WORM_RANDEX.ZK

Malware type: Worm

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 95, 98, ME, NT, 2000, XP

Encrypted: No

Overall risk rating:

Reported infections:

Damage potential:

High

Distribution potential:

High

Description: 

This memory-resident worm propagates through network shares. It uses a list of text strings as user names and passwords to gain entry to target systems.

It also has backdoor capabilities, and acts as an IRC (Internet Relay Chat) bot. It provides a remote user the ability to perform the following activities:

  • Download and execute files
  • Act as FTP and HTTP server
  • Update malware
  • Perfrom DDOS attacks
  • Enable and disable DCOM

This worm steals the CD keys of several popular games, as well as user and system data by logging keystrokes. It terminates several processes and modifies the Windows registry to allow malicious activities by remote users.

For additional information about this threat, see:

Description created: Sep. 26, 2004 9:51:08 PM GMT -0800
Description updated: Sep. 26, 2004 11:35:15 PM GMT -0800


TECHNICAL DETAILS


Size of malware: 67,584 Bytes

Initial samples received on: Sep 26, 2004

Payload 1: Compromises network security

Details:

Installation and Autostart

This memory-resident worm propagates through network shares. Upon execution, it creates the file, MFXZ.EXE, in the Windows system folder.

To execute every time the system is restarted, it creates the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunServices
Microsoft Manager = "MFXZ.EXE"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Microsoft Manager = "MFXZ.EXE"

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\RunServices
Microsoft Manager = "MFXZ.EXE"

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
Microsoft Manager = "MFXZ.EXE"

Other Registry Modifications

This worm also modifies the following registry entries, which allows its bot component to share or unshared system folders:

From:

HKEY_LOCAL_MACHINE\Software\Microsoft\Ole
EnableDCOM = "Y"

HKEY_LOCAL_MACHINE\System\CurrentControlSet
Control\Lsa
restrictanonymous = "dword:00000000"

To:

HKEY_LOCAL_MACHINE\Software\Microsoft\Ole
EnableDCOM = "N"

HKEY_LOCAL_MACHINE\System\CurrentControlSet
restrictanonymous = "dword:00000001"

Network Propagation

To propagate, this worm scans the network and attempts to drop a copy of itself into accessed machines. It uses the following list of text strings as user names and passwords to gain entry to target systems:

