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

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It disables Task Manager, Registry Editor, and Folder Options.

  TECHNICAL DETAILS

File Size: 502,797 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 19 Dec 2013

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan creates the following folders:

  • %Program Files%\Adobe\Adobe Dreamweaver CS2
  • %Program Files%\Adobe\Photoshop CSX
  • %Program Files%\Tencent
  • %Program Files%\Tencent\QQPlayer

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)

Other System Modifications

This Trojan modifies the following file(s):

  • %Windows%\inf\intl.PNF

(Note: %Windows% is the Windows folder, which is usually C:\Windows.)

It deletes the following files:

  • %Windows%\fonts\msgothic.ttf
  • %Windows%\fonts\msuigoth.ttf
  • %Windows%\fonts\MSMINCHO.TTF
  • %Windows%\fonts\Gulim.ttf
  • %Windows%\fonts\Gulimche.ttf
  • %Windows%\fonts\Dotum.ttf
  • %Windows%\fonts\Batang.ttf
  • %Windows%\fonts\Gungsuh.ttf
  • %Windows%\fonts\Simsun.ttf
  • %Windows%\fonts\nsimsun.ttf
  • %Windows%\fonts\MingLiU.ttf
  • %Windows%\fonts\pmingliu.ttf
  • %System%\SET1A.tmp
  • %System%\kbd101b.dll
  • %System%\SET20.tmp
  • %System%\kbd101c.dll
  • %System%\SET26.tmp
  • %System%\kbd103.dll
  • %System%\SET2C.tmp
  • %System%\kbd106.dll
  • %System%\SET32.tmp
  • %System%\kbdjpn.dll
  • %System%\SET38.tmp
  • %System%\kbdkor.dll

(Note: %Windows% is the Windows folder, which is usually C:\Windows.. %System% is the Windows system folder, which is usually C:\Windows\System32.)

It adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU

HKEY_CLASSES_ROOT\.lllll

HKEY_CLASSES_ROOT\nnnnnnn

HKEY_CLASSES_ROOT\nnnnnnn\DefaultIcon

HKEY_CLASSES_ROOT\nnnnnnn\CLSID

HKEY_CLASSES_ROOT\nnnnnnn\shell

HKEY_CLASSES_ROOT\nnnnnnn\shell\
open

HKEY_CLASSES_ROOT\nnnnnnn\shell\
open\command

HKEY_CLASSES_ROOT\nnnnnnn\shellex\
IconHandler

HKEY_CLASSES_ROOT\nnnnnnn\shellex\
ContextMenuHandlers

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
HideDesktopIcons\ClassicStartMenu

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
HideDesktopIcons\NewStartPanel

HKEY_CLASSES_ROOT\lnkfile\shell\
open\command

HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\
shell

HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\
shell\????

HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\
shell\????\Command

HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\
shell\??(&R)\Command

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Size = "a"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
InitHits = "64"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Factor = "14"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International
W2KLpk = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
nnnnnnn\shell\open
CLSID = "{FBF23B40-E3F0-101B-8488-00AA003E56F8}"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
HideDesktopIcons\ClassicStartMenu
{871C5380-42A0-1069-A2EA-08002B30309D} = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
HideDesktopIcons\NewStartPanel
{871C5380-42A0-1069-A2EA-08002B30309D} = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}
InfoTip = "@shdoclc.dll,-880"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\shell\
????
MUIVerb = "@shdoclc.dll,-10241"

It modifies the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
StartPage
Favorites = "{random values}"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.lnk\ShellNew
Command = "rundll32.exe appwiz.cpl,NewLinkHere %1"

(Note: The default value data of the said registry entry is rundll32.exe appwiz.cpl,NewLinkHere %1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lnkfile
EditFlags = "1"

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}
LocalizedString = "@shdoclc.dll,-880"

(Note: The default value data of the said registry entry is {random values}.)

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\InProcServer32
ThreadingModel = "Apartment"

(Note: The default value data of the said registry entry is Apartment.)

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\ShellFolder
Attributes = "0"

(Note: The default value data of the said registry entry is 20180000.)

It creates the following registry entry(ies) to disable Task Manager, Registry Tools and Folder Options:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoInternetIcon = "1"

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lnkfile\shell\open\
command

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lnkfile\shell\open

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lnkfile\shell

Dropping Routine

This Trojan drops the following files:

  • %Program Files%\Adobe\Adobe Dreamweaver CS2\bbbbbbb.jse
  • %Program Files%\Microsoft Office\Office12\fffffff.jse
  • %Program Files%\Adobe\Photoshop CSX\zzzzzzz.jse
  • %Program Files%\Adobe\Photoshop CSX\tao.ico
  • %User Temp%\ÍøÖ·Ö®¼Ò.tmp
  • %User Temp%\ÌÔ±¦Ãëɱ.tmp
  • %System%\SET17.tmp
  • %System%\SET1D.tmp
  • %System%\SET23.tmp
  • %System%\SET29.tmp
  • %System%\SET2F.tmp
  • %System%\SET35.tmp
  • %Program Files%\Tencent\QQPlayer\s.cmd
  • %Program Files%\Tencent\QQPlayer\1.cmd
  • %Program Files%\Adobe\Photoshop CSX\ddddddd.jse
  • %System%\SET1A.tmp
  • %System%\SET20.tmp
  • %System%\SET26.tmp
  • %System%\SET2C.tmp
  • %System%\SET32.tmp
  • %System%\SET38.tmp

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %System% is the Windows system folder, which is usually C:\Windows\System32.)

This report is generated via an automated analysis system.

  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

Enable Registry Editor, Task Manager, and Folder options

[ Learn More ]
By doing this step, you also enable other applications/programs disabled by this malware/grayware/spyware.

