Overview
Characteristics
System Changes
Files Added
- %SYSTEMDIR%\netlib32.dll
- %SYSTEMDIR%\setups.bak
- c:\documents and settings\all users\templates\wsws~6868.tmp
- c:\documents and settings\%USER%\local settings\temp\b.bat
Registry
The following registry keys are created:
- hkey_local_machine\system\currentcontrolset\services\capapi32
errorcontrol="0"
start="4"
objectname="LocalSystem"
deleteflag="1"
displayname="CAPAPI32"
imagepath="[path to binary]"
type="16"
Symptoms
Method of Infection
It is observed to be dropped by Exploit-TaroDrop that exploits a vulnerability in Ichitaro Document Viewer.
Removal
All Users:
Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:
2.Update to current engine and DAT files for detection and removal.
3.Run a complete system scan.
Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).
1. Please go to the Microsoft Recovery Console and restore a clean MBR.
On windows XP:
Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.
On Windows Vista and 7:
Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.
Variants