W32.Fujacks.CB

July 21, 2009 webmaster Worm, 0

W32.Fujacks.CB is a worm that can be dropped on computers through another threat. W32.Fujacks.CB will propagate on removable USB drives and non-protected network-shared drives.

Type	Worm
Sub-Type	Downloader
Aliases	Trojan.Matem
OS Affected	Windows
Detected By	Symantec

What W32.Fujacks.CB Does?

It will modify Windows Registry and add the following entries:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360hotfix.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360rpt.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safe.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safebox.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DrvAnti.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SetupLD.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\agentsvr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\apvxdwin.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ast.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avcenter.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avengine.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgnt.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avguard.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avltmain.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avtask.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bdagent.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bdwizreg.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\boxmod.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccapp.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccenter.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccevtmgr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccregvfy.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccsetmgr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cqw32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\enc98.EXE\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\extdb.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\frameworkservice.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\frwstub.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\guardfield.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iparmor.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kaccore.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kasmain.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kav32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavstart.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavsvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kavsvcui.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kislnchr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kissvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kmailmon.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\knownsvr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kpfw32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kpfwsvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kregex.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvfw.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvmonxp.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvmonxp.kxp\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvol.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvprescan.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvsrvxp.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvwsc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvxp.kxp\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kwatch.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\livesrv.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcagent.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcdash.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcdetect.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcshield.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mctskshd.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcvsescn.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcvsshld.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mghtml.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\naprdmgr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\navapsvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\navapw32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\navw32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nmain.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32krn.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32kui.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npfmntor.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\oasclnt.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\pavsrv51.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\pfw.exe\”Debugger” = “ntsd -d”
• KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\psctrls.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\psimreal.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\psimsvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\qqdoctormain.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ras.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ravmon.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ravmond.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ravstub.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ravtask.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwcfg.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwmain.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwproxy.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwsrv.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rsagent.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rsmain.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rsnetsvr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rssafety.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstray.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\safebank.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\safeboxtray.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\scan32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\scanfrm.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sched.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\seccenter.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\secnotifier.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\shstat.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\smartup.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sndsrvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\spbbcsvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\symlcsvc.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\tbmon.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\uihost.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ulibcfg.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\updaterui.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\uplive.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vcr32.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vcrmon.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vptray.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vsserv.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\vstskmgr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\webproxy.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\xcommsvr.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\xnlscn.exe\”Debugger” = “ntsd -d”
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\????????.\”Debugger” = “ntsd -d”

The threat will drop the following malicious files:

• %System%\6to4.dll
• %System%\dllcache\6to4.dll
• %System%\drivers\WmiSvc.sys
• %System%\dllcache\systembox.bak

How to Remove W32.Fujacks.CB Manually

1. Restart your computer in SafeMode
- After Power-On the computer, just before Windows start, press F8
- From the selections, Select SafeMode

2. Remove Registry entries that the threat added. You MUST BACKUP YOUR REGISTRY FIRST.
- Click Start > Run
- Type in the field, regedit
- Navigate and look for the registry entries mentioned above and delete if necessary

3. Delete malicious files that the threat added:
- Base on the given location above, browse and delete the file
- If no location is given, click Start>Search> and search for the file.
- If cannot be deleted, press Ctrl+Alt+Del to access Task Manager, see if the file is running in the process. If it is, select the file and click End Process. Perform file delete again.

Protection System windowsclick.com