ADW_CROSSRIDER.A

May 06, 2015
 ALIASES:

Adware.Crossid (Symantec); WebToolbar.Win32.CrossRider.lpz (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 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 deletes itself after execution.

  TECHNICAL DETAILS

File Size:

203,736 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

06 May 2015

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.

Other System Modifications

This adware adds the following registry keys:

HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\
21836

HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\
21836\Status

HKEY_LOCAL_MACHINE\Software\InstalledBrowserExtensions\
21836

HKEY_LOCAL_MACHINE\Software\InstalledBrowserExtensions\
21836\Status

It adds the following registry entries:

HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\
21836
69795 = "Ge-ForcePlus v2"

HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\
21836\Status
Installed = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\InstalledBrowserExtensions\
21836
69795 = "Ge-ForcePlus v2"

HKEY_LOCAL_MACHINE\SOFTWARE\InstalledBrowserExtensions\
21836\Status
Installed = "1"

Other Details

This adware connects to the following possibly malicious URL:

  • http://errors.{BLOCKED}ider.com/utility.gif?{random characters}
  • http://errors.{BLOCKED}ider.com/web/gf/all/setup.exe_a
  • http://dl.{BLOCKED}entinputsrv.com/web/gf/all/setup.exe_d
  • http://dl.{BLOCKED}entinputsrv.com/web/gf/all/setup.exe_c
  • http://dl.{BLOCKED}entinputsrv.com/web/gf/all/setup.exe_b
  • http://dl.{BLOCKED}entinputsrv.com/web/gf/all/setup.exe_e
  • http://errors.{BLOCKED}ider.com/web/gf/all/setup.exe_b
  • http://dl.{BLOCKED}entinputsrv.com/web/gf/all/setup.exe_a
  • http://cr-installer-fallback.{BLOCKED}west-2.amazonaws.com/web/gf/all/setup.exe_e
  • http://cr-installer-fallback.{BLOCKED}west-2.amazonaws.com/web/gf/all/setup.exe_c
  • http://cr-installer-fallback.{BLOCKED}west-2.amazonaws.com/web/gf/all/setup.exe_d
  • http://errors.{BLOCKED}ider.com/web/gf/all/setup.exe_c
  • {BLOCKED}.150.249
  • {BLOCKED}175.10
  • {BLOCKED}.162.17

It deletes itself after execution.

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.750

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

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\InstalledBrowserExtensions
    • 21836
  • In HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\21836
    • Status
  • In HKEY_LOCAL_MACHINE\Software\InstalledBrowserExtensions
    • 21836
  • In HKEY_LOCAL_MACHINE\Software\InstalledBrowserExtensions\21836
    • Status

Step 3

Delete this registry value

[ Learn More ]

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

  • In HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\21836
    • 69795 = "Ge-ForcePlus v2"
  • In HKEY_CURRENT_USER\Software\InstalledBrowserExtensions\21836\Status
    • Installed = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\InstalledBrowserExtensions\21836
    • 69795 = "Ge-ForcePlus v2"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\InstalledBrowserExtensions\21836\Status
    • Installed = "1"

Step 4

Scan your computer with your Trend Micro product to delete files detected as ADW_CROSSRIDER.A. 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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