  • 00000
  • 000000
  • 00000000
  • 0wn3d
  • 0wned
  • 111111
  • 11111111
  • 121212
  • 123123
  • 12345
  • 123456
  • 1234567
  • 12345678
  • 123456789
  • 12346
  • 123467
  • 1234678
  • 12346789
  • 123467890
  • 1234qwer
  • 123abc
  • 123asd
  • 123qwe
  • 54321
  • 654321
  • 88888888
  • abc123
  • academia
  • academic
  • accept
  • ACCESS
  • access
  • account
  • accounting
  • accounts
  • action
  • ADMIN
  • admin
  • admin123
  • Administrator
  • ADMINISTRATOR
  • administrator
  • adrian
  • adrianna
  • adult
  • aerobics
  • airplane
  • alaska
  • albany
  • albatros
  • albatross
  • albert
  • alert
  • alexande
  • Alexander
  • algebra
  • aliases
  • alice
  • alicia
  • alisa
  • alison
  • allison
  • allow
  • alpha
  • alphabet
  • amadeus
  • amanda
  • amber
  • america
  • amorphou
  • amorphous
  • analog
  • anarchis
  • anarchy
  • anchor
  • andrea
  • android
  • andromac
  • andromache
  • angela
  • angerine
  • angie
  • animal
  • animals
  • anita
  • annette
  • anonymou
  • answer
  • anthrax
  • anthropo
  • anthropogenic
  • anvils
  • anything
  • apollo13
  • april
  • ariadne
  • arlene
  • arrow
  • arthur
  • artist
  • asian
  • asshole
  • athena
  • atmosphe
  • atmosphere
  • attack
  • authoriz
  • aztecs
  • azure
  • bacchus
  • backdoor
  • BACKUP
  • backup
  • badass
  • bailey
  • banana
  • bananas
  • bandit
  • banks
  • barbara
  • barber
  • baritone
  • bartman
  • baseball
  • basic
  • bassoon
  • batch
  • batman
  • beach
  • beammeup
  • beast
  • beater
  • beauty
  • beaver
  • becky
  • beethove
  • beethoven
  • begin
  • behead
  • beloved
  • beowulf
  • berkeley
  • berlin
  • berliner
  • beryl
  • betsie
  • betty
  • beverly
  • bible
  • bicamera
  • bicameral
  • bigfoot
  • billy
  • binary
  • bishop
  • bitch
  • bitmap
  • bitnet
  • black
  • blank
  • blonde
  • blondie
  • blood
  • bloodaxe
  • blowjob
  • blues
  • board
  • boner
  • boobs
  • boyscout
  • bradley
  • brandi
  • brandy
  • bravo
  • break
  • breast
  • brenda
  • brian
  • bridget
  • broadway
  • brothel
  • bruce
  • brunette
  • brute
  • brutefor
  • bulls
  • bullshit
  • bumbling
  • burgess
  • butch
  • butthead
  • californ
  • camille
  • campanil
  • campanile
  • camping
  • candi
  • candy
  • cantor
  • capitol
  • captain
  • capture
  • cardinal
  • caren
  • carla
  • carmen
  • carol
  • carole
  • carolina
  • caroline
  • carrie
  • carson
  • cascades
  • castle
  • catherin
  • catherine
  • catholic
  • cathy
  • cayuga
  • cecily
  • celtic
  • celtics
  • cerulean
  • change
  • Changeme
  • changeme
  • charity
  • charles
  • charlie
  • charming
  • charon
  • chemistr
  • chemistry
  • chess
  • chester
  • chris
  • christin
  • christina
  • christine
  • christy
  • cigar
  • cigarett
  • cindy
  • cisco
  • class
  • classes
  • classic
  • claudia
  • claymore
  • cleavage
  • clinton
  • cluster
  • clusters
  • coast
  • cocacola
  • cocainco
  • codename
  • codeword
  • coffee
  • collins
  • color
  • combat
  • comics
  • commit
  • commrade
  • commrades
  • company
  • compaq
  • computer
  • computin
  • comrade
  • comrades
  • condo
  • condom
  • connect
  • connie
  • conserva
  • console
  • continue
  • control
  • cookbook
  • cookie
  • cooper
  • copper
  • corneliu
  • cornelius
  • correct
  • counters
  • country
  • couscous
  • cowboy
  • crack
  • crackpot
  • crash
  • cream
  • create
  • creation
  • creature
  • credit
  • creosote
  • cretin
  • crime
  • criminal
  • cristina
  • crystal
  • cshrc
  • customer
  • cyber
  • cyberpun
  • cyberspa
  • cynthia
  • daemon
  • daisy
  • dancer
  • daniel
  • danielle
  • danny
  • dapper
  • darkaven
  • database
  • databasepass
  • databasepassword
  • db1234
  • dbpass
  • dbpassword
  • death
  • deathsta
  • debbie
  • deborah
  • debug
  • december
  • DEFAULT
  • default
  • defoe
  • delta
  • deluge
  • democrat
  • denise
  • dennis
  • desiree
  • desktop
  • desperat
  • desperate
  • develop
  • device
  • devil
  • diamond
  • diana
  • diane
  • diehard
  • dieter
  • digital
  • dinosaur
