Worm/Tutiam.A - Worm

See also

Summary

Full description

Statistics

Virus:	Worm/Tutiam.A
Date discovered:	24/07/2006
Type:	Worm
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Medium
Damage Potential:	Low to medium
Static file:	Yes
File size:	143.360 Bytes
MD5 checksum:	9f2b1ee9a59f56a91a0Ca7b25458e589
VDF version:	6.35.00.180
IVDF version:	6.35.00.220

General Methods of propagation:
   • Email
   • Local network

Aliases:
   • Symantec: W32.Miti@mm
   • Kaspersky: IRC-Worm.Win32.Tutiam.a
   • TrendMicro: WORM_TUTIAM.A
   • VirusBuster: Worm.Tutiam.A
   • Bitdefender: Dropped:Win32.Worm.Tamiami.A

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Drops files
   • Drops a malicious file
   • Registry modification

Right after execution the following information is displayed:

Files It copies itself to the following locations:
   • %WINDIR%\strangler.exe
   • %WINDIR%\Tamiami.wrd
   • %WINDIR%\tamweb\Pictures.exe

It creates the following directories:
   • %WINDIR%\tammail
   • %WINDIR%\tamweb

A section is added to a file.
– To: %drive%:\*.zip With the following contents:
   • SourceCode.exe
     Addons_ENG.exe
     Pictures.exe
     Licence.exe
     ReadMe.exe
     Install.exe
     Quellcode.exe
     Addons.exe
     Bilder.exe
     Lizenz.exe
     LiesMich.exe
     Installation.exe
     (%executed file%)

The following files are created:

– %WINDIR%\tamver.sys
– %WINDIR%\Tamiami.vbs
– %WINDIR%\tamweb\index.htm Detected as: Worm/Tamiami.A

– %WINDIR%\Tamiami.mrc

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

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Tamiami"="%WINDIR%\strangler.exe"

The following registry key is added:

– [HKCU\Identities\%system-dependent%\Software\Microsoft\
   Outlook Express\5.0\Mail]
   • "Warn on Mapi Send"=dword:00000000

The following registry keys are changed:

Deactivate Windows XP Firewall:
– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess]
   New value:
   • "Start"=dword:00000004

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

Server: irc.quake**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

Server: quakenet.under**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

Server: irc.efn**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

Server: icr.under**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

Server: eu.under**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

Server: us.under**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

Server: port80c.se.quake**********
Port: 6667
Server password: %eight-digit random character string%
Channel: #tamiami
Nickname: %eight-digit random character string%
Password: strangler

– Furthermore it has the ability to perform actions such as:
    • connect to IRC server
    • disconnect from IRC server
    • Join IRC channel
    • Start spreading routine

Miscellaneous Checks for an internet connection by contacting the following web site:
• http://update.microsoft.com

Mutex:
It creates the following Mutex:
• Worm.Tamiami v1.3.2 by DiA/RRLF

File details Programming language:
The malware program was written in MS Visual C++.

See a brief description here.

Description inserted by Monica Ghitun on Mon, 24 Jul 2006 13:34 (GMT+1)
Description updated by Andrei Ivanes on Mon, 27 Nov 2006 11:24 (GMT+1)

» About Malware
» About Phishing
» Viruses In the Wild

« back