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TROJ_DOWNLOADER_00004dc.TOMA

October 13, 2012
 ALIASES:

TrojanDownloader:Win32/Wintrim (Microsoft); Skintrim.gen.k (McAfee); Trojan.Gen (Symantec); Trojan.Win32.Hrup.bya (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Adware:W32/Wintrim.gen!P (FSecure)

 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.

  TECHNICAL DETAILS

File Size:

7,815,897 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

21 Aug 2012

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:

  • %System Root%\DOCUME~1
  • %System Root%\DOCUME~1\ADMINI~1
  • %User Profile%\LOCALS~1
  • %User Temp%\nsk3.tmp
  • %Program Files%\FunkyEmoticons
  • %Program Files%\FunkyEmoticons\resourcesemoticons
  • %Program Files%\FunkyEmoticons\download
  • %Start Menu%\Programs\FunkyEmoticons
  • %User Profile%\Application Data\FunkyEmoticons
  • %User Profile%\FunkyEmoticons\Userdata

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.. %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.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
funkyemoticons = "%Program Files%\FunkyEmoticons\FunkyEmoticons.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
ikdfcdfs = "%Application Data%\ikdfcdfs.exe ikdfcdfs"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
ewohy = "%Application Data%\ewohy.exe ewohy"

Other System Modifications

This Trojan deletes the following files:

  • %User Temp%\nsk1.tmp
  • %User Temp%\nsk3.tmp
  • %Application Data%\ikdfcdfs_navtmp.dat

(Note: %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.. %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.)

It adds the following registry keys:

HKEY_LOCAL_MACHINE\Software\FunkyEmoticons

HKEY_CURRENT_USER\Software\FunkyEmoticons

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons

HKEY_CURRENT_USER\Software\fcn

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
ewohy

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
nums = "3D3D3DFC4uSxwA"

HKEY_CURRENT_USER\Software\FunkyEmoticons
nums = "3D3D3DFC4uSxwA"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
grpid = "2044"

HKEY_CURRENT_USER\Software\FunkyEmoticons
grpid = "2044"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
installdt = "20120805"

HKEY_CURRENT_USER\Software\FunkyEmoticons
installdt = "20120805"

HKEY_CURRENT_USER\Software\FunkyEmoticons
uai = "http://www.{BLOCKED}moticons.com/congratulation.php?nums=3D3D3DFC4uSxwA&grpid=2044"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
dl_browser = "IE"

HKEY_CURRENT_USER\Software\FunkyEmoticons
dl_browser = "IE"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
dl_hp_url = "http://www.{BLOCKED}lsucher.com/?t=Q120805&s=h"

HKEY_CURRENT_USER\Software\FunkyEmoticons
dl_hp_url = "http://www.{BLOCKED}lsucher.com/?t=Q120805&s=h"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
dl_se_name = "Schnell Sucher"

HKEY_CURRENT_USER\Software\FunkyEmoticons
dl_se_name = "Schnell Sucher"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
dl_se_url = "http://www.{BLOCKED}lsucher.com/result.php?t=Q120805&s=b&keywords={searchTerms}"

HKEY_CURRENT_USER\Software\FunkyEmoticons
dl_se_url = "http://www.{BLOCKED}lsucher.com/result.php?t=Q120805&s=b&keywords={searchTerms}"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
dl_se_icon = "http://www.{BLOCKED}lsucher.com/favicon.ico"

HKEY_CURRENT_USER\Software\FunkyEmoticons
dl_se_icon = "http://www.{BLOCKED}lsucher.com/favicon.ico"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
ss_res = "http://download.{BLOCKED}moticons.com/ss.php?nums=3D3D3DFC4uSxwA&grpid=2044"

HKEY_CURRENT_USER\Software\FunkyEmoticons
ss_res = "http://download.{BLOCKED}moticons.com/ss.php?nums=3D3D3DFC4uSxwA&grpid=2044"

HKEY_CURRENT_USER\Software\FunkyEmoticons
_status = "ok"

HKEY_CURRENT_USER\Software\FunkyEmoticons
uai = "{random characters}"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
sp_id = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
Language = "EN"

HKEY_CURRENT_USER\Software\FunkyEmoticons
Language = "EN"

HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
ApplicationVersionInstall = "1001"

HKEY_CURRENT_USER\Software\FunkyEmoticons
ApplicationVersionInstall = "1001"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
DisplayName = "Funky Emoticons"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
UninstallString = "%Program Files%\FunkyEmoticons\uninst.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
UninstallString2 = "%Program Files%\FunkyEmoticons\uninst.exe /S"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
DisplayIcon = "%Program Files%\FunkyEmoticons\FunkyEmoticons.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
DisplayVersion = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
URLInfoAbout = "http://www.{BLOCKED}moticons.com"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
Publisher = "Favorit Network S.L."