  • dipshit
  • direct
  • director
  • dirty
  • discipli
  • disclose
  • discover
  • discovery
  • diskette
  • disney
  • display
  • doctor
  • dollar
  • domain
  • domainpass
  • domainpassword
  • donaldduck
  • doom2
  • doomii
  • doomsday
  • doonesbu
  • doors
  • download
  • dragon
  • drdoom
  • drive
  • drought
  • dudette
  • duelist
  • dulce
  • duncan
  • dungeon
  • eager
  • eagle
  • earth
  • easier
  • eatme
  • eddie
  • edges
  • edinburg
  • edinburgh
  • edition
  • educatio
  • education
  • edwin
  • edwina
  • egghead
  • eiderdow
  • eiderdown
  • eileen
  • einsiein
  • einstein
  • elaine
  • elanor
  • electron
  • elephant
  • elizabet
  • elizabeth
  • ellen
  • email
  • emerald
  • emily
  • emmanuel
  • enable
  • enemy
  • engine
  • engineer
  • england
  • english
  • enter
  • enterpri
  • enterprise
  • enzyme
  • erenity
  • erica
  • erika
  • erotic
  • ersatz
  • establis
  • establish
  • estate
  • eternity
  • euclid
  • evelyn
  • exchange
  • exchnge
  • expert
  • explode
  • explore
  • explorer
  • explosiv
  • extensio
  • extension
  • fairway
  • faith
  • falcon
  • false
  • family
  • farad
  • faraday
  • felicia
  • fender
  • fermat
  • ferrari
  • fidelity
  • field
  • fight
  • FILES
  • finite
  • firewall
  • fishers
  • flakes
  • float
  • florida
  • flower
  • flowers
  • foobar
  • foolproo
  • foolproof
  • football
  • force
  • foresigh
  • foresight
  • forever
  • format
  • fornicat
  • forsythe
  • fourier
  • foxtrot
  • france
  • frank
  • freak
  • freddy
  • freedom
  • french
  • friday
  • friend
  • friends
  • frighten
  • fryguy
  • fubar
  • fucked
  • fucker
  • fucking
  • fuckme
  • fuckyou
  • fudge
  • function
  • fungible
  • gabriel
  • games
  • gardner
  • garfield
  • gateway
  • gatherin
  • gauss
  • george
  • gertrude
  • ghost
  • gibson
  • gigabyte
  • ginger
  • glacier
  • godblessyou
  • golden
  • golfer
  • gorgeous
  • gorges
  • gosling
  • gouge
  • govermen
  • grades
  • graham
  • grahm
  • grand
  • grant
  • great
  • green
  • group
  • gryphon
  • guardian
  • gucci
  • guess
  • guessme
  • GUEST
  • guest
  • guitar
  • gumption
  • guntis
  • h4x0r1ng
  • h4x0ring
  • h4x1ng
  • hacked
  • hacker
  • hagar
  • hallowee
  • hamlet
  • hamster
  • handel
  • handily
  • handjob
  • happenin
  • happening
  • hardcore
  • harddriv
  • harmony
  • harold
  • harvey
  • haven
  • hawaii
  • hax0r
  • haxing
  • headbang
  • headoffice
  • heathen
  • heather
  • heaven
  • hebrides
  • heidi
  • heinlein
  • hello
  • herbert
  • heroin
  • hewlett
  • hexadeci
  • hiawatha
  • hibernia
  • hidden
  • highland
  • hitler
  • holly
  • hollywoo
  • homepage
  • homer
  • homeuser
  • homework
  • honey
  • hooker
  • hooters
  • horny
  • horrible
  • horror
  • horse
  • horus
  • hotdog
  • hotel
  • hunter
  • hutchins
  • hydrogen
  • hyper
  • hypertxt
  • icecream
  • ihavenopass
  • illumina
  • image
  • imbrogli
  • imbroglio
  • immortal
  • imperial
  • include
  • india
  • indian
  • indiana
  • indians
  • ingres
  • ingress
  • ingrid
  • innocuou
  • innocuous
  • input
  • inside
  • integer
  • Internet
  • internet
  • intranet
  • invent
  • irene
  • irishman
  • irule
  • jackie
  • janet
  • janice
  • janie
  • japan
  • jasmin
  • jeanne
  • jenni
  • jennifer
  • jenny
  • jerry
  • jerusale
  • jessica
  • jester
  • jewelry
  • jixian
  • joanne
  • johndoe
  • johnny
  • joseph
  • joshua
  • journal
  • joyce
  • judith
  • juggle
  • juicy
  • julia
  • julie
  • juliet
  • jupiter
  • karen
  • karie
  • karina
  • katana
  • kathleen
  • kathrine
  • kathy
  • katie
  • katina
  • katrina
  • kelly
  • kermit
  • kernel
  • kerri
  • kerrie
  • kerry
  • kevin
  • keybord
  • keyin
  • keyword
  • kiddie
  • killer
  • killthem
  • kimberly
  • kirkland
  • kissmyas
  • kitten
  • klingon
  • knife
  • knight
  • knightma
  • known
  • krista
  • kristen
  • kristi
  • kristie
  • kristin
  • kristine
  • kristy
  • ladeda
  • ladies
  • ladle
  • lakers
  • lambda
  • laminati
  • lamination
  • laptop
  • larkin
  • larry
