WORM_BIZOME.D

 Analysis by: jasperm

 ALIASES:

Symantec: W32.Spybot.Worm ; Kaspersky : Worm.Win32.Zombaque.h ; Sophos: Mal/TinyDL-T

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

It displays a window upon execution.

It sends ICMP PING requests to a series of IP addresses and scans for port 4899 to check if those IP addresses have RADMIN service running. Once successful, it may use a hardcoded list of user names and passwords to gain access to the system.

This routine of sending PING requests to the IP addresses may cause denial of service (DoS) and heavy network traffic.

It may then save a copy, install and execute itself on the machine as %System%\ipz2.exe.

It uses port 689 to communicate between machines infected with this backdoor. This malicious file builds a peer-to-peer network which may then receive and send commands from/to other infected machines/malicious networks to download and execute other malicious files.

This worm may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites.

  TECHNICAL DETAILS

File Size:

458,752 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

12 Jan 2011

Payload:

Launches DoS/DDoS attacks, Compromises system security

Arrival Details

This worm may be dropped by other malware.

It may be unknowingly downloaded by a user while visiting malicious websites.

Installation

This worm drops the following non-malicious files:

  • %User Profile%\IPZ2\IPZ2.db

(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)

It creates the following folders:

  • %User Profile%\IPZ2

(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)

Autostart Technique

This worm registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ2
ImagePath = ImagePath = "{malware path and filename} -service"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ2
Start = 2

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ2
DisplayName = Intelligent P2P Zombie 2

Other System Modifications

This worm creates the following registry entry(ies) to bypass Windows Firewall:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
{malware path and filename} = {malware path and filename}:*:Enabled:ipz2

Other Details

This worm does the following:

  • Upon execution, this worm displays the following window:

  • It may be executed using command-line and may have the following parameters:
    • --install - install itself as service
    • --service - start service
    • --remove - remove service
    • --log - log activities of the malware
  • It sends ICMP PING requests to a series of IP addresses and scans for port 4899 to check if those IP addresses have RADMIN service running. Once successful, it may use the following hardcoded list of user names and passwords to gain access to the system:
    • vader
    • israel
    • norad
    • police
    • potter
    • satan
    • battle
    • witch
    • nigger
    • xerox
    • cinema
    • mouse
    • shinny
    • human
    • stereo
    • caddy
    • flight
    • handy
    • flower
    • share
    • ubuntu
    • shark
    • guitar
    • sharp
    • winter
    • harry
    • bottle
    • canon
    • coffee
    • venus
    • attack
    • earth
    • africa
    • leela
    • horror
    • scada
    • samael
    • major
    • bender
    • space
    • cavern
    • light
    • cannon
    • pilot
    • health
    • brent
    • gentoo
    • skate
    • neuron
    • leeps
    • summer
    • blood
    • grinder
    • pirate
    • anime
    • chopper
    • solder
    • south
    • username
    • soldier
    • google
    • rotor
    • rastaman
    • mozilla
    • master
    • motor
    • warcraft
    • offence
    • people
    • stick
    • universe
    • elevate
    • metall
    • grant
    • nekomimi
    • inferno
    • rocket
    • linux
    • creative
    • obvious
    • mondo
    • zeitgeist
    • starwars
    • captain
    • memory
    • video
    • tolerance
    • kamikaze
    • bicycle
    • passwd
    • robot
    • facebook
    • fighter
    • azerty
    • right
    • southpark
    • nothing
    • 123321
    • cyber
    • copypaste
    • password
    • lucifer
    • 121212
    • bucks
    • copyright
    • 1qaz2wsx
    • general
    • ytrewq
    • boobs
    • warhammer
    • zzzzzzzz
    • freedom
    • 000000
    • dream
    • helicopter
    • starcraft
    • qwerasdf
    • embrace
    • aaaaaa
    • press
    • calculator
    • hiroshima
    • 12344321
    • defence
    • 654321
    • stack
    • battleship
    • 1qa2ws3ed
    • 12341234
    • minigun
    • abcdef
    • april
    • skyscraper
    • abcdefghi
    • aaaaaaaa
    • october
    • qweasd
    • lover
    • 1q2w3e4r5t
    • 123454321
    • abcdefgh
    • welcome
    • qazwsx
    • abcdefghij
    • 123123123
    • qqqqqqqq
    • pasword
    • 123123
    • 1234554321
    • qazwsxedc
    • 1q2w3e4r
    • 1234321
    • 1q2w3e
    • paswd
    • qwertyuiop
    • qwertyuio
    • 11111111
    • abcdefg
    • qqqqqq
    • 12321
    • 0123456789
    • 987654321
    • 87654321
    • 0123456
    • 54321
    • harrypotter
    • 0987654321
    • 012345678
    • qwertyui
    • qwertyu
    • qwerty
    • qwert
    • brentcorrigan
    • necromancer
    • 1234567890
    • 123456789
    • 12345678
    • 1234567
    • 12345
    • login
    • skynet
    • computer
    • internet
    • radmin
    • microsoft
    • billgates
    • Administrator
    • administrator
    • Admin
    • 123456
    • 111111
    • admin
  • This routine of sending PING requests to the IP addresses may cause denial of service (DoS) and heavy network traffic.
  • It may then save a copy, install and execute itself on the machine as %System%\ipz2.exe.
  • It uses port 689 to communicate between machines infected with this backdoor. This malicious file builds a peer-to-peer network which may then receive and send commands from/to other infected machines/malicious networks to download and execute other malicious files.

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

under testing

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Identify and terminate files detected as WORM_BIZOME.D

[ Learn More ]
  1. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  2. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
    • IPZ2

Step 4

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
    • {malware path and filename} = {malware path and filename}:*:Enabled:ipz

Step 5

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  •  %User Profile%\IPZ2

Step 6

Scan your computer with your Trend Micro product to delete files detected as WORM_BIZOME.D. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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