ALIASES:

Trojan.Win32.Generic!BT (Sunbelt)

 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: 1,820,744 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 12 Jun 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\Wilbert
  • %User Profile%\LOCALS~1
  • %User Temp%\nsu3.tmp
  • %Program Files%\Codec-V
  • %System Root%\Documents and Settings\Wilbert
  • %Application Data%\Codec-V
  • %Application Data%\Codec-V\Chrome
  • %User Profile%\CryptnetUrlCache\MetaData
  • %User Profile%\Microsoft\CryptnetUrlCache
  • %User Profile%\CryptnetUrlCache\Content

(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.. %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.)

Autostart Technique

This Trojan registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{11111111-1111-1111-1111-110011041135}

Other System Modifications

This Trojan deletes the following files:

  • %User Temp%\nso1.tmp
  • %User Temp%\nsu3.tmp

(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.)

It adds the following registry keys:

HKEY_CURRENT_USER\Software\Crossrider

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Ext\
PreApproved\{11111111-1111-1111-1111-110011041135}

HKEY_LOCAL_MACHINE\Software\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Ext\PreApproved\{11111111-1111-1111-1111-110011041135}

HKEY_LOCAL_MACHINE\Software\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V

HKEY_CURRENT_USER\Software\Codec-V\
Installer

HKEY_LOCAL_MACHINE\Software\Google\
Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho

HKEY_LOCAL_MACHINE\Software\Wow6432Node\
Google\Chrome\Extensions\
jpnbdefcbnoefmmcpelplabbkfmfhlho

HKEY_CLASSES_ROOT\CrossriderApp0000435.Sandbox.1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.Sandbox.1\CLSID

HKEY_CLASSES_ROOT\CrossriderApp0000435.BHO.1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.BHO.1\CLSID

HKEY_CLASSES_ROOT\CrossriderApp0000435.Sandbox

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.Sandbox\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.Sandbox\CurVer

HKEY_CLASSES_ROOT\CrossriderApp0000435.BHO

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.BHO\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.BHO\CurVer

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}\VersionIndependentProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}\Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}\VersionIndependentProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}\Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}\TypeLib

HKEY_CLASSES_ROOT\CrossriderApp0000435.FBApi.1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.FBApi.1\CLSID

HKEY_CLASSES_ROOT\CrossriderApp0000435.FBApi

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.FBApi\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0000435.FBApi\CurVer

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}\VersionIndependentProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}\Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440044044435}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440044044435}\1.0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440044044435}\1.0\
FLAGS

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440044044435}\1.0\
0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440044044435}\1.0\
0\win32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440044044435}\1.0\
HELPDIR

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550055045535}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550055045535}\ProxyStubClsid

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550055045535}\ProxyStubClsid32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550055045535}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660066046635}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660066046635}\ProxyStubClsid

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660066046635}\ProxyStubClsid32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660066046635}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{77777777-7777-7777-7777-770077047735}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{77777777-7777-7777-7777-770077047735}\ProxyStubClsid

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{77777777-7777-7777-7777-770077047735}\ProxyStubClsid32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{77777777-7777-7777-7777-770077047735}\TypeLib

HKEY_CURRENT_USER\Software\Codec-V\
Log

HKEY_CURRENT_USER\Software\Crossrider\
Testing

HKEY_CURRENT_USER\Software\Codec-V\
Manifest

HKEY_CURRENT_USER\Software\Codec-V\
Plugins

HKEY_CURRENT_USER\Software\Codec-V\
Plugins\13

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Crossrider
Bic = "94CB6609C16C4BFB8AE9E1CF3B86F40EIE"