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Funky Emoticons
Language = "1033"

HKEY_CURRENT_USER\Software\FunkyEmoticons
ss_res = "http://download.{BLOCKED}moticons.com/ss.php?nums=3D3D3DFC4uSxwA&grpid=2044&res=2"

HKEY_CURRENT_USER\Software\fcn
gid = "2044"

HKEY_CURRENT_USER\Software\fcn
cnid = "CssX5rHiSlibJ0KP3a4FKA"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs
DisplayName = "Favorit"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs
UninstallString = "%Application Data%\ikdfcdfs.exe -uninstall"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs
NoRemove = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs
NoRepair = "1"

HKEY_CURRENT_USER\Software\fcn
idt = "201208081545"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ewohy
DisplayName = "Favorit"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ewohy
UninstallString = "%Application Data%\ewohy.exe -uninstall"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ewohy
NoRemove = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ewohy
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ewohy
NoRepair = "1"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
Name = "iexplore.exe"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
ID = "4117b81"

(Note: The default value data of the said registry entry is 41107b81.)

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ikdfcdfs

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\nsa2.tmp
  • %User Temp%\nsk3.tmp\modern-header.bmp
  • %User Temp%\nsk3.tmp\modern-wizard.bmp
  • %User Temp%\nsk3.tmp\nsDialogs.dll
  • %User Temp%\nsk3.tmp\System.dll
  • %User Temp%\nsk3.tmp\headeremoticons2.bmp
  • %User Temp%\nsk3.tmp\FavoritDE.rtf
  • %User Temp%\nsk3.tmp\FavoritEN.rtf
  • %User Temp%\nsk3.tmp\FavoritES.rtf
  • %User Temp%\nsk3.tmp\FavoritFR.rtf
  • %User Temp%\nsk3.tmp\FavoritIT.rtf
  • %Application Data%\ikdfcdfs.exe
  • %User Temp%\nsk3.tmp\FindProcDLL.dll
  • %Program Files%\FunkyEmoticons\FunkyEmoticonsDll_new.dll
  • %Program Files%\FunkyEmoticons\FunkyEmoticons_new.exe
  • %Program Files%\FunkyEmoticons\AssertX_new.dll
  • %Program Files%\FunkyEmoticons\MSBSC50_new.DLL
  • %Program Files%\FunkyEmoticons\resourcesemoticons\appconfig.xml
  • %Program Files%\FunkyEmoticons\resourcesemoticons\funkyemoticons_translation_file.xml
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnIn.rgn
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnInNormal.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnInOver.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btn.rgn
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormal.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOver.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormal.gif
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOver.gif
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnBnr.rgn
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormalBnr.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOverBnr.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormalBnr.gif
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOverBnr.gif
  • %Start Menu%\Programs\FunkyEmoticons\FunkyEmoticons.lnk
  • %Start Menu%\Programs\FunkyEmoticons\Uninstall.lnk
  • %Program Files%\FunkyEmoticons\uninst.exe
  • %User Temp%\nsk3.tmp\searchsolverlogo_FR.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_EN.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_DE.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_ES.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_IT.bmp
  • %User Temp%\nsk3.tmp\NSISdl.dll
  • 65904
  • %Application Data%\ikdfcdfs.dat
  • %Application Data%\ikdfcdfs_navps.dat
  • %Application Data%\ikdfcdfs_m2s.xml
  • %Application Data%\ikdfcdfs_m2s.zl
  • %Application Data%\ikdfcdfs_s2m.zl
  • %Application Data%\ikdfcdfs_s2m.xml
  • %Application Data%\ewohy.exe
  • %Application Data%\ikdfcdfs_navup.dat
  • %Application Data%\ewohy.dat
  • %Application Data%\ewohy_navps.dat
  • %Application Data%\ewohy_nav.dat
  • %Application Data%\ewohy_navup.dat

