McAfee > Theat Center > Virus Detail Page

Overview

This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.

Aliases

• BackDoor.Rasmin

• Net.666

• Troj/Rasmin

• W32.HLLP.Semisoft

• W32/Net666

• W32/Semisoft.59904a

• W95/HLLP.60004

• Win32.HLLP.Semisoft

Characteristics

These are an unusual file infectors which infect files under Windows 95 and Windows NT. The virus creates these 59,904 byte files in the WINDOWS directory:

WINIPX.EXE
WINIPXA.EXE
WINSRVC.EXE
EXPLORE.EXE

The virus infects NOTEPAD.EXE, but saves a renamed copy of it as NOTEPADX.EXE. The virus infects other EXE files as they are executed once the virus is loaded into memory.

Symptoms

Infected files increase in size by 59,904 bytes. The virus makes the following entries in the Registry, which activate the virus when the machine is booted:

[HKLM\SOFTWARE\Micosoft\Windows\CurrentVersion\RunServices] WINIPX = C:\WINDOWS\WINIPX.EXE

[HKLM\SOFTWARE\Micosoft\Windows NT\CurrentVersion\Winlogon] Shell = Explorer.exe, WINIPX.EXE

The virus apparently depends on a network card being installed to work fully, and infect more than the four files mentioned under "Virus Characteristics." The virus may have been intended as a prototype of a "spy" program that would intercept information and send this out via a TCPIP connection. A task "6.666" interferes with normal shutdown. The infected files all have a Notepad Icon when they are visible in Explorer.

Method of Infection

The only way to infect a computer with a file infecting virus is to execute an infected file on the computer. The infected file may come from a multitude of sources including: floppy diskettes, downloads through an online service, network, etc. Once the infected file is executed, the virus may activate.

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 virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.

Aliases

• BackDoor.Rasmin

• Net.666

• Troj/Rasmin

• W32.HLLP.Semisoft

• W32/Net666

• W32/Semisoft.59904a

• W95/HLLP.60004

• Win32.HLLP.Semisoft

Characteristics

Characteristics -

These are an unusual file infectors which infect files under Windows 95 and Windows NT. The virus creates these 59,904 byte files in the WINDOWS directory:

WINIPX.EXE
WINIPXA.EXE
WINSRVC.EXE
EXPLORE.EXE

The virus infects NOTEPAD.EXE, but saves a renamed copy of it as NOTEPADX.EXE. The virus infects other EXE files as they are executed once the virus is loaded into memory.

Symptoms

Symptoms -

Infected files increase in size by 59,904 bytes. The virus makes the following entries in the Registry, which activate the virus when the machine is booted:

[HKLM\SOFTWARE\Micosoft\Windows\CurrentVersion\RunServices] WINIPX = C:\WINDOWS\WINIPX.EXE

[HKLM\SOFTWARE\Micosoft\Windows NT\CurrentVersion\Winlogon] Shell = Explorer.exe, WINIPX.EXE

The virus apparently depends on a network card being installed to work fully, and infect more than the four files mentioned under "Virus Characteristics." The virus may have been intended as a prototype of a "spy" program that would intercept information and send this out via a TCPIP connection. A task "6.666" interferes with normal shutdown. The infected files all have a Notepad Icon when they are visible in Explorer.

Method of Infection

Method of Infection -

The only way to infect a computer with a file infecting virus is to execute an infected file on the computer. The infected file may come from a multitude of sources including: floppy diskettes, downloads through an online service, network, etc. Once the infected file is executed, the virus may activate.

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