HKEY_CURRENT_USER\Software\Crossrider
Verifier = "3ea58d80de3bc3c0ebc20b223f4a3671"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
AppName = "Codec-V.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
AppPath = "%Program Files%\Codec-V"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer\Low Rights\ElevationPolicy\
{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
Policy = "3"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V
DisplayName = "Codec-V"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V
DisplayIcon = "%Program Files%\Codec-V\Uninstall.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V
DisplayVersion = "1.15.149.149"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V
Publisher = "Premiumplay"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V
CrPublisherId = "209"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Codec-V
UninstallString = "%Program Files%\Codec-V\Uninstall.exe"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
srcid = "0"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
subid = "0"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
zdata = "0"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
PlatformVersion = "1"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
ScriptVersion = "15"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
FullVersion = "1_15_149_149"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
Folder = "%Program Files%\Codec-V"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
BundledFirefox = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Google\
Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho
path = "%Application Data%\Codec-V\Chrome\Codec-V.crx"

HKEY_LOCAL_MACHINE\SOFTWARE\Google\
Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho
version = "1.17.48"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Google\Chrome\Extensions\
jpnbdefcbnoefmmcpelplabbkfmfhlho
path = "%Application Data%\Codec-V\Chrome\Codec-V.crx"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Google\Chrome\Extensions\
jpnbdefcbnoefmmcpelplabbkfmfhlho
version = "1.17.48"

HKEY_CURRENT_USER\Software\Codec-V\
Installer
BundledChrome = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110011041135}\InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220022042235}\InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{11111111-1111-1111-1111-110011041135}
NoExplorer = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{33333333-3333-3333-3333-330033043335}\InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550055045535}\TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660066046635}\TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{77777777-7777-7777-7777-770077047735}\TypeLib
Version = "1.0"

HKEY_CURRENT_USER\Software\Codec-V\
Log
LogFilesFolder = "%User Profile%\My Documents"

HKEY_CURRENT_USER\Software\Codec-V\
Log
WriteHelperLogFile = "0"

HKEY_CURRENT_USER\Software\Codec-V
HelperRunningVersion = "149"

HKEY_CURRENT_USER\Software\Crossrider\
Testing
IsTesting = "0"

HKEY_CURRENT_USER\Software\Codec-V\
Manifest
Version = "0"

HKEY_CURRENT_USER\Software\Codec-V\
Plugins
PluginsManifestVersion = "0"

HKEY_CURRENT_USER\Software\Codec-V\
Plugins\10
Version = "2"

HKEY_CURRENT_USER\Software\Codec-V\
Plugins\10
Name = "app_435_specific"

HKEY_CURRENT_USER\Software\Codec-V\
Plugins\10
JavaScript = "{random characters}"

HKEY_CURRENT_USER\Software\Codec-V\
Plugins\13
Version = "1"

HKEY_CURRENT_USER\Software\Codec-V\
Plugins\13
Name = "CrossriderAppUtils"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\CA\Certificates\
189271E573FED295A8C130EAF357A20C4A9F115E
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4EFCED9C6BDD0C985CA3C7D253063C5BE6FC620C
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4EF2E6670AC9B5091FE06BE0E5483EAAD6BA32D9
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4C95A9902ABE0777CED18D6ACCC3372D2748381E
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4BA7B9DDD68788E12FF852E1A024204BF286A8F6
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4B421F7515F6AE8A6ECEF97F6982A400A4D9224E
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
47AFB915CDA26D82467B97FA42914468726138DD
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4463C531D7CCC1006794612BB656D3BF8257846F
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
43F9B110D5BAFD48225231B0D0082B372FEF9A54
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
43DDB1FFF3B49B73831407F6BC8B975023D07C50
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
40E78C1D523D1CD9954FAC1A1AB3BD3CBAA15BFC
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
4072BA31FEC351438480F62E6CB95508461EAB2F
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
3F85F2BB4A62B0B58BE1614ABB0D4631B4BEF8BA
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
394FF6850B06BE52E51856CC10E180E882B385CC
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
36863563FD5128C7BEA6F005CFE9B43668086CCE
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
2F173F7DE99667AFA57AF80AA2D1B12FAC830338
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
284F55C41A1A7A3F8328D4C262FB376ED6096F24
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
273EE12457FDC4F90C55E82B56167F62F532E547
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
24BA6D6C8A5B5837A48DB5FAE919EA675C94D217
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
24A40A1F573643A67F0A4B0749F6A22BF28ABB6B
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
23E594945195F2414803B4D564D2A3A3F5D88B8C
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
216B2A29E62A00CE820146D8244141B92511B279
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
209900B63D955728140CD13622D8C687A4EB0085
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
1F55E8839BAC30728BE7108EDE7B0BB0D3298224
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
1331F48A5DA8E01DAACA1BB0C17044ACFEF755BB
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
0B77BEBBCB7AA24705DECC0FBD6A02FC7ABD9B52
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
049811056AFE9FD0F5BE01685AACE6A5D1C4454C
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
0483ED3399AC3608058722EDBC5E4600E3BEF9D7
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
00EA522C8A9C06AA3ECCE0B4FA6CDC21D92E8099
Blob = "{random values}"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
SystemCertificates\AuthRoot\Certificates\
0048F8D37B153F6EA2798C323EF4F318A5624A9E
Blob = "{random values}"