  • laser
  • laura
  • lazarus
  • lazer
  • lebesgue
  • leftwing
  • legal
  • leland
  • leroy
  • lesbian
  • leslie
  • letmein
  • lewis
  • lexluthe
  • liberal
  • library
  • licker
  • light
  • lightsab
  • limbaugh
  • limited
  • linda
  • linux
  • literatu
  • LOCAL
  • lockout
  • lockword
  • logic
  • login
  • loginpass
  • loginwor
  • lolopc
  • loose
  • lorin
  • lorraine
  • loser
  • louis
  • lovebug
  • lover
  • lucus
  • lynne
  • machine
  • macintos
  • macintosh
  • macro
  • maggot
  • magic
  • magnet
  • maint
  • malcolm
  • malcom
  • manager
  • marci
  • marcy
  • maria
  • mariens
  • marietta
  • marijuan
  • marines
  • markus
  • marni
  • marriage
  • marty
  • marvin
  • mason
  • master
  • Matthew
  • maurice
  • meagan
  • megabyte
  • megadeth
  • megan
  • melissa
  • mellon
  • melrose
  • member
  • memory
  • menace
  • mercury
  • merlin
  • metal
  • metalhea
  • metalica
  • michael
  • michel
  • michelan
  • michele
  • michelle
  • mickey
  • micro
  • microchi
  • micropro
  • microsof
  • midieval
  • minimum
  • minsky
  • misfit
  • mission
  • modem
  • mogul
  • moguls
  • monday
  • monica
  • moose
  • morley
  • morris
  • mortal
  • mortalco
  • mortgage
  • mosaic
  • mountain
  • mouse
  • movie
  • movies
  • mozart
  • msdos
  • muppets
  • mutant
  • mypass
  • mypass123
  • mypc123
  • nagel
  • nancy
  • napoleon
  • nepenthe
  • neptune
  • netdevil
  • net-devil
  • netfuck
  • netscape
  • network
  • newborn
  • newsgrou
  • newton
  • newyork
  • nicole
  • nicotine
  • night
  • nightmar
  • Nilez
  • nintendo
  • nnaacp
  • noble
  • nobody
  • nokia
  • noreen
  • notes
  • novel
  • november
  • noxious
  • nuclear
  • nukem
  • number
  • nutritio
  • nutrition
  • nyquist
  • obscurit
  • oceanogr
  • oceanography
  • ocelot
  • oeminstall
  • oemuser
  • office
  • oldage
  • olivetti
  • olivia
  • omega
  • opening
  • openlock
  • opensesa
  • operator
  • oracle
  • orange
  • orient
  • orwell
  • oscar
  • osiris
  • outdoors
  • outlaw
  • outlook
  • output
  • outside
  • owned
  • Owner
  • OWNER
  • oxford
  • pacific
  • packard
  • packer
  • painless
  • paint
  • pakistan
  • pamela
  • paper
  • papers
  • pascal
  • pass1234
  • passphra
  • passwd
  • PASSWORD
  • password
  • password1
  • paste
  • patricia
  • patrick
  • patriot
  • patty
  • paula
  • peanuts
  • pecker
  • pencil
  • penelope
  • penguin
  • penis
  • penname
  • pentagon
  • pentagra
  • penthous
  • pentium
  • peoria
  • pepper
  • pepsi
  • percolat
  • percolate
  • perfect
  • permit
  • persimmo
  • persimmon
  • persona
  • pervert
  • peter
  • philip
  • phoenix
  • phone
  • photon
  • phrack
  • phrase
  • phreak
  • phuck
  • pierre
  • pinname
  • pizza
  • plane
  • playboy
  • plover
  • pluto
  • plymouth
  • poetry
  • police
  • polly
  • polynomi
  • polynomial
  • ponderin
  • pondering
  • porno
  • porsche
  • poster
  • power
  • praise
  • precious
  • prelude
  • presto
  • prince
  • princeto
  • princeton
  • printer
  • private
  • privs
  • proceed
  • processo
  • professo
  • professor
  • profile
  • program
  • prompt
  • protect
  • protozoa
  • psycho
  • psychopa
  • public
  • pumpkin
  • puneet
  • punisher
  • puppet
  • pussy
  • pw123
  • quebec
  • qwert
  • qwerty
  • rabbit
  • rachel
  • rachelle
  • rachmani
  • rachmaninoff
  • rainbow
  • raindrop
  • raleigh
  • random
  • rascal
  • razor
  • reagan
  • reality
  • really
  • reaper
  • rebal
  • rebecca
  • rebel
  • record
  • reddawn
  • redhead
  • referenc
  • regional
  • release
  • remote
  • renee
  • report
  • republic
  • resistan
  • reveal
  • rhino
  • riffraff
  • right
  • rightwin
  • ripple
  • roach
  • robert
  • robin
  • robot
  • robotics
  • robyn
  • rochelle
  • rocheste
  • rochester
  • rocky
  • rockyhor
  • rodent
  • rolex
  • romano
  • romeo
  • romulan
  • ronald
  • Rosco
  • RoscoP
  • RoscoPColtrane
  • rosebud
  • rosemary
  • roses
  • rough
  • rubber
  • ruben
  • rules
  • running
  • salami
  • samantha
  • sample
  • sandra
  • sandy
  • sarah
  • satan
