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VIRUS ALERTS - August 12, 2004

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W32/Sdbot-MG

In reply to: VIRUS ALERTS - August 12, 2004

Type Worm

How it spreads Network shares

W32/Sdbot-MG is a worm which attempts to spread to remote network shares. It also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.

W32/Sdbot-MG copies itself to the Windows system folder as WINGMT.EXE and creates entries in the registry at the following locations to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
System Drivers = wingmt.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
System Drivers = wingmt.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
System Drivers = wingmt.exe

W32/Sdbot-MG may also set this registry entry:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\
DisableRegistryTools = 1

W32/Sdbot-MG spreads to network shares with weak passwords as a result of the backdoor Trojan element receiving the appropriate command from a remote user.

http://www.sophos.com/virusinfo/analyses/w32sdbotmg.html

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Troj/Servu-AE

In reply to: VIRUS ALERTS - August 12, 2004

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Troj/Sensode-B

In reply to: VIRUS ALERTS - August 12, 2004

Aliases Backdoor.Sensode
BackDoor-BCT

Troj/Sensode-B is a backdoor Trojan contained within a DLL file, allowing a remote user access to a shell and system information.

When invoked via Rundll32 or similar, Troj/Sensode-B will connect to a remote web server and periodically retrieve a file containing configuration values.

After receiving this file, the Trojan may either start the server listening on a local port, or may initiaiate an outbound connection to a listing client in an attempt to bypass firewall/NAT inbound security.

Upon connection the Trojan requires the password specified in the remote configuration settings. After authentication, a client may run arbitrary commands on the infected computer via a remote shell.

http://www.sophos.com/virusinfo/analyses/trojsensodeb.html

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W32/Sdbot-MC

In reply to: VIRUS ALERTS - August 12, 2004

Aliases W32.Randex.gen
W32/Sdbot.worm.gen.i
Backdoor.SdBot.gen
WORM_SDBOT.BK

W32/Sdbot-MC is a worm which attempts to spread to remote network shares. It also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.

W32/Sdbot-MC copies itself to the Windows system folder as MSGFIX.EXE and creates entries in the registry at the following locations to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Configuration Loader = msgfix.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
Configuration Loader = msgfix.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
Configuration Loader = msgfix.exe

W32/Sdbot-MC spreads to network shares with weak passwords as a result of the backdoor Trojan element receiving the appropriate command from a remote user.



Recovery
Summary Description Recovery

This section tells you how to disinfect this virus.
Please follow the instructions for removing worms.

http://www.sophos.com/virusinfo/analyses/w32sdbotmc.html

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Troj/Isen-B

In reply to: VIRUS ALERTS - August 12, 2004

Type Trojan

Troj/Isen-B is a Trojan that copies itself to the system folder as msnetrpc.exe and sets registry entries under HKLM\SYSTEM\CurrentControlSet\Services\msnetrpc so that it will be run as a service next time the system starts up.

Troj/Isen-B attempts to pass itself off as a provider for Microsofts network RPC services.

http://www.sophos.com/virusinfo/analyses/trojisenb.html

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W32/Sdbot-LW

In reply to: VIRUS ALERTS - August 12, 2004

Aliases W32.Spybot.Worm
W32/Spybot.worm.gen.n
Backdoor.SdBot.gen
WORM_RANDEX.EM

W32/Sdbot-LW is a worm which attempts to spread to remote network shares. It also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.

W32/Sdbot-LW copies itself to the Windows system folder as NTSVXD.EXE and creates entries in the registry at the following locations to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
VxD Driver Initialization = ntsvxd.exe

HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\
VxD Driver Initialization = ntsvxd.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
VxD Driver Initialization = ntsvxd.exe

W32/Sdbot-LW spreads to network shares with weak passwords as a result of the backdoor Trojan element receiving the appropriate command from a remote user and will attempt to log keystrokes and window text to a file for later retrieval by the remote intruder.

http://www.sophos.com/virusinfo/analyses/w32sdbotlw.html

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Troj/Iefeat-K

In reply to: VIRUS ALERTS - August 12, 2004

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Troj/Dloader-AY

In reply to: VIRUS ALERTS - August 12, 2004

Aliases TrojanDownloader.Win32.Petrolin.b

Troj/Dloader-AY is a downloader Trojan.

A machine infected by Troj/Dloader-AY is likely to have other Trojans on the system.



Recovery
Summary Description Recovery Advanced

This section tells you how to disinfect this virus.
Please follow the instructions for removing Trojans.



Advanced
Summary Description Recovery Advanced

This section is for technical experts, who want to know more about this virus.
Troj/Dloader-AY is a downloader Trojan.

When first run, Troj/Dloader-AY will download and run a DLL file msopt.dll to the Windows folder. The DLL file is detected as Troj/Dloader-AZ.

Troj/Dloader-AY may then download and run variants of Troj/Iefeat.

Troj/Dloader-AY may then drop a Windows Script Host and run it. This script is designed to delete the original Trojan file and itself.

http://www.sophos.com/virusinfo/analyses/trojdloaderay.html

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Troj/Dloader-AZ

In reply to: VIRUS ALERTS - August 12, 2004

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Troj/Easydor-F

In reply to: VIRUS ALERTS - August 12, 2004

Aliases Backdoor.Easydor.f
BackDoor-CCH
BKDR_EASYDOOR.F

Troj/Easydor-F is a backdoor Trojan for the Windows platform. The Trojan attempts to connect to various sites, allows others remote access and may steal online banking details.

http://www.sophos.com/virusinfo/analyses/trojeasydorf.html

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Troj/LegMir-KP

In reply to: VIRUS ALERTS - August 12, 2004

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Troj/Ranck-AB

In reply to: VIRUS ALERTS - August 12, 2004

Aliases TrojanProxy.Win32.Ranky.ap

Troj/Ranck-AB is a proxy Trojan that allows a remote intruder to route HTTP traffic through the computer.

Troj/Ranck-AB sets an entry in the registry at the following location so as to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Lan

Troj/Ranck-AB sends information that the infected computer is running to a number of websites.

Troj/Ranck-AB runs continuously in the background listening on a port.

http://www.sophos.com/virusinfo/analyses/trojranckab.html

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