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tnetfilter2.sys

NetFilter SDK

secretsauce

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file tnetfilter2.sys, “NetFilter SDK TDI Hook Driver (WPP)” by secretsauce has been detected as adware by 2 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “tnetfilter2”.
Publisher:
NetFilterSDK.com  (signed by secretsauce)

Product:
NetFilter SDK

Description:
NetFilter SDK TDI Hook Driver (WPP)

Version:
1.4.3.1 built by: WinDDK

MD5:
59639e53865d5f65d70037339e8456a1

SHA-1:
3d0566614e6702a8018a3f3a0089c205adb77198

SHA-256:
fd9f2771b0f3b89341921fc6aa829cc896c758bf5faff4dda01df14111851907

Scanner detections:
2 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/27/2024 3:30:57 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.Secsau
2015.0.3587

Reason Heuristics
PUP.secretsauce.O
14.8.7.20

File size:
58.7 KB (60,096 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 NetFilterSDK.com

Original file name:
netfilter2.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\tnetfilter2.sys

Digital Signature
Signed by:
secretsauce

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 2:00:00 AM

Valid to:
10/8/2014 1:59:59 AM

Subject:
CN=secretsauce, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=secretsauce, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
4AE20FA715A6AD31570AF66DF284144A

File PE Metadata
OS bitness:
