McAfee > Theat Center > Virus Detail Page

Overview

This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Aliases

• BackDoor.NetDevil.11 (DrWeb)

• Backdoor.Netdevil.11.B (Ikarus)

• Backdoor.NetDevil.11.b (KAV/AVP)

• BDS/NetDev.11.B.Srv (Antivir)

• Troj/NetDevil11 (Sophos)

• TROJ_NETDEV.SVR (Trend)

• Win32.NetDevil.11.B (CA)

Characteristics

There are several variants of this trojan, and the specific actions taken are decided by the script kiddie who uses this trojan, so this description is a general guide.

When run, it copies itself to %WINDIR%\SYSTEM\SHELLAPI.EXE, and adds the registry key HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShellApi with the value %WINDIR%\SYSTEM\SHELLAPI.EXE.

Possible actions that could occur are:

• Attempt to terminate the processes of firewall/antivirus/security/etc software.
• Log keystrokes (logfile 'System.dbs' present in C:\%windir%\System)
• Get passwords
• Chat with the victim
• Notify the script kiddie that the victim is online through ICQ, E-Mail, or CGI.
• Download/Rename/Create/Delete files/directories on the victim's system
• Get information about the victim's system
• Open/Close CD-ROM tray
• Hide/Show TaskBar/Mouse Cursor/Clock/Start Button
• Turn on/off Monitor/ScrollLock/CapsLock/NumLock
• Read/Modify the Clipboard/StartPage/Screen
• Shutdown/Power-Off/LogOff Victim's system
• Flip Screen
• Swap Mouse Buttons
• Send victim to specific URL
• Run/Play Executables/WAVs on the victim's system
• Disable registry editing

Symptoms

Files/Registry keys mentioned above.

Method of Infection

Running the trojan EXE file will infect the system.

Removal

All Users :
Script,Batch,Macro and non memory-resident:
Use current engine and DAT files for detection and removal.

PE,Trojan,Internet Worm and memory resident :
Use specified engine and DAT files for detection. To remove, boot to MS-DOS mode or use a boot diskette and use the command line scanner:

Additional Windows ME/XP removal considerations

Users should not trust file icons, particularly when receiving files from others via P2P clients, IRC, email or other mediums where users can share files.

AVERT Recommended Updates :

* Office2000 Updates

* Malformed Word Document Could Enable Macro to Run Automatically (Information/Patch )

* scriptlet.typelib/Eyedog vulnerability patch

* Outlook as an email attachment security update

* Exchange 5.5 post SP3 Information Store Patch 5.5.2652.42 - this patch corrects detection issues with GroupShield

For a list of attachments blocked by the Outlook patch and a general FAQ, visit this link .
Additionally, Network Administrators can configure this update using an available tool - visit this link for more information .

It is very common for macro viruses to disable options within Office applications for example in Word, the macro protection warning commonly is disabled. After cleaning macro viruses, ensure that your previously set options are again enabled.

Variants

Variants

N/A

All Information

Overview -

This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Aliases

• BackDoor.NetDevil.11 (DrWeb)

• Backdoor.Netdevil.11.B (Ikarus)

• Backdoor.NetDevil.11.b (KAV/AVP)

• BDS/NetDev.11.B.Srv (Antivir)

• Troj/NetDevil11 (Sophos)

• TROJ_NETDEV.SVR (Trend)

• Win32.NetDevil.11.B (CA)

Characteristics

Characteristics -

There are several variants of this trojan, and the specific actions taken are decided by the script kiddie who uses this trojan, so this description is a general guide.

When run, it copies itself to %WINDIR%\SYSTEM\SHELLAPI.EXE, and adds the registry key HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShellApi with the value %WINDIR%\SYSTEM\SHELLAPI.EXE.

Possible actions that could occur are:

• Attempt to terminate the processes of firewall/antivirus/security/etc software.
• Log keystrokes (logfile 'System.dbs' present in C:\%windir%\System)
• Get passwords
• Chat with the victim
• Notify the script kiddie that the victim is online through ICQ, E-Mail, or CGI.
• Download/Rename/Create/Delete files/directories on the victim's system
• Get information about the victim's system
• Open/Close CD-ROM tray
• Hide/Show TaskBar/Mouse Cursor/Clock/Start Button
• Turn on/off Monitor/ScrollLock/CapsLock/NumLock
• Read/Modify the Clipboard/StartPage/Screen
• Shutdown/Power-Off/LogOff Victim's system
• Flip Screen
• Swap Mouse Buttons
• Send victim to specific URL
• Run/Play Executables/WAVs on the victim's system
• Disable registry editing

Symptoms

Symptoms -

Files/Registry keys mentioned above.

Method of Infection

Method of Infection -

Running the trojan EXE file will infect the system.

Removal -

Removal -

All Users :
Script,Batch,Macro and non memory-resident:
Use current engine and DAT files for detection and removal.

PE,Trojan,Internet Worm and memory resident :
Use specified engine and DAT files for detection. To remove, boot to MS-DOS mode or use a boot diskette and use the command line scanner:

Additional Windows ME/XP removal considerations

Users should not trust file icons, particularly when receiving files from others via P2P clients, IRC, email or other mediums where users can share files.

AVERT Recommended Updates :

* Office2000 Updates

* Malformed Word Document Could Enable Macro to Run Automatically (Information/Patch )

* scriptlet.typelib/Eyedog vulnerability patch

* Outlook as an email attachment security update

* Exchange 5.5 post SP3 Information Store Patch 5.5.2652.42 - this patch corrects detection issues with GroupShield

For a list of attachments blocked by the Outlook patch and a general FAQ, visit this link .
Additionally, Network Administrators can configure this update using an available tool - visit this link for more information .

It is very common for macro viruses to disable options within Office applications for example in Word, the macro protection warning commonly is disabled. After cleaning macro viruses, ensure that your previously set options are again enabled.

Variants

Variants -

N/A