Analysis by: Karl Dominguez
 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

Infection Channel: Propagates via network shares

It may be executed using command-line and specific parameters.

It sends ICMP PING requests to random IP addresses and scans for Port 4899 (Radmin Port) to check if those IP addresses have RADMIN service running. Once successful, it uses the following hardcoded list of user names and passwords to gain access to password-protected systems. It then install itself on the machine. It uses Port 310 to communicate between infected systems.

It creates a list of its activities, which it stores in a .TXT file.

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

It is a command line program that may be used to perform certain routines.

  TECHNICAL DETAILS

Ports: TCP port 4899 (RAdmin Port)
File Size: Varies
File Type: PE
Memory Resident: Yes
Initial Samples Received Date: 22 Sep 2010
Payload: Drops files, Steals information

Arrival Details

This worm may arrive via network shares.

It may be dropped by other malware.

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

Installation

This worm drops the following files:

  • %Current%\ipz-db.bin
  • %Current%\log.txt

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\IPZ
Type = 10

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

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ
ErrorControl = 0

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ
ImagePath = {malware path and file name}

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ
DisplayName = Intelligent P2P Zombie

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\IPZ
ObjectName = LocalSystem

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 file name} = {malware path and file name}:*:Enabled:{malware filename}

Backdoor Routine

This worm is a command line program that may be used to perform certain routines.

Other Details

Based on analysis of the codes, it has the following capabilities:

  • Executes using command-line and may have the following parameters:
    • /l, --log - enable logging of activities
    • /i, --install - install its own service
    • /s, --service - restart its own service
    • /r, --remove - remove own service
  • Sends ICMP PING requests to random IP addresses and scans for port 4899 (Radmin Port) to check if those IP addresses have RADMIN service running. Once successful, it uses the following hardcoded list of user names and passwords to gain access to password-protected systems:
    • 0987654321
    • 111111
    • 11111111
    • 121212
    • 12121212
    • 123123
    • 12341234
    • 123456
    • 12345678
    • 123456789
    • 1234567890
    • 1q2w3e
    • 1q2w3e4r
    • 1q2w3e4r5t
    • 654321
    • 87654321
    • aaaaaa
    • aaaaaaaa
    • admin
    • Admin
    • administrator
    • aerial
    • aerodynamics
    • aeroplane
    • alien
    • altera
    • altitude
    • america
    • american
    • anchorite
    • annihilation
    • archer
    • asdfghjk
    • asdfghjkl
    • atmel
    • atmosphere
    • atomic
    • backward
    • battle
    • bender
    • billgates
    • boeing
    • brentcorrigan
    • brutal
    • bullshit
    • burning
    • callofduty
    • cannon
    • cdrom
    • children
    • computer
    • coolface
    • copyleft
    • copyright
    • creative
    • creator
    • darthvader
    • deathcore
    • deathstar
    • debian
    • deltaplane
    • destroy
    • disable
    • display
    • domination
    • doomsday
    • elephant
    • elimination
    • emoboy
    • emokid
    • emperor
    • enable
    • enigma
    • europe
    • evangellion
    • fallout
    • fighter
    • folder
    • forward
    • freedom
    • fuckyou
    • godzilla
    • google
    • gothic
    • grinder
    • guitar
    • happiness
    • happy
    • hardcore
    • harddisk
    • helicopter
    • hippie
    • hitler
    • horishima
    • horizon
    • ignore
    • imageboard
    • income
    • incoming
    • insane
    • internet
    • israel
    • jesus
    • jetpack
    • kamikaze
    • keyboard
    • kremlin
    • latitude
    • lineage2
    • login
    • longtitude
    • lucifer
    • lurkmore
    • machine
    • memory
    • metall
    • microchip
    • microsoft
    • minigun
    • missile
    • monkey
    • motorbike
    • mouse
    • mozilla
    • music
    • negative
    • nekoboy
    • nigger
    • nuclear
    • oracle
    • overmind
    • password
    • people
    • pilotage
    • police
    • positive
    • predator
    • pretty
    • processor
    • propeller
    • prototype
    • qazwsx
    • qazwsxedc
    • qqqqqq
    • qqqqqqqq
    • qweasd
    • qweasdzxc
    • qwerty
    • qwertyui
    • qwertyuiop
    • radmin
    • rastaman
    • reactor
    • receiver
    • revolution
    • rocketman
    • router
    • samael
    • satan
    • sattelite
    • scientology
    • secret
    • secure
    • shadow
    • shcool
    • skynet
    • skywalker
    • smoking
    • solder
    • speaker
    • stalin
    • starcraft
    • stinger
    • sunlight
    • superman
    • supply
    • suxxxx
    • terminator
    • thieft
    • thread
    • thunderbird
    • tolerance
    • topsecret
    • tranciever
    • transmitter
    • trollface
    • ubuntu
    • unknown
    • username
    • utorrent
    • warcraft
    • warhammer
    • washington
    • whitehouse
    • windows
    • wireless
    • xlinx
    • youandme
    • youtube
    • zeitgeist

    It then install itself on the machine. It uses port 310 to communicate between infected systems.
  • Logs the following activities in the file log.txt:
    • (peer_broadcast_link) broadcasting link to {IP}
    • (peer_link_to_self) buddy {IP} kicked due to synchronization error
    • (peer_link_to_self) synchronized link to {IP}
    • (peer_new_buddy) {IP} - added new buddy
    • (peer_new_buddy) {IP} - buddy already in list
    • (peer_new_buddy) {IP} - connection closed
    • (peer_new_buddy) {IP} - trying to connect
    • (peer_process_link_message) linked to new buddy {IP}
    • (peer_process_link_message) synchronized link with {IP}
    • (peer_process_message) new message
    • (peer_process_message) new message accepted
    • (peer_process_poll_message) message delivered to {IP}
    • (peer_process_poll_message) no messages to deliver to {IP}
    • (peer_process_poll_message) {IP} polled his mailbox
    • [{Date and Time}]#{ID} (ACT) connected to {IP}
    • [{Date and Time}]#{ID} (ACT) disconnected from {IP}
    • [{Date and Time}]#{ID} (ACT) failed to connect to {IP}
    • [{Date and Time}]#{ID} (ACT) message delivered to {IP}
    • [{Date and Time}]#{ID} (ACT) message received from {IP}
    • [{Date and Time}]#{ID} (ACT) no messages on {IP}
    • [{Date and Time}]#{ID} (ACT) polling mailbox on {IP}
    • [{Date and Time}]#{ID} (ACT) sending messages to {IP}
    • [{Date and Time}]#{ID} (ACT) trying to connect to {IP}
    • [{Date and Time}]#{ID} (PASS) connection from {IP} closed
    • [{Date and Time}]#{ID} (PASS) LINK from {IP}
    • [{Date and Time}]#{ID} (PASS) message from {IP}
    • [{Date and Time}]#{ID} (PASS) POLL from {IP}
    • [{Date and Time}]#{ID} (PASS) received connection from {IP}

  SOLUTION

Minimum Scan Engine: 8.900

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Restart in Safe Mode

[ Learn More ]

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
    • IPZ

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 file name} = {malware path and file name}:*:Enabled:{malware filename}

Step 5

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %Current%\ipz-db.bin
  • %Current%\log.tx

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as WORM_BIZOME.SMD. 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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