  • satanic
  • satanik
  • saturday
  • saturn
  • saxon
  • scamper
  • scheme
  • school
  • schoolsucks
  • scifi
  • scorpion
  • scott
  • scotty
  • scout
  • script
  • scriptkiddie
  • search
  • secret
  • security
  • sensor
  • sentinel
  • sentry
  • serenity
  • serial
  • SERVER
  • server
  • service
  • sesame
  • shannon
  • sharc
  • SHARE
  • shark
  • sharks
  • sharon
  • sheffiel
  • sheffield
  • sheldon
  • shell
  • sherri
  • shift
  • shirley
  • shitpot
  • shiva
  • shivers
  • short
  • shuttle
  • siemens
  • sierra
  • signatur
  • signature
  • silver
  • simcity
  • simon
  • simple
  • simpsons
  • simulati
  • singer
  • single
  • skull
  • slave
  • slick
  • sliders
  • small
  • smart
  • smile
  • smiles
  • smooch
  • smother
  • snach
  • snafu
  • snake
  • snatch
  • snoopy
  • social
  • socrates
  • sodomy
  • software
  • somebody
  • sondra
  • sonia
  • sonic
  • sonya
  • sossina
  • source
  • south
  • spaceman
  • spaceshi
  • sparrows
  • spear
  • spell
  • spencer
  • spice
  • spider
  • spiderma
  • spred
  • spring
  • springer
  • spunk
  • sqlpass
  • squires
  • stacey
  • staci
  • stacie
  • stacy
  • staff
  • starship
  • start
  • startrek
  • startup
  • starwars
  • steak
  • steal
  • steel
  • steph
  • stephani
  • stephanie
  • stereo
  • steve
  • stoneage
  • stoned
  • stones
  • strange
  • strangle
  • stratfor
  • stratford
  • streetfi
  • string
  • strip
  • student
  • student1
  • stuttgar
  • stuttgart
  • subscrib
  • subway
  • success
  • suckmydi
  • sucks
  • summer
  • sunday
  • super
  • superman
  • superson
  • supersta
  • superstage
  • superuse
  • superuser
  • supervis
  • support
  • supporte
  • supported
  • surfer
  • surfing
  • susan
  • susanne
  • susie
  • suzanne
  • suzie
  • swearer
  • sweat
  • switch
  • sword
  • sybase
  • sybil
  • symmetry
  • sysadmin
  • sysop
  • SYSTEM
  • system
  • tabasco
  • tamara
  • tamie
  • tammy
  • tangerin
  • tangerine
  • tango
  • target
  • tarragon
  • taylor
  • teacher
  • teapot
  • tears
  • technical
  • teenage
  • telephon
  • telephone
  • telnet
  • temp123
  • temptati
  • temptation
  • tennis
  • terminal
  • terminat
  • test123
  • tester
  • testin
  • testing
  • tetris
  • thailand
  • theresa
  • thursday
  • tiffany
  • tiger
  • toggle
  • token
  • tokenrin
  • tomato
  • topograp
  • topography
  • tortoise
  • toxic
  • toyota
  • traci
  • tracie
  • tracy
  • trails
  • transfer
  • trapdoor
  • trisha
  • trivial
  • trojan
  • trombone
  • truth
  • tubas
  • tuesday
  • turnip
  • tuttle
  • umesh
  • uncle
  • unhappy
  • unicorn
  • uniform
  • universa
  • universe
  • universi
  • unknown
  • unlock
  • upload
  • uranus
  • urchin
  • ursula
  • usenet
  • user1
  • usermane
  • username
  • userpassword
  • utility
  • uwontguessme
  • vagina
  • valerie
  • vampire
  • vasant
  • venus
  • veronica
  • vertigo
  • vicky
  • victor
  • video
  • videogam
  • village
  • virgin
  • virginia
  • virus
  • visitor
  • visual
  • visualba
  • vodka
  • warez
  • warfare
  • wargames
  • warren
  • watchwor
  • water
  • webpage
  • wednesda
  • weenie
  • wendi
  • wendy
  • werewolf
  • western
  • wh0r3
  • wh0re
  • whatever
  • whatnot
  • whisky
  • white
  • whiting
  • whitney
  • wholesal
  • wholesale
  • whore
  • wileecoyote
  • william
  • williams
  • williamsburg
  • willie
  • wilma
  • win2000
  • win2k
  • win98
  • windose
  • windows
  • windows2k
  • windows95
  • windows98
  • windowsME
  • WindowsXP
  • windowz
  • windoze
  • windoze2k
  • windoze95
  • windoze98
  • windozeME
  • windozexp
  • winnt
  • winpass
  • winston
  • winxp
  • wired
  • wisconsi
  • wisconsin
  • wiseass
  • within
  • wizard
  • wolverin
  • woman
  • wombat
  • women
  • woodwind
  • wordperf
  • wormwood
  • WRITE
  • wyoming
  • xmodem
  • xxxxx
  • xxxxxx
  • xxxxxxx
  • xxxxxxxx
  • xxxxxxxxx
  • xyzzy
  • yankee
  • yellow
  • yellowst
  • yellowstone
  • yolanda
  • yosemite
  • young
  • youwontguessme
  • zebra
  • zeitgeis
  • ziggy
  • zimmerma
  • zimmerman
  • zmodem
  • zombie