Step 3

Delete this registry key

[ 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\Internet Explorer\International
    • CpMRU
  • In HKEY_CLASSES_ROOT
    • .lllll
  • In HKEY_CLASSES_ROOT
    • nnnnnnn
  • In HKEY_CLASSES_ROOT\nnnnnnn
    • DefaultIcon
  • In HKEY_CLASSES_ROOT\nnnnnnn
    • CLSID
  • In HKEY_CLASSES_ROOT\nnnnnnn
    • shell
  • In HKEY_CLASSES_ROOT\nnnnnnn\shell
    • open
  • In HKEY_CLASSES_ROOT\nnnnnnn\shell\open
    • command
  • In HKEY_CLASSES_ROOT\nnnnnnn\shellex
    • IconHandler
  • In HKEY_CLASSES_ROOT\nnnnnnn\shellex
    • ContextMenuHandlers
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons
    • ClassicStartMenu
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons
    • NewStartPanel
  • In HKEY_CLASSES_ROOT\lnkfile\shell\open
    • command
  • In HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}
    • shell
  • In HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\shell
    • ????
  • In HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\shell\????
    • Command
  • In HKEY_CLASSES_ROOT\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\shell\??(&R)
    • Command

Step 4

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\Internet Explorer\International\CpMRU
    • Enable = "1"
  • In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
    • Size = "a"
  • In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
    • InitHits = "64"
  • In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
    • Factor = "14"
  • In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International
    • W2KLpk = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\nnnnnnn\shell\open
    • CLSID = "{FBF23B40-E3F0-101B-8488-00AA003E56F8}"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\ClassicStartMenu
    • {871C5380-42A0-1069-A2EA-08002B30309D} = "1"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\HideDesktopIcons\NewStartPanel
    • {871C5380-42A0-1069-A2EA-08002B30309D} = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}
    • InfoTip = "@shdoclc.dll,-880"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\shell\????
    • MUIVerb = "@shdoclc.dll,-10241"

Step 5

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\Windows\CurrentVersion\Explorer\StartPage
    • From: Favorites = "{random values}"
      To: Favorites = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.lnk\ShellNew
    • From: Command = "rundll32.exe appwiz.cpl,NewLinkHere %1"
      To: Command = ""rundll32.exe appwiz.cpl,NewLinkHere %1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lnkfile
    • From: EditFlags = "1"
      To: EditFlags = ""1""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}
    • From: LocalizedString = "@shdoclc.dll,-880"
      To: LocalizedString = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\InProcServer32
    • From: ThreadingModel = "Apartment"
      To: ThreadingModel = ""Apartment""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{1f4de370-d627-11d1-ba4f-00a0c91eedba}\ShellFolder
    • From: Attributes = "0"
      To: Attributes = ""20180000""

Step 6

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.
  • %Program Files%\Adobe\Adobe Dreamweaver CS2\bbbbbbb.jse
  • %Program Files%\Microsoft Office\Office12\fffffff.jse
  • %Program Files%\Adobe\Photoshop CSX\zzzzzzz.jse
  • %Program Files%\Adobe\Photoshop CSX\tao.ico
  • %User Temp%\ÍøÖ·Ö®¼Ò.tmp
  • %User Temp%\ÌÔ±¦Ãëɱ.tmp
  • %System%\SET17.tmp
  • %System%\SET1D.tmp
  • %System%\SET23.tmp
  • %System%\SET29.tmp
  • %System%\SET2F.tmp
  • %System%\SET35.tmp
  • %Program Files%\Tencent\QQPlayer\s.cmd
  • %Program Files%\Tencent\QQPlayer\1.cmd
  • %Program Files%\Adobe\Photoshop CSX\ddddddd.jse
  • %System%\SET1A.tmp
  • %System%\SET20.tmp
  • %System%\SET26.tmp
  • %System%\SET2C.tmp
  • %System%\SET32.tmp
  • %System%\SET38.tmp

Step 7

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.
  • %Program Files%\Adobe\Adobe Dreamweaver CS2
  • %Program Files%\Adobe\Photoshop CSX
  • %Program Files%\Tencent
  • %Program Files%\Tencent\QQPlayer

Step 8

Scan your computer with your Trend Micro product to delete files detected as TROJ_PHIRES.AE. 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 9

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.

    • %Windows%\inf\intl.PNF

Step 10

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.

  • %Windows%\fonts\msgothic.ttf
  • %Windows%\fonts\msuigoth.ttf
  • %Windows%\fonts\MSMINCHO.TTF
  • %Windows%\fonts\Gulim.ttf
  • %Windows%\fonts\Gulimche.ttf
  • %Windows%\fonts\Dotum.ttf
  • %Windows%\fonts\Batang.ttf
  • %Windows%\fonts\Gungsuh.ttf
  • %Windows%\fonts\Simsun.ttf
  • %Windows%\fonts\nsimsun.ttf
  • %Windows%\fonts\MingLiU.ttf
  • %Windows%\fonts\pmingliu.ttf
  • %System%\SET1A.tmp
  • %System%\kbd101b.dll
  • %System%\SET20.tmp
  • %System%\kbd101c.dll
  • %System%\SET26.tmp
  • %System%\kbd103.dll
  • %System%\SET2C.tmp
  • %System%\kbd106.dll
  • %System%\SET32.tmp
  • %System%\kbdjpn.dll
  • %System%\SET38.tmp
  • %System%\kbdkor.dll

Step 11

Restore these deleted registry keys/values from backup

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

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lnkfile\shell\open
    • command
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lnkfile\shell
    • open
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lnkfile
    • shell


Did this description help? Tell us how we did.