mozilla
- be_loyal:
- samples
- postmaster
- webmaster
- submit
- feste
- gold-certs
- support
- secur
- abuse
- support
- administrator
- service
- admin
- register
- webmaster
Appends the following prefixes to domain names in an attempt to find Simple Mail Transfer Protocol (SMTP) servers:
- mx.
- mail.
- smtp.
- mx1.
- mxs.
- mail1.
- relay.
- ns.
- gate.

Uses its own SMTP engine to send itself to the email addresses that it finds. The email has the following characteristics:

From: One of the following:

redton
michael
jamesy
mikey
kevin
david
george
andrewy
josey
maria
briany
maryy
peter
roberty
janey
matty
steve
smithy
stany
billy
freddy
pauly
brenty
sales
brenda
claudiay
debby
helen
juliey
linday
michael
franky
adamy
sandray

Subject: One of the following:

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

Message Body: one of the following:

Dear user [USER NAME],
You have successfully updated the password of your [DOMAIN] account. If you did not authorize this change or if you need assistance with your account, please contact [DOMAIN] customer service at:
[EMAIL]
Thank you for using [DOMAIN]!
The [DOMAIN] Support Team
+++ Attachment: No Virus (Clean)
+++ [DOMAIN] Antivirus - www.[DOMAIN]

Dear user [USER NAME],
It has come to our attention that your [DOMAIN] User Profile ( x ) records are out of date. For further details see the attached document.
Thank you for using [DOMAIN]!
The [DOMAIN] Support Team
+++ Attachment: No Virus (Clean)
+++ [DOMAIN] Antivirus - www.[DOMAIN]

Dear [USER NAME] Member,
We have temporarily suspended your email account [EMAIL].
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 [DOMAIN] account.
Sincerely,The [DOMAIN] Support Team
+++ Attachment: No Virus (Clean)
+++ [DOMAIN] Antivirus - www.[DOMAIN]

Dear [DOMAIN] 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 [DOMAIN] Support Team
+++ Attachment: No Virus found
+++ [DOMAIN] Antivirus - www.[DOMAIN]

Attachment: [Filename].[Extension]

[Filename] can be a random string of characters or any of the following:

updated-password
email-password
new-password
password
approved-password
account-password
accepted-password
important-details
account-details
email-details
account-info
document
readme
account-report

[Extension] can be any of the following:

pif
scr
exe

Backdoor and/or Trojan Behavior

Modifies the following registry entry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess
Start = 4
Connects to an Internet Relay Chat (IRC) server and listens for commands that allow the remote attacker to perform any of the following actions:
- Download files
- Execute files
- Get system information
- Execute mass-mailing routine

Blocks access to several security-related Web sites by appending the following text to the local HOSTS file:

127.0.0.1 www.symantec.com
127.0.0.1 securityresponse.symantec.com
127.0.0.1 symantec.com
127.0.0.1 www.sophos.com
127.0.0.1 sophos.com
127.0.0.1 www.mcafee.com
127.0.0.1 mcafee.com
127.0.0.1 liveupdate.symantecliveupdate.com
127.0.0.1 www.viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 viruslist.com
127.0.0.1 f-secure.com
127.0.0.1 www.f-secure.com
127.0.0.1 kaspersky.com
127.0.0.1 kaspersky-labs.com
127.0.0.1 www.avp.com
127.0.0.1 www.kaspersky.com
127.0.0.1 avp.com
127.0.0.1 www.networkassociates.com
127.0.0.1 networkassociates.com
127.0.0.1 www.ca.com
127.0.0.1 ca.com
127.0.0.1 mast.mcafee.com
127.0.0.1 my-etrust.com
127.0.0.1 www.my-etrust.com
127.0.0.1 download.mcafee.com
127.0.0.1 dispatch.mcafee.com
127.0.0.1 secure.nai.com
127.0.0.1 nai.com
127.0.0.1 www.nai.com
127.0.0.1 update.symantec.com
127.0.0.1 updates.symantec.com
127.0.0.1 us.mcafee.com
127.0.0.1 liveupdate.symantec.com
127.0.0.1 customer.symantec.com
127.0.0.1 rads.mcafee.com
127.0.0.1 trendmicro.com
127.0.0.1 pandasoftware.com
127.0.0.1 www.pandasoftware.com
127.0.0.1 www.trendmicro.com
127.0.0.1 www.grisoft.com
127.0.0.1 www.microsoft.com
127.0.0.1 microsoft.com
127.0.0.1 www.virustotal.com
127.0.0.1 virustotal.com
127.0.0.1 www.amazon.com
127.0.0.1 www.amazon.co.uk
127.0.0.1 www.amazon.ca
127.0.0.1 www.amazon.fr
127.0.0.1 www.paypal.com
127.0.0.1 paypal.com
127.0.0.1 moneybookers.com
127.0.0.1 www.moneybookers.com
127.0.0.1 www.ebay.com
127.0.0.1 ebay.com

Attempts to end the following processes, some of which may be security-related:
- 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
- ATUPDATER.EXE
- ATWATCH.EXE
- AU.EXE
- AUPDATE.EXE
- AUPDATE.EXE
- AUTODOWN.EXE
- AUTODOWN.EXE
- AUTOTRACE.EXE
- AUTOTRACE.EXE
- AUTOUPDATE.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
- AVPUPD.EXE
- AVSCHED32.EXE
- AVSYNMGR.EXE
- AVWINNT.EXE
- AVWUPD.EXE
- AVWUPD32.EXE
- AVWUPD32.EXE
- AVWUPSRV.EXE
- AVXMONITOR9X.EXE
- AVXMONITORNT.EXE
- AVXQUAR.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
- CFIAUDIT.EXE
- CFINET.EXE
- CFINET32.EXE
- CLEAN.EXE
- CLEANER.EXE
- CLEANER3.EXE
- CLEANPC.EXE
- CLICK.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
- CLAW95CF.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
- LUALL.EXE
- LUAU.EXE
- LUCOMSERVER.EXE
- LUINIT.EXE
- LUSPT.EXE
- MAPISVC32.EXE
- MCAGENT.EXE
- MCMNHDLR.EXE
- MCSHIELD.EXE
- MCTOOL.EXE
- MCUPDATE.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
- AUTO-PROTECT.NAV80TRY.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
- 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
- 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
- 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
- SETUPVAMEEVAL.EXE
- SETUP_FLOWPROTECTOR_US.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
- SSGRATE.EXE
- SSG_4104.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
- 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
- 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
- _AVP32.EXE
- _AVPCC.EXE
- _AVPM.EXE
- CMD.EXE
- TASKMGR.EXE
- NEC.EXE

Description Last Updated Date: Aug 27, 2006
Reference: ID - 98533