Once this worm has successfully accessed a system, it drops and executes a copy of itself in the following paths:

  • Admin$\System32
  • C$\Winnt\System32
  • C$\Windows\System32

Process Termination

This worm terminates the following processes:

  • MSCONFIG.EXE
  • REGEDIT.EXE
  • TASKMGR.EXE
  • TASKMON.EXE
  • TEST.EXE

Exploit

This worm takes advantage of the Remote Procedure Call (RPC) Distributed Component Object Model (DCOM) vulnerability present on Windows NT systems, which allows an attacker to gain full access and execute any code on a target machine, leaving it compromised.

Read more on this vulnerability from the following link:

Backdoor Capabilities

This worm has backdoor capabilities. It acts as an IRC (Internet Relay Chat) bot. It provides a remote user the ability to perform the following activities:

  • Download and execute files
  • Act as FTP and HTTP server
  • Update malware
  • Perfrom DDOS attacks
  • Enable and disable DCOM

Information Theft

This worm steals the CD keys the following game applications:

  • Battlefield 1942
  • Battlefield 1942 (Road To Rome)
  • Battlefield 1942 (Secret Weapons of WWII)
  • Battlefield Vietnam
  • Black and White
  • Chrome
  • Command and Conquer: Generals
  • Command and Conquer: Generals (Zero Hour)
  • Command and Conquer: Red Alert
  • Command and Conquer: Red Alert 2
  • Command and Conquer: Tiberian Sun
  • Counter-Strike (Retail)
  • FIFA 2002
  • FIFA 2003
  • Freedom Force
  • Global Operations
  • Gunman Chronicles
  • Half-Life
  • Hidden & Dangerous 2
  • IGI 2: Covert Strike
  • Industry Giant 2
  • James Bond 007: Nightfire
  • Legends of Might and Magic
  • Medal of Honor: Allied Assault
  • Medal of Honor: Allied Assault: Breakthrough
  • Medal of Honor: Allied Assault: Spearhead
  • Nascar Racing 2002
  • Nascar Racing 2003
  • Need For Speed Hot Pursuit 2
  • Need For Speed: Underground
  • Neverwinter Nights
  • Neverwinter Nights (Hordes of the Underdark)
  • Neverwinter Nights (Shadows of Undrentide)
  • NHL 2002
  • NHL 2003
  • Rainbow Six III RavenShield
  • Shogun: Total War: Warlord Edition
  • Soldier of Fortune II - Double Helix
  • Soldiers Of Anarchy
  • The Gladiators
  • Unreal Tournament 2003
  • Unreal Tournament 2004

It locates the product IDs of all Microsoft operating systems (OS) installed. It also carries keylogging functions and saves logged data in the file, KEYLOG.TXT, in Windows system folder.




