Worm/Zotob.E - Worm

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Summary

Full description

Statistics

Virus:	Worm/Zotob.E
Date discovered:	16/08/2005
Type:	Worm
In the wild:	Yes
Reported Infections:	Medium
Distribution Potential:	Medium
Damage Potential:	Medium
Static file:	Yes
File size:	10.366 Bytes
MD5 checksum:	7a67f7a8c844820c1bae3ebf720c1cd9
VDF version:	6.31.1.128

General Method of propagation:
   • Local network

Alias:
   • Symantec: W32.Zotob.E
   • Mcafee: W32/Bozori.worm.a!CME-540
   • Kaspersky: Net-Worm.Win32.Bozori.a
   • TrendMicro: WORM_RBOT.CBQ
   • Sophos: W32/Tpbot-A
   • Panda: W32/IRCbot.KC.worm
   • VirusBuster: I-Worm.Zotob.C
   • Eset: Win32/Bozori.A worm
   • Bitdefender: Win32.Worm.Zotob.D

Platform / OS:
   • Windows 2000

Side effects:
   • Registry modification
   • Makes use of software vulnerability

Files It copies itself to the following location:
• %SYSDIR%\wintbp.exe

Registry The following registry key is added in order to run the process after reboot:

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
• Wintbp" = "%SYSDIR%\wintbp.exe"

Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below.

Exploit:
It makes use of the following Exploit:
– MS05-039 (Vulnerability in Plug and Play)

IP address generation:
It creates random IP addresses and tries to establish a connection with them.

Infection process:
Creates a TFTP script on the compromised machine in order to download the malware to the remote location.

IRC To deliver system information and to provide remote control it connects to the following IRC Server:

Server: 72.20.27.**********
Port: 8080
Channel: #tbp
Nickname: %random character string%

Backdoor The following port is opened:

– %SYSDIR%\wintbp.exe on UDP port 69 in order to provide a TFTP server.

Miscellaneous Mutex:
It creates the following Mutex:
• wintbp.exe

See a brief description here.

Description inserted by Oliver Auerbach on Wed, 17 Aug 2005 02:17 (GMT+1)
Description updated by Oliver Auerbach on Fri, 19 Aug 2005 15:49 (GMT+1)

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