(Note: %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.. %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://download.{BLOCKED}t-network.com/binaries/download.php
  • http://updates.{BLOCKED}-network.com/sa/cpi.php?{random characters}
  • http://updates.{BLOCKED}-network.com/sa/receive_data.php
  • http://updates.{BLOCKED}-network.com/binaries/bin.php?id=0&up=1&fd=1
  • http://updates.{BLOCKED}-network.com/cn/cnconfig.php?vs=&country=&did=&grp=2044&pid=
  • http://updates.{BLOCKED}-network.com/binaries/check.php

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Restart in Safe Mode

[ Learn More ]

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_LOCAL_MACHINE\Software
    • FunkyEmoticons
  • In HKEY_CURRENT_USER\Software
    • FunkyEmoticons
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • Funky Emoticons
  • In HKEY_CURRENT_USER\Software
    • fcn
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • ikdfcdfs
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • ewohy

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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • funkyemoticons = "%Program Files%\FunkyEmoticons\FunkyEmoticons.exe"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • ikdfcdfs = "%Application Data%\ikdfcdfs.exe ikdfcdfs"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • ewohy = "%Application Data%\ewohy.exe ewohy"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • nums = "3D3D3DFC4uSxwA"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • nums = "3D3D3DFC4uSxwA"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • grpid = "2044"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • grpid = "2044"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • installdt = "20120805"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • installdt = "20120805"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • uai = "http://www.{BLOCKED}moticons.com/congratulation.php?nums=3D3D3DFC4uSxwA&grpid=2044"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • dl_browser = "IE"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • dl_browser = "IE"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • dl_hp_url = "http://www.{BLOCKED}lsucher.com/?t=Q120805&s=h"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • dl_hp_url = "http://www.{BLOCKED}lsucher.com/?t=Q120805&s=h"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • dl_se_name = "Schnell Sucher"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • dl_se_name = "Schnell Sucher"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • dl_se_url = "http://www.{BLOCKED}lsucher.com/result.php?t=Q120805&s=b&keywords={searchTerms}"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • dl_se_url = "http://www.{BLOCKED}lsucher.com/result.php?t=Q120805&s=b&keywords={searchTerms}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • dl_se_icon = "http://www.{BLOCKED}lsucher.com/favicon.ico"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • dl_se_icon = "http://www.{BLOCKED}lsucher.com/favicon.ico"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • ss_res = "http://download.{BLOCKED}moticons.com/ss.php?nums=3D3D3DFC4uSxwA&grpid=2044"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • ss_res = "http://download.{BLOCKED}moticons.com/ss.php?nums=3D3D3DFC4uSxwA&grpid=2044"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • _status = "ok"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • uai = "{random characters}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • sp_id = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • Language = "EN"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • Language = "EN"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\FunkyEmoticons
    • ApplicationVersionInstall = "1001"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • ApplicationVersionInstall = "1001"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • DisplayName = "Funky Emoticons"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • UninstallString = "%Program Files%\FunkyEmoticons\uninst.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • UninstallString2 = "%Program Files%\FunkyEmoticons\uninst.exe /S"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • DisplayIcon = "%Program Files%\FunkyEmoticons\FunkyEmoticons.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • DisplayVersion = "1.0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • URLInfoAbout = "http://www.{BLOCKED}moticons.com"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • Publisher = "Favorit Network S.L."
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Funky Emoticons
    • Language = "1033"
  • In HKEY_CURRENT_USER\Software\FunkyEmoticons
    • ss_res = "http://download.{BLOCKED}moticons.com/ss.php?nums=3D3D3DFC4uSxwA&grpid=2044&res=2"
  • In HKEY_CURRENT_USER\Software\fcn
    • gid = "2044"
  • In HKEY_CURRENT_USER\Software\fcn
    • cnid = "CssX5rHiSlibJ0KP3a4FKA"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ikdfcdfs
    • DisplayName = "Favorit"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ikdfcdfs
    • UninstallString = "%Application Data%\ikdfcdfs.exe -uninstall"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ikdfcdfs
    • NoRemove = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ikdfcdfs
    • NoModify = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ikdfcdfs
    • NoRepair = "1"
  • In HKEY_CURRENT_USER\Software\fcn
    • idt = "201208081545"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ewohy
    • DisplayName = "Favorit"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ewohy
    • UninstallString = "%Application Data%\ewohy.exe -uninstall"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ewohy
    • NoRemove = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ewohy
    • NoModify = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ewohy
    • NoRepair = "1"

