arrow_back
search
close

BKDR64_WINNTI.G

June 12, 2014
 Analysis by: Jaime Benigno Reyes
 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: Backdoor

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This backdoor 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.

It does not have any propagation routine.

It executes commands from a remote malicious user, effectively compromising the affected system.

It retrieves specific information from the affected system.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

167,936 bytes

File Type:

DLL

Memory Resident:

No

Initial Samples Received Date:

26 May 2014

Payload:

Compromises system security

Arrival Details

This backdoor 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.

Other System Modifications

This backdoor adds the following registry entries as part of its installation routine:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Control\WMI
lpstatus = "{hex value}"

Propagation

This backdoor does not have any propagation routine.

Backdoor Routine

This backdoor executes the following commands from a remote malicious user:

  • Create, start or terminate processes and services
  • Download and execute arbitrary files
  • Enumerate, modify or create registry entries
  • Create folders
  • Enumerate files

Information Theft

This backdoor retrieves the following information from the affected system:

  • Dhcp IP Address
  • Dhcp Subnet Mask
  • Dhcp Default Gateway
  • IP Address
  • Subnet Mask
  • Default Gateway

Other Details

This backdoor requires its main component to successfully perform its intended routine.

NOTES:
This malware is used by other malware to perform backdoor and information theft routines.

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.820.01

FIRST VSAPI PATTERN DATE:

26 May 2014

VSAPI OPR PATTERN File:

10.821.00

VSAPI OPR PATTERN Date:

27 May 2014

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 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\SYSTEM\CurrentControlSet\Control\WMI
    • lpstatus = "{hex value}"

Step 3

Scan your computer with your Trend Micro product to delete files detected as BKDR64_WINNTI.G. 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.


Did this description help? Tell us how we did.