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

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\nse2.tmp
  • %User Temp%\nsu3.tmp\StdUtils.dll
  • %User Temp%\nsu3.tmp\System.dll
  • %User Temp%\nsu3.tmp\nsislog.dll
  • %User Temp%\Codec-VInstaller_1339450254.log
  • %User Temp%\nsu3.tmp\Dialer.dll
  • %User Temp%\nsu3.tmp\nsisos.dll
  • %User Temp%\nsu3.tmp\md5dll.dll
  • %User Temp%\nsu3.tmp\UserInfo.dll
  • %User Temp%\nsu3.tmp\inetc.dll
  • %User Temp%\nsu3.tmp\435_tmp
  • %User Temp%\nsu3.tmp\Processes.dll
  • %Program Files%\Codec-V\Codec-V.exe
  • %Program Files%\Codec-V\Codec-VGui.exe
  • %Program Files%\Codec-V\Codec-V.dll
  • %Program Files%\Codec-V\Codec-V.ico
  • %Program Files%\Codec-V\Uninstall.exe
  • %User Temp%\nsu3.tmp\ExecDos.dll
  • %User Temp%\nsu3.tmp\Codec-V.xpi
  • %Application Data%\Codec-V\Chrome\Codec-V.crx
  • %User Temp%\nsu3.tmp\RemoveFromList.vbs
  • %User Temp%\nsp4.tmp
  • %User Temp%\nsu3.tmp\CleanChromePrefs.vbs
  • %User Temp%\nsa5.tmp
  • %User Profile%\MetaData\135BD6A358680A7BF1CCEC7C0172393D
  • %User Profile%\Content\135BD6A358680A7BF1CCEC7C0172393D
  • %User Profile%\MetaData\2BF68F4714092295550497DD56F57004
  • %User Profile%\Content\2BF68F4714092295550497DD56F57004
  • %User Profile%\MetaData\94308059B57B3142E455B38A6EB92015
  • %User Profile%\Content\94308059B57B3142E455B38A6EB92015
  • %User Temp%\Cab6.tmp
  • %User Temp%\Tar7.tmp

(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.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %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.. %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.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://stats.{BLOCKED}ider.com/installer.gif?{random characters}
  • http://stats.{BLOCKED}ider.com/ie-error.gif?{random characters}