Step 5

Restore this modified 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_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
    • From: Name = "iexplore.exe"
      To: Name = ""iexplore.exe""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
    • From: ID = "4117b81"
      To: ID = ""41107b81""

Step 6

Search and delete these files

[ Learn More ]
There may be some component files 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.
  • %User Temp%\nsa2.tmp
  • %User Temp%\nsk3.tmp\modern-header.bmp
  • %User Temp%\nsk3.tmp\modern-wizard.bmp
  • %User Temp%\nsk3.tmp\nsDialogs.dll
  • %User Temp%\nsk3.tmp\System.dll
  • %User Temp%\nsk3.tmp\headeremoticons2.bmp
  • %User Temp%\nsk3.tmp\FavoritDE.rtf
  • %User Temp%\nsk3.tmp\FavoritEN.rtf
  • %User Temp%\nsk3.tmp\FavoritES.rtf
  • %User Temp%\nsk3.tmp\FavoritFR.rtf
  • %User Temp%\nsk3.tmp\FavoritIT.rtf
  • %Application Data%\ikdfcdfs.exe
  • %User Temp%\nsk3.tmp\FindProcDLL.dll
  • %Program Files%\FunkyEmoticons\FunkyEmoticonsDll_new.dll
  • %Program Files%\FunkyEmoticons\FunkyEmoticons_new.exe
  • %Program Files%\FunkyEmoticons\AssertX_new.dll
  • %Program Files%\FunkyEmoticons\MSBSC50_new.DLL
  • %Program Files%\FunkyEmoticons\resourcesemoticons\appconfig.xml
  • %Program Files%\FunkyEmoticons\resourcesemoticons\funkyemoticons_translation_file.xml
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnIn.rgn
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnInNormal.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnInOver.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btn.rgn
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormal.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOver.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormal.gif
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOver.gif
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnBnr.rgn
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormalBnr.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOverBnr.bmp
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnNormalBnr.gif
  • %Program Files%\FunkyEmoticons\resourcesemoticons\btnOverBnr.gif
  • %Start Menu%\Programs\FunkyEmoticons\FunkyEmoticons.lnk
  • %Start Menu%\Programs\FunkyEmoticons\Uninstall.lnk
  • %Program Files%\FunkyEmoticons\uninst.exe
  • %User Temp%\nsk3.tmp\searchsolverlogo_FR.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_EN.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_DE.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_ES.bmp
  • %User Temp%\nsk3.tmp\searchsolverlogo_IT.bmp
  • %User Temp%\nsk3.tmp\NSISdl.dll
  • 65904
  • %Application Data%\ikdfcdfs.dat
  • %Application Data%\ikdfcdfs_navps.dat
  • %Application Data%\ikdfcdfs_m2s.xml
  • %Application Data%\ikdfcdfs_m2s.zl
  • %Application Data%\ikdfcdfs_s2m.zl
  • %Application Data%\ikdfcdfs_s2m.xml
  • %Application Data%\ewohy.exe
  • %Application Data%\ikdfcdfs_navup.dat
  • %Application Data%\ewohy.dat
  • %Application Data%\ewohy_navps.dat
  • %Application Data%\ewohy_nav.dat
  • %Application Data%\ewohy_navup.dat

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.
  • %System Root%\DOCUME~1
  • %System Root%\DOCUME~1\ADMINI~1
  • %User Profile%\LOCALS~1
  • %User Temp%\nsk3.tmp
  • %Program Files%\FunkyEmoticons
  • %Program Files%\FunkyEmoticons\resourcesemoticons
  • %Program Files%\FunkyEmoticons\download
  • %Start Menu%\Programs\FunkyEmoticons
  • %User Profile%\Application Data\FunkyEmoticons
  • %User Profile%\FunkyEmoticons\Userdata

Step 8

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_DOWNLOADER_00004dc.TOMA. 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 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.

  • %User Temp%\nsk1.tmp
  • %User Temp%\nsk3.tmp
  • %Application Data%\ikdfcdfs_navtmp.dat

Step 10

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\Microsoft\Windows\CurrentVersion\Uninstall
    • ikdfcdfs


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