Modified by: Jimelle Monteser
ALIASES:

Crossrider (fs) (Sunbelt), Adware/CrossRider.A.1090 (Antivir), a variant of Win32/Toolbar.CrossRider.V application (NOD32), AdWare.Lyckriks (Ikarus)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This adware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It arrives as a component bundled with malware/grayware packages.

  TECHNICAL DETAILS

File Size: 624,128 bytes
File Type: DLL
Memory Resident: Yes
Initial Samples Received Date: 07 May 2014

Arrival Details

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

It arrives as a component bundled with malware/grayware packages.

Installation

This adware drops the following copies of itself into the affected system:

  • %User Temp%\~nsu.tmp\Au_.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It creates the following folders:

  • %User Temp%\~nsu.tmp

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Autostart Technique

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

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
InprocServer32
Default = "{malware path}\{malware filename}.dll"

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
InprocServer32
Default = "{malware path}\{malware filename}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\InprocServer32
Default = "{malware path}\{malware filename}.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\InprocServer32
Default = "{malware path}\{malware filename}.dll"

Other System Modifications

This adware adds the following registry keys:

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO\CLSID

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO\CurVer

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO.1

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO.1\CLSID

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox\CLSID

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox\CurVer

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox.1

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox.1\CLSID

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
Implemented Categories

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
InprocServer32

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
ProgID

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
Programmable

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
TypeLib

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
VersionIndependentProgID

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
InprocServer32

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
ProgID

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
Programmable

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
TypeLib

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
VersionIndependentProgID

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
ProxyStubClsid

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
ProxyStubClsid32

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
TypeLib

HHKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
ProxyStubClsid

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
ProxyStubClsid32

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
TypeLib

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0\0

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0\0\win32

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0\FLAGS

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0\HELPDIR

HKEY_CURRENT_USER\Software\Plus-HD-8.1

HKEY_CURRENT_USER\Software\Plus-HD-8.1\
Log

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO\CurVer

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO.1

KEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO.1\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox\CurVer

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox.1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox.1\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\Implemented Categories

KEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\Implemented Categories\
{59fb2056-d625-48d0-a944-1a85b5ab2640}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\VersionIndependentProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\VersionIndependentProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\ProxyStubClsid

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\ProxyStubClsid32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\ProxyStubClsid

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\ProxyStubClsid32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
0\win32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
FLAGS

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
HELPDIR

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{11111111-1111-1111-1111-110511111108}

It adds the following registry entries:

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO
Default = "CrossriderApp0051108"

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO\CLSID
Default = "{11111111-1111-1111-1111-110511111108}"

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO\CurVer
Default = "CrossriderApp0051108"

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO.1
Default = "CrossriderApp0051108"

HKEY_CLASSES_ROOT\CrossriderApp0051108.BHO.1\CLSID
Default = "{11111111-1111-1111-1111-110511111108}"

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox
Default = "CrossriderApp0051108.Sandbox"

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox\CLSID
Default = "{22222222-2222-2222-2222-220522112208}"

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox\CurVer
Default = "CrossriderApp0051108.Sandbox"

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox.1
Default = "CrossriderApp0051108.Sandbox"

HKEY_CLASSES_ROOT\CrossriderApp0051108.Sandbox.1\CLSID
Default = "{22222222-2222-2222-2222-220522112208}"

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}
Default = "Plus-HD-8.1"

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
Implemented Categories
Default = ""

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}
Default = ""

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
ProgID
Default = "CrossriderApp0051108.BHO.1"

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_CLASSES_ROOT\CLSID\{11111111-1111-1111-1111-110511111108}\
VersionIndependentProgID
Default = "CrossriderApp0051108"

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}
Default = "CrossriderApp0051108.Sandbox"

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
ProgID
Default = "CrossriderApp0051108.Sandbox.1"

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_CLASSES_ROOT\CLSID\{22222222-2222-2222-2222-220522112208}\
VersionIndependentProgID
Default = "CrossriderApp0051108.Sandbox"

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}
Default = "ICrossriderBHO"

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
ProxyStubClsid
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
ProxyStubClsid32
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_CLASSES_ROOT\Interface\{55555555-5555-5555-5555-550555115508}\
TypeLib
Version = "1.0"

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}
Default = "ISandBox"

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
ProxyStubClsid
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
ProxyStubClsid32
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_CLASSES_ROOT\Interface\{66666666-6666-6666-6666-660566116608}\
TypeLib
Version = "1.0"

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0
Default = "CrossriderApp0051108 Type Library"

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0\FLAGS
Default = "0"

HKEY_CLASSES_ROOT\TypeLib\{44444444-4444-4444-4444-440544114408}\
1.0\HELPDIR
Default = "{malware path}"