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

Close all opened browser windows

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
    • Crossrider
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Ext\PreApproved
    • {11111111-1111-1111-1111-110011041135}
  • In HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Ext\PreApproved
    • {11111111-1111-1111-1111-110011041135}
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy
    • {9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • Codec-V
  • In HKEY_CURRENT_USER\Software\Codec-V
    • Installer
  • In HKEY_LOCAL_MACHINE\Software\Google\Chrome\Extensions
    • jpnbdefcbnoefmmcpelplabbkfmfhlho
  • In HKEY_LOCAL_MACHINE\Software\Wow6432Node\Google\Chrome\Extensions
    • jpnbdefcbnoefmmcpelplabbkfmfhlho
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0000435.Sandbox.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.Sandbox.1
    • CLSID
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0000435.BHO.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.BHO.1
    • CLSID
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0000435.Sandbox
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.Sandbox
    • CLSID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.Sandbox
    • CurVer
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0000435.BHO
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.BHO
    • CLSID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.BHO
    • CurVer
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    • {11111111-1111-1111-1111-110011041135}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{11111111-1111-1111-1111-110011041135}
    • ProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{11111111-1111-1111-1111-110011041135}
    • VersionIndependentProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{11111111-1111-1111-1111-110011041135}
    • Programmable
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{11111111-1111-1111-1111-110011041135}
    • InprocServer32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{11111111-1111-1111-1111-110011041135}
    • TypeLib
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    • {22222222-2222-2222-2222-220022042235}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{22222222-2222-2222-2222-220022042235}
    • ProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{22222222-2222-2222-2222-220022042235}
    • VersionIndependentProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{22222222-2222-2222-2222-220022042235}
    • Programmable
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{22222222-2222-2222-2222-220022042235}
    • InprocServer32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{22222222-2222-2222-2222-220022042235}
    • TypeLib
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0000435.FBApi.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.FBApi.1
    • CLSID
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0000435.FBApi
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.FBApi
    • CLSID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CrossriderApp0000435.FBApi
    • CurVer
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
    • {33333333-3333-3333-3333-330033043335}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{33333333-3333-3333-3333-330033043335}
    • ProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{33333333-3333-3333-3333-330033043335}
    • VersionIndependentProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{33333333-3333-3333-3333-330033043335}
    • Programmable
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{33333333-3333-3333-3333-330033043335}
    • InprocServer32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{33333333-3333-3333-3333-330033043335}
    • TypeLib
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
    • {44444444-4444-4444-4444-440044044435}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{44444444-4444-4444-4444-440044044435}
    • 1.0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{44444444-4444-4444-4444-440044044435}\1.0
    • FLAGS
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{44444444-4444-4444-4444-440044044435}\1.0
    • 0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{44444444-4444-4444-4444-440044044435}\1.0\0
    • win32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{44444444-4444-4444-4444-440044044435}\1.0
    • HELPDIR
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    • {55555555-5555-5555-5555-550055045535}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{55555555-5555-5555-5555-550055045535}
    • ProxyStubClsid
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{55555555-5555-5555-5555-550055045535}
    • ProxyStubClsid32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{55555555-5555-5555-5555-550055045535}
    • TypeLib
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    • {66666666-6666-6666-6666-660066046635}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{66666666-6666-6666-6666-660066046635}
    • ProxyStubClsid
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{66666666-6666-6666-6666-660066046635}
    • ProxyStubClsid32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{66666666-6666-6666-6666-660066046635}
    • TypeLib
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
    • {77777777-7777-7777-7777-770077047735}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{77777777-7777-7777-7777-770077047735}
    • ProxyStubClsid
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{77777777-7777-7777-7777-770077047735}
    • ProxyStubClsid32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{77777777-7777-7777-7777-770077047735}
    • TypeLib
  • In HKEY_CURRENT_USER\Software\Codec-V
    • Log
  • In HKEY_CURRENT_USER\Software\Crossrider
    • Testing
  • In HKEY_CURRENT_USER\Software\Codec-V
    • Manifest
  • In HKEY_CURRENT_USER\Software\Codec-V
    • Plugins
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins
    • 13

