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Threat Encyclopedia

TROJ_FAKEAV.EHM


ALIASES:

Rogue:Win32/Winwebsec (Microsoft); Generic BackDoor.abd (McAfee); Adware.CWSIEFeats (Symantec); Trojan-Ransom.Win32.Gimemo.aoel (Kaspersky); Lookslike.Win32.Cbeplay.p (v) (Sunbelt); Trojan horse Generic29.ANPS (AVG)

PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

OVERALL RISK RATING:
DAMAGE POTENTIAL:
DISTRIBUTION POTENTIAL:
REPORTED INFECTION:

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted:

  • In the wild: Yes

OVERVIEW

TECHNICAL DETAILS

SOLUTION

Minimum Scan Engine:

9.300

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Restart in Safe Mode

[ Learn More ]

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.


  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • bee8695a139c2cb.exe = "%Application Data%\bee8695a139c2cb.exe"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows NT
    • BuildVersion = "0"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows NT
    • BuildNumber = "0"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    • GlobalUserOffline = "0"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows NT
    • FrameworkDetails = "1"

Step 4

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.


  • In HKEY_CURRENT_USER\Software\Microsoft\GDIPlus
    • From: FontCachePath = "%Application Data%"
      To: FontCachePath = ""%User Profile%\Local Settings\Application Data""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
    • From: Name = "bee8695a139c2cb.exe"
      To: Name = ""iexplore.exe""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
    • From: ID = "5425311"
      To: ID = ""41107b81""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Direct3D\MostRecentApplication
    • From: Name = "bee8695a139c2cb.exe"
      To: Name = ""vfp6.exe""

Step 5

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %System%\drivers\9f0e.sys
  • %Start Menu%\Programs\Win 8 Security System\Launch Win 8 Security System.lnk
  • %Start Menu%\Programs\Win 8 Security System\Buy Win 8 Security System.lnk
  • %Desktop%\Buy Win 8 Security System.lnk
  • %User Temp%\VGX21.tmp
  • %User Temp%\VGX25.tmp
  • %User Temp%\VGX29.tmp
  • %User Temp%\VGX2D.tmp
  • %User Temp%\VGX31.tmp
  • %User Temp%\VGX35.tmp
  • %User Temp%\VGX39.tmp
  • %User Temp%\VGX3D.tmp

Step 6

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %Start Menu%\Programs\New Folder (567)
  • %Desktop%\New Folder (552)
  • %Start Menu%\Programs\Win 8 Security System

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_FAKEAV.EHM. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 8

Restore deleted/modified files and/or registry entries from backup

*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

    • %Application Data%\GDIPFONTCACHEV1.DAT

Step 9

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %Application Data%\bee8695a139c2cb.exe:Zone.Identifier
  • %Start Menu%\Programs\Win 8 Security System\Uninstall Win 8 Security System.lnk
  • %Desktop%\Win 8 Security System.lnk
  • %Desktop%\Win 8 Security System Order Information Page.lnk
  • %User Temp%\ae3840d3.tmp


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