Analysis by: Byron Jon Gelera
ALIASES:

AdWare.Win32.NetFilter.z (Kaspersky); a variant of Win32/NetFilter.B potentially unsafe (ESET-NOD32)

 PLATFORM:

Windows

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Dropped by other malware

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. It may be manually installed by a user.

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

  TECHNICAL DETAILS

File Size: 46,376 bytes
File Type: SYS
Memory Resident: No
Initial Samples Received Date: 20 Feb 2018

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.

It may be manually installed by a user.

Other Details

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

  SOLUTION

Minimum Scan Engine: 9.850
SSAPI PATTERN File: 1.921.00
SSAPI PATTERN Date: 22 Feb 2018

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

Scan your computer with your Trend Micro product to delete files detected as ADW_NETFILTER.COMPONENT. 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 the following Trend Micro Support pages for more information:


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