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\Crossrider
    • Bic = "94CB6609C16C4BFB8AE9E1CF3B86F40EIE"
  • In HKEY_CURRENT_USER\Software\Crossrider
    • Verifier = "3ea58d80de3bc3c0ebc20b223f4a3671"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
    • AppName = "Codec-V.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
    • AppPath = "%Program Files%\Codec-V"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{9a5bfd40-08bc-012f-81b7-073cf1b8f7c6}
    • Policy = "3"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Codec-V
    • DisplayName = "Codec-V"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Codec-V
    • DisplayIcon = "%Program Files%\Codec-V\Uninstall.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Codec-V
    • DisplayVersion = "1.15.149.149"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Codec-V
    • Publisher = "Premiumplay"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Codec-V
    • CrPublisherId = "209"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Codec-V
    • UninstallString = "%Program Files%\Codec-V\Uninstall.exe"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • srcid = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • subid = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • zdata = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • PlatformVersion = "1"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • ScriptVersion = "15"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • FullVersion = "1_15_149_149"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • Folder = "%Program Files%\Codec-V"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • BundledFirefox = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho
    • path = "%Application Data%\Codec-V\Chrome\Codec-V.crx"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho
    • version = "1.17.48"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Google\Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho
    • path = "%Application Data%\Codec-V\Chrome\Codec-V.crx"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Google\Chrome\Extensions\jpnbdefcbnoefmmcpelplabbkfmfhlho
    • version = "1.17.48"
  • In HKEY_CURRENT_USER\Software\Codec-V\Installer
    • BundledChrome = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{11111111-1111-1111-1111-110011041135}\InprocServer32
    • ThreadingModel = "Apartment"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{22222222-2222-2222-2222-220022042235}\InprocServer32
    • ThreadingModel = "Apartment"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{11111111-1111-1111-1111-110011041135}
    • NoExplorer = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{33333333-3333-3333-3333-330033043335}\InprocServer32
    • ThreadingModel = "Apartment"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{55555555-5555-5555-5555-550055045535}\TypeLib
    • Version = "1.0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{66666666-6666-6666-6666-660066046635}\TypeLib
    • Version = "1.0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{77777777-7777-7777-7777-770077047735}\TypeLib
    • Version = "1.0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Log
    • LogFilesFolder = "%User Profile%\My Documents"
  • In HKEY_CURRENT_USER\Software\Codec-V\Log
    • WriteHelperLogFile = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V
    • HelperRunningVersion = "149"
  • In HKEY_CURRENT_USER\Software\Crossrider\Testing
    • IsTesting = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Manifest
    • Version = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins
    • PluginsManifestVersion = "0"
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins\10
    • Version = "2"
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins\10
    • Name = "app_435_specific"
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins\10
    • JavaScript = "{random characters}"
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins\13
    • Version = "1"
  • In HKEY_CURRENT_USER\Software\Codec-V\Plugins\13
    • Name = "CrossriderAppUtils"

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\SystemCertificates\CA\Certificates\189271E573FED295A8C130EAF357A20C4A9F115E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EFCED9C6BDD0C985CA3C7D253063C5BE6FC620C
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4EF2E6670AC9B5091FE06BE0E5483EAAD6BA32D9
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4C95A9902ABE0777CED18D6ACCC3372D2748381E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4BA7B9DDD68788E12FF852E1A024204BF286A8F6
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4B421F7515F6AE8A6ECEF97F6982A400A4D9224E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\47AFB915CDA26D82467B97FA42914468726138DD
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4463C531D7CCC1006794612BB656D3BF8257846F
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\43F9B110D5BAFD48225231B0D0082B372FEF9A54
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\43DDB1FFF3B49B73831407F6BC8B975023D07C50
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\40E78C1D523D1CD9954FAC1A1AB3BD3CBAA15BFC
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\4072BA31FEC351438480F62E6CB95508461EAB2F
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\3F85F2BB4A62B0B58BE1614ABB0D4631B4BEF8BA
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\394FF6850B06BE52E51856CC10E180E882B385CC
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\36863563FD5128C7BEA6F005CFE9B43668086CCE
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\317A2AD07F2B335EF5A1C34E4B57E8B7D8F1FCA6
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2F173F7DE99667AFA57AF80AA2D1B12FAC830338
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\284F55C41A1A7A3F8328D4C262FB376ED6096F24
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\273EE12457FDC4F90C55E82B56167F62F532E547
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\24BA6D6C8A5B5837A48DB5FAE919EA675C94D217
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\24A40A1F573643A67F0A4B0749F6A22BF28ABB6B
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\23E594945195F2414803B4D564D2A3A3F5D88B8C
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\216B2A29E62A00CE820146D8244141B92511B279
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\209900B63D955728140CD13622D8C687A4EB0085
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1F55E8839BAC30728BE7108EDE7B0BB0D3298224
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\1331F48A5DA8E01DAACA1BB0C17044ACFEF755BB
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0B77BEBBCB7AA24705DECC0FBD6A02FC7ABD9B52
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\049811056AFE9FD0F5BE01685AACE6A5D1C4454C
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0483ED3399AC3608058722EDBC5E4600E3BEF9D7
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\00EA522C8A9C06AA3ECCE0B4FA6CDC21D92E8099
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0048F8D37B153F6EA2798C323EF4F318A5624A9E
    • From: Blob = "{random values}"
      To: Blob = ""{random values}""