Analysis by: Elmer M. Ubalde


SOLUTION


Minimum scan engine version needed: 6.810

Pattern file needed: 2.181.05

Pattern release date: Sep 26, 2004


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

AUTOMATIC REMOVAL INSTRUCTIONS

To automatically remove this malware from your system, please use Trend Micro Damage Cleanup Services.

MANUAL REMOVAL INSTRUCTIONS

Restarting in Safe Mode

� On Windows 95

  1. Restart your computer.
  2. Press F8 at the Starting Windows 95 message.
  3. Choose Safe Mode from the Windows 95 Startup Menu then press Enter.

� On Windows 98 and ME

  1. Restart your computer.
  2. Press the CTRL key until the startup menu appears.
  3. Choose the Safe Mode option then press Enter.

� On Windows NT (VGA mode)

  1. Click Start>Settings>Control Panel.
  2. Double-click the System icon.
  3. Click the Startup/Shutdown tab.
  4. Set the Show List field to 10 seconds and click OK to save this change.
  5. Shut down and restart your computer.
  6. Select VGA mode from the startup menu.

� On Windows 2000

  1. Restart your computer.
  2. Press the F8 key, when you see the Starting Windows bar at the bottom of the screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

� On Windows XP

  1. Restart your computer.
  2. Press F8 after the Power-On Self Test (POST) is done. If the Windows Advanced Options Menu does not appear, try restarting and then pressing F8 several times after the POST screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

Note: After performing all the solutions for the removal of this malware, please restart your system normally, and run your Trend Micro antivirus product.

Editing the Registry

This malware modifies the system's registry. Users affected by this malware may need to modify or delete specific registry keys or entries. For detailed information regarding registry editing, please refer to the following articles from Microsoft:

  1. HOW TO: Backup, Edit, and Restore the Registry in Windows 95, Windows 98, and Windows ME
  2. HOW TO: Backup, Edit, and Restore the Registry in Windows NT 4.0
  3. HOW TO: Backup, Edit, and Restore the Registry in Windows 2000
  4. HOW TO: Backup, Edit, and Restore the Registry in Windows XP

Removing Autostart Entries from the Registry

Removing autostart entries from the registry prevents the malware from executing at startup.

  1. Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
  2. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>Run
  3. In the right panel, locate and delete the entry:
    Microsoft Manager = "MFXZ.EXE"
  4. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>
    Windows>CurrentVersion>Run
  5. In the right panel, locate and delete the entry:
    Microsoft Manager = "MFXZ.EXE"
  6. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>
    Windows>CurrentVersion>Runservices
  7. In the right panel, locate and delete the entry:
    Microsoft Manager = "MFXZ.EXE"
  8. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>
    Windows>CurrentVersion>Runservices
  9. In the right panel, locate and delete the entry:
    Microsoft Manager = "MFXZ.EXE"

Restoring Other Malware Registry Entries

  1. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>Software>Microsoft>OLE
  2. In the right panel, locate and set the following entry if you wish to enable the DCOM protocol (default is enabled):
    EnableDCOM = Y
  3. Close Registry Editor.

Restoring EnableDCOM and RestrictAnonymous registry entries

This malware modifies EnableDCOM and RestrictAnonymous registry entries to a certain value. To know more about restoring these registries to their original values, please refer to these articles:

  1. COM security frequently asked questions
  2. How to disable DCOM support in Windows
  3. How to Use the RestrictAnonymous Registry Value in Windows 2000
  4. The "RestrictAnonymous" Registry Value May Break the Trust to a Windows 2000 Domain

Deleting Malware File

  1. Right-click Start then click Search� or Find�, depending on the version of Windows you are running.
  2. In the Named input box, type:
    NTFSDI.TXT
  3. In the Look In drop-down list, select the drive that contains Windows, then press Enter.
  4. Once located, select the file then press Delete.

Important Windows ME/XP Cleaning Instructions

Users running Windows ME and XP must disable System Restore to allow full scanning of infected systems.

Users running other Windows versions can proceed with the succeeding procedure sets.

Running Trend Micro Antivirus

Scan your system with Trend Micro antivirus and delete all files detected as WORM_RANDEX.ZK. To do this, Trend Micro customers must download the latest pattern file and scan their system. Other Internet users can use HouseCall, Trend Micro�s free online virus scanner.

Applying Patches

This malware exploits a known vulnerability on certain platforms. Download and install the critical patch from the following link:




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