Remove Malware and Viruses

USBroot malware description and removal detail
Categories:Trojan
Also known as:

[Kaspersky]Trojan.Win32.Kolweb.q,Rootkit.Win32.Agent.io;
[McAfee]Generic RootKit.a,Generic Rootkit.a;
[F-Prot]W32/TrojanX.ACFM,W32/Rootkit.ACR,W32/RootkitX.LA;
[Other]Hacktool.Rootkit,VirTool:WinNT/Smallrk.G,W32/Agent.CWZW,TROJ_KOLWEB.Q,W32/Malware.ANFC,Possible_Strat-6,W32/Rootkit.AMV,TROJ_ROOTKIT.ZPP
Visible Symptoms:
Files in system folders:
[%STARTUP%]\.lnk
[%STARTUP%]\_.lnk
[%SYSTEM%]\drivers\ohciusb.sys
[%SYSTEM%]\drivers\ohciusb.syt
[%SYSTEM%]\drivers\ohctusb.sys
[%SYSTEM%]\drivers\ohctusb.syt
[%SYSTEM%]\drivers\ohdusb.sys
[%SYSTEM%]\msmapibx32.exe

In order to ensure that the USBroot is launched automatically each time the system is booted, the USBroot adds a link to its executable file in the system registry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
[%SYSTEM%]\msmapibx32.exe

Platforms / OS: Windows 95, Windows 98, Windows 98 SE, Windows NT, Windows ME, Windows 2000, Windows XP, Windows 2003, Windows Vista

Detecting USBroot:

Files:
[%STARTUP%]\.lnk
[%STARTUP%]\_.lnk
[%SYSTEM%]\drivers\ohciusb.sys
[%SYSTEM%]\drivers\ohciusb.syt
[%SYSTEM%]\drivers\ohctusb.sys
[%SYSTEM%]\drivers\ohctusb.syt
[%SYSTEM%]\drivers\ohdusb.sys
[%SYSTEM%]\msmapibx32.exe

Registry Keys:
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_ohciusb
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_ohctusb
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_ohdusb
HKEY_LOCAL_MACHINE\system\currentcontrolset\services\ohciusb
HKEY_LOCAL_MACHINE\system\currentcontrolset\services\ohctusb
HKEY_LOCAL_MACHINE\system\currentcontrolset\services\ohdusb

Removing USBroot:

An up-to-date copy of ExterminateIt should detect and prevent infection from USBroot.

If you do not have ExterminateIt and you are worried that you may have infected computer,you could run trial version of ExterminateIt, or remove USBroot manually.

To completely manually remove USBroot malware from your computer,you need to delete the Windows registry keys and registry values, the files and foldersassociated with USBroot.

1. Use Task Manager to terminate the USBroot process.
2. Delete the original USBroot file and folders.
3. Delete the system registry key parameters
4. Update your antivirus databases or buy antivirus software and perform a full scan of the computer.

We recommends that all Internet users
back up any important information on their computers,
enable maximum protection from network attacks and malicious code on their computers,
refrain from executing suspicious programs received from untrustworthy sources.

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