W32.Assiral.B@mm

Risk Level 2: Low

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Discovered: March 2, 2005
Updated: February 13, 2007 12:34:36 PM
Also Known As: Email-Worm.Win32.Ariss.c [Kasp, W32/Laris.worm [McAfee], W32/Assiral-B [Sophos], WORM_ASSIRAL.C [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


W32.Assiral.B@mm is a mass-mailing worm that sends a copy of itself to email addresses gathered from a compromised computer. The worm also ends various processes, some of which may be security related.

The email will have a variable subject and attachment name. The attachment will have a .exe file extension.



Processes deleted by W32.Assiral.B@mm:
    • AGENTSVR.EXE
    • ANTI-TROJAN.EXE
    • ANTIVIRUS.EXE
    • ANTS.EXE
    • APIMONITOR.EXE
    • APLICA32.EXE
    • APVXDWIN.EXE
    • ATCON.EXE
    • ATGUARD.EXE
    • ATRO55EN.EXE
    • ATUPDATER.EXE
    • ATWATCH.EXE
    • AUPDATE.EXE
    • AUTODOWN.EXE
    • AUTOTRACE.EXE
    • AUTOUPDATE.EXE
    • AVCONSOL.EXE
    • AVGSERV9.EXE
    • AVLTMAIN.EXE
    • AVPUPD.EXE
    • AVSYNMGR.EXE
    • AVWUPD32.EXE
    • AVXQUAR.EXE
    • AVprotect9x.exe
    • Au.exe
    • BD_PROFESSIONAL.EXE
    • BIDEF.EXE
    • BIDSERVER.EXE
    • BIPCP.EXE
    • BIPCPEVALSETUP.EXE
    • BISP.EXE
    • BLACKD.EXE
    • BLACKICE.EXE
    • BOOTWARN.EXE
    • BORG2.EXE
    • BS120.EXE
    • CCAPP.exe
    • CDP.EXE
    • CFGWIZ.EXE
    • CFIADMIN.EXE
    • CFIAUDIT.EXE
    • CFINET.EXE
    • CFINET32.EXE
    • CLEAN.EXE
    • CLEANER.EXE
    • CLEANER3.EXE
    • CLEANPC.EXE
    • CMGRDIAN.EXE
    • CMON016.EXE
    • CPD.EXE
    • CPF9X206.EXE
    • CPFNT206.EXE
    • CV.EXE
    • CWNB181.EXE
    • CWNTDWMO.EXE
    • D3dupdate.exe
    • DEFWATCH.EXE
    • DEPUTY.EXE
    • DPF.EXE
    • DPFSETUP.EXE
    • DRWATSON.EXE
    • DRWEBUPW.EXE
    • ENT.EXE
    • ESCANH95.EXE
    • ESCANHNT.EXE
    • ESCANV95.EXE
    • EXANTIVIRUS-CNET.EXE
    • FAST.EXE
    • FIREWALL.EXE
    • FLOWPROTECTOR.EXE
    • FP-WIN_TRIAL.EXE
    • FRW.EXE
    • FSAV.EXE
    • FSAV530STBYB.EXE
    • FSAV530WTBYB.EXE
    • FSAV95.EXE
    • GBMENU.EXE
    • GBPOLL.EXE
    • GUARD.EXE
    • HACKTRACERSETUP.EXE
    • HTLOG.EXE
    • HWPE.EXE
    • IAMAPP.EXE
    • IAMSERV.EXE
    • ICLOAD95.EXE
    • ICLOADNT.EXE
    • ICMON.EXE
    • ICSSUPPNT.EXE
    • ICSUPP95.EXE
    • ICSUPPNT.EXE
    • IFW2000.EXE
    • IPARMOR.EXE
    • IRIS.EXE
    • JAMMER.EXE
    • KAVLITE40ENG.EXE
    • KAVPERS40ENG.EXE
    • KERIO-PF-213-EN-WIN.EXE
    • KERIO-WRL-421-EN-WIN.EXE
    • KERIO-WRP-421-EN-WIN.EXE
    • KILLPROCESSSETUP161.EXE
    • LDPRO.EXE
    • LOCALNET.EXE
    • LOCKDOWN.EXE
    • LOCKDOWN2000.EXE
    • LSETUP.EXE
    • LUALL.EXE
    • LUCOMSERVER.EXE
    • LUINIT.EXE
    • MCAGENT.EXE
    • MCUPDATE.EXE
    • MFW2EN.EXE
    • MFWENG3.02D30.EXE
    • MGUI.EXE
    • MINILOG.EXE
    • MOOLIVE.EXE
    • MRFLUX.EXE
    • MSCONFIG.EXE
    • MSINFO32.EXE
    • MSSMMC32.EXE
    • MU0311AD.EXE
    • NAV80TRY.EXE
    • NAVAPW32.EXE
    • NAVDX.EXE
    • NAVSTUB.EXE
    • NAVW32.EXE
    • NC2000.EXE
    • NCINST4.EXE
    • NDD32.EXE
    • NEOMONITOR.EXE
    • NETARMOR.EXE
    • NETINFO.EXE
    • NETMON.EXE
    • NETSCANPRO.EXE
    • NETSPYHUNTER-1.2.EXE
    • NETSTAT.EXE
    • NISSERV.EXE
    • NISUM.EXE
    • NMAIN.EXE
    • NORTON_INTERNET_SECU_3.0_407.EXE
    • NPF40_TW_98_NT_ME_2K.EXE
    • NPFMESSENGER.EXE
    • NPROTECT.EXE
    • NSCHED32.EXE