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%\nse2.tmp
  • %User Temp%\nsu3.tmp\StdUtils.dll
  • %User Temp%\nsu3.tmp\System.dll
  • %User Temp%\nsu3.tmp\nsislog.dll
  • %User Temp%\Codec-VInstaller_1339450254.log
  • %User Temp%\nsu3.tmp\Dialer.dll
  • %User Temp%\nsu3.tmp\nsisos.dll
  • %User Temp%\nsu3.tmp\md5dll.dll
  • %User Temp%\nsu3.tmp\UserInfo.dll
  • %User Temp%\nsu3.tmp\inetc.dll
  • %User Temp%\nsu3.tmp\435_tmp
  • %User Temp%\nsu3.tmp\Processes.dll
  • %Program Files%\Codec-V\Codec-V.exe
  • %Program Files%\Codec-V\Codec-VGui.exe
  • %Program Files%\Codec-V\Codec-V.dll
  • %Program Files%\Codec-V\Codec-V.ico
  • %Program Files%\Codec-V\Uninstall.exe
  • %User Temp%\nsu3.tmp\ExecDos.dll
  • %User Temp%\nsu3.tmp\Codec-V.xpi
  • %Application Data%\Codec-V\Chrome\Codec-V.crx
  • %User Temp%\nsu3.tmp\RemoveFromList.vbs
  • %User Temp%\nsp4.tmp
  • %User Temp%\nsu3.tmp\CleanChromePrefs.vbs
  • %User Temp%\nsa5.tmp
  • %User Profile%\MetaData\135BD6A358680A7BF1CCEC7C0172393D
  • %User Profile%\Content\135BD6A358680A7BF1CCEC7C0172393D
  • %User Profile%\MetaData\2BF68F4714092295550497DD56F57004
  • %User Profile%\Content\2BF68F4714092295550497DD56F57004
  • %User Profile%\MetaData\94308059B57B3142E455B38A6EB92015
  • %User Profile%\Content\94308059B57B3142E455B38A6EB92015
  • %User Temp%\Cab6.tmp
  • %User Temp%\Tar7.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.
  • %System Root%\DOCUME~1
  • %System Root%\DOCUME~1\Wilbert
  • %User Profile%\LOCALS~1
  • %User Temp%\nsu3.tmp
  • %Program Files%\Codec-V
  • %System Root%\Documents and Settings\Wilbert
  • %Application Data%\Codec-V
  • %Application Data%\Codec-V\Chrome
  • %User Profile%\CryptnetUrlCache\MetaData
  • %User Profile%\Microsoft\CryptnetUrlCache
  • %User Profile%\CryptnetUrlCache\Content

Step 8

Scan your computer with your Trend Micro product to delete files detected as TROJ_DLOADR.BGI. 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%\nso1.tmp
  • %User Temp%\nsu3.tmp


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