nethfdrv.sys

Wilmaonline LTD.

This adware is a web browser extension that will inject advertising in the browser in the form of unwanted banners and text-links which may link to malware sites and install unwanted software. The file nethfdrv.sys by Wilmaonline has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is part of the Brightcircle group of web-extensions that inject advertisements in the browser.
Publisher:
nethfdrv  (signed by Wilmaonline LTD.)

Product:
nethfdrv

Version:
1.4.3.1 built by: WinDDK

MD5:
318ed57995c374248175956ef6776a38

SHA-1:
634ab0f4fbbf15b889a188216b7f24f08db851cd

SHA-256:
23a04ab90e421823c4f19979dfe33037656d7672f8cd0e52acb56d9d27fc194c

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
12/24/2024 1:45:01 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Brightcircle (M)
17.3.11.11

File size:
45.1 KB (46,160 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2014

Original file name:
nethfdrv.sys

File type:
Driver (Win64 SYS)

Common path:
C:\Windows\System32\drivers\nethfdrv.sys

Digital Signature
Authority:
Thawte, Inc.

Valid from:
7/7/2014 7:00:00 AM

Valid to:
8/7/2015 6:59:59 AM

Subject:
CN=Wilmaonline LTD., O=Wilmaonline LTD., L=Raanana, S=Israel, C=IL

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
2B7DF4C242BFBB654DA05B78A86926AA

File PE Metadata
Compilation timestamp:
7/30/2015 3:53:38 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xC064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, 0E, 51, FF, FF, CC, CC, 38, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, C6, 00, 00, 60, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, C9, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, CA, 00, 00, 00, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9A, CA, 00, 00, 00, 00, 00, 00, 86, CA, 00, 00...
 
[+]

Entropy:
6.3662

Code size:
32 KB (32,768 bytes)

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