    • NTVDM.EXE
    • NUPGRADE.EXE
    • NVARCH16.EXE
    • NWINST4.EXE
    • NWTOOL16.EXE
    • OSTRONET.EXE
    • OUTPOST.EXE
    • OUTPOSTINSTALL.EXE
    • OUTPOSTPROINSTALL.EXE
    • PADMIN.EXE
    • PANIXK.EXE
    • PAVPROXY.EXE
    • PCC2002S902.EXE
    • PCC2K_76_1436.EXE
    • PCCIOMON.EXE
    • PCDSETUP.EXE
    • PCFWALLICON.EXE
    • PCIP10117_0.EXE
    • PDSETUP.EXE
    • PERISCOPE.EXE
    • PERSFW.EXE
    • PF2.EXE
    • PFWADMIN.EXE
    • PLATIN.EXE
    • POPROXY.EXE
    • POPSCAN.EXE
    • PORTDETECTIVE.EXE
    • PPINUPDT.EXE
    • PPTBC.EXE
    • PPVSTOP.EXE
    • PROCEXPLORERV1.0.EXE
    • PROPORT.EXE
    • PROTECTX.EXE
    • PSPF.EXE
    • PURGE.EXE
    • PVIEW95.EXE
    • QCONSOLE.EXE
    • QSERVER.EXE
    • RAV8WIN32ENG.EXE
    • RESCUE.EXE
    • RESCUE32.EXE
    • RRGUARD.EXE
    • RSHELL.EXE
    • RTVSCN95.EXE
    • RULAUNCH.EXE
    • SAFEWEB.EXE
    • SBSERV.EXE
    • SD.EXE
    • SETUPVAMEEVAL.EXE
    • SETUP_FLOWPROTECTOR_US.EXE
    • SFC.EXE
    • SGSSFW32.EXE
    • avserve2.exe
    • SHELLSPYINSTALL.EXE
    • SHN.EXE
    • SMC.EXE
    • SOFI.EXE
    • SPF.EXE
    • SPHINX.EXE
    • SPYXX.EXE
    • SS3EDIT.EXE
    • ST2.EXE
    • SUPFTRL.EXE
    • SUPPORTER5.EXE
    • SYMPROXYSVC.EXE
    • SYSEDIT.EXE
    • TASKMON.EXE
    • TAUMON.EXE
    • TAUSCAN.EXE
    • TC.EXE
    • TCA.EXE
    • TCM.EXE
    • TDS-3.EXE
    • TDS2-98.EXE
    • TDS2-NT.EXE
    • TFAK5.EXE
    • TGBOB.EXE
    • TITANIN.EXE
    • TITANINXP.EXE
    • TRACERT.EXE
    • TRJSCAN.EXE
    • TRJSETUP.EXE
    • TROJANTRAP3.EXE
    • UNDOBOOT.EXE
    • UPDATE.EXE
    • VBCMSERV.EXE
    • VBCONS.EXE
    • VBUST.EXE
    • VBWIN9X.EXE
    • VBWINNTW.EXE
    • VCSETUP.EXE
    • VFSETUP.EXE
    • VIRUSMDPERSONALFIREWALL.EXE
    • VNLAN300.EXE
    • VNPC3000.EXE
    • VPC42.EXE
    • VPFW30S.EXE
    • VPTRAY.EXE
    • VSCENU6.02D30.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
    • WEBSCANX.EXE
    • WGFE95.EXE
    • WINRECON.EXE
    • WNT.EXE
    • WRCTRL.EXE
    • WSBGATE.EXE
    • WYVERNWORKSFIREWALL.EXE
    • XPF202EN.EXE
    • ZAPRO.EXE
    • ZAPSETUP3001.EXE
    • ZATUTOR.EXE
    • ZAUINST.EXE
    • ZONALM2601.EXE
    • ZONEALARM.EXE
    • lexplore.exe
    • Drunk_lol.pif
    • Webcam_004.pif
    • sexy_bedroom.pif
    • naked_party.pif
    • love_me.pif
    • osm.exe
    • cz.exe
    • Webcam.pif
    • hahahaha.pif
    • me_2005.pif
    • sister.pif
    • winhost.exe
    • LOL.scr
    • Webcam.pif
    • naked_drunk.pif
    • LMAO.pif
    • ROFL.pif
    • underware.pif
    • Hot.pif
    • new_webcam.pif
    • msnus.exe
    • sexy.jpg
    • updates.exe
    • msnmsr.exe
    • bedroom-things.pif
    • naked_drunk.pif
    • my_pussy.pif
    • ROFL.pif
    • Hot.pif
    • ISASS.EXE
    • Beautiful Ass.pif
    • John Kerry as Super Chicken.scr
    • Kool.pif
    • Me & you pic!.pif
    • Me Pissed!.pif
    • sexy.pif
    • She Could Fit her Ass in a Teacup.pif
    • she's fuckin fit.pif
    • titanic2.jpg.pif
    • winis.exe
    • nvsc32.exe


Protection

  • Initial Rapid Release version March 3, 2005
  • Latest Rapid Release version July 26, 2008 revision 017
  • Initial Daily Certified version March 3, 2005
  • Latest Daily Certified version January 20, 2009 revision 048
  • Initial Weekly Certified release date March 6, 2005

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High

Writeup By: Yana Liu
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