HKEY_CURRENT_USER\Software\Plus-HD-8.1
ActiveAppId = "0"

HKEY_CURRENT_USER\Software\Plus-HD-8.1\
Log
{filename} = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO
Default = "CrossriderApp0051108"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO\CLSID
Default = "{11111111-1111-1111-1111-110511111108}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO\CurVer
Default = "CrossriderApp0051108"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO.1
Default = "CrossriderApp0051108"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.BHO.1\CLSID
Default = "{11111111-1111-1111-1111-110511111108}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox
Default = "CrossriderApp0051108.Sandbox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox\CLSID
Default = "{22222222-2222-2222-2222-220522112208}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox\CurVer
Default = "CrossriderApp0051108.Sandbox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox.1
Default = "CrossriderApp0051108.Sandbox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CrossriderApp0051108.Sandbox.1\CLSID
Default = "{22222222-2222-2222-2222-220522112208}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}
Default = "Plus-HD-8.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\Implemented Categories
Default = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\Implemented Categories\
{59fb2056-d625-48d0-a944-1a85b5ab2640}
Default = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\ProgID
Default = "CrossriderApp0051108.BHO.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{11111111-1111-1111-1111-110511111108}\VersionIndependentProgID
Default = "CrossriderApp0051108"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}
Default = "CrossriderApp0051108.Sandbox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\ProgID
Default = "CrossriderApp0051108.Sandbox.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{22222222-2222-2222-2222-220522112208}\VersionIndependentProgID
Default = "CrossriderApp0051108.Sandbox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}
Default = "ICrossriderBHO"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\ProxyStubClsid
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\ProxyStubClsid32
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{55555555-5555-5555-5555-550555115508}\TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}
Default = "ISandBox"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\ProxyStubClsid
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\ProxyStubClsid32
Default = "{00020424-0000-0000-C000-000000000046}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\TypeLib
Default = "{44444444-4444-4444-4444-440544114408}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{66666666-6666-6666-6666-660566116608}\TypeLib
Version = "1.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0
Default = "CrossriderApp0051108 Type Library"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
0\win32
Default = "{malware path}\1.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
FLAGS
Default = "0"

HHKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{44444444-4444-4444-4444-440544114408}\1.0\
HELPDIR
Default = "{malware path}"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{11111111-1111-1111-1111-110511111108}
Default = "CrossriderApp0051108"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{11111111-1111-1111-1111-110511111108}
NoExplorer = 1

Dropping Routine

This adware drops the following files:

  • %User Temp\Plus-HD-8.1Uninstaller_1399662010.log

Other Details

This adware connects to the following possibly malicious URL:

  • http://{BLOCKED}ats.{BLOCKED}atsdata.com/apps.gif?action=forceduninstall&browser=ie&browserver=X&ver=1_34_1_29&bic=&app=51108&appver=0&verifier=&os=XP32&arp=0&parent=na&silent=0&procstarttime=1399662010&rnd=1399662014

  SOLUTION

Minimum Scan Engine: 9.700

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 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_CLASSES_ROOT
    • CrossriderApp0051108.BHO
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0051108.BHO.1
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0051108.Sandbox
  • In HKEY_CLASSES_ROOT
    • CrossriderApp0051108.Sandbox.1
  • In HKEY_CLASSES_ROOT\CLSID
    • {11111111-1111-1111-1111-110511111108}
  • In HKEY_CLASSES_ROOT\CLSID
    • {22222222-2222-2222-2222-220522112208}
  • In HKEY_CLASSES_ROOT\Interface
    • {55555555-5555-5555-5555-550555115508}
  • In HKEY_CLASSES_ROOT\Interface
    • {66666666-6666-6666-6666-660566116608}
  • In HKEY_CLASSES_ROOT\TypeLib
    • {44444444-4444-4444-4444-440544114408}
  • In HKEY_CURRENT_USER\Software
    • Plus-HD-8.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • CrossriderApp0051108.BHO
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • CrossriderApp0051108.BHO.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • CrossriderApp0051108.Sandbox
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • CrossriderApp0051108.Sandbox.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • CLSID\{11111111-1111-1111-1111-110511111108}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • CLSID\{22222222-2222-2222-2222-220522112208}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • Interface\{55555555-5555-5555-5555-550555115508}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • Interface\{66666666-6666-6666-6666-660566116608}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • TypeLib\{44444444-4444-4444-4444-440544114408}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
    • {11111111-1111-1111-1111-110511111108}

Step 4

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.
  • %User Temp%\~nsu.tmp

Step 5

Search and delete this file

[ Learn More ]
There may be some 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\Plus-HD-8.1Uninstaller_1399662010.log

Step 6

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


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