Threat Description

Acanze.A

Details

Aliases:Acanze.A, Acanze.A, Acanze
Category:Malware
Type:Worm
Platform:W32

Summary



Acanze.A is simple email worm of Italian origin written in Visual Basic. Due to the coding techiques used, the worm will only work properly under Italian Windows versions.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



Upon execution, Acanze.A will create a hidden, system file named 'login.bat' into %WINDOWS% directory. It will then set a registry key:

" HKLM\Software\Microsoft\Windows\CurrentVersion\Run\msnmsgr = "C:\WINNT\login.bat"

The key allows Windows to start the bat file each time a user logs on.

Under Italian versions of Windows, additional files will be dropped, and the attributes to both file set to hidden, system.

" %WINDOWS%\SYSTEM\HOTPLUG.dll

" C:\Programmi\Windows NT\netapi.dll

The worm will then check whether a connection to an Italian site can be established. If so, it will create e-mail messages containing copy of its body and send them to recipients in Outlook's Contact list.



Detection


Detection for this malware was published on March 8th, 2005 in the following F-Secure Anti-Virus updates:
Detection Type: PC
Database: 2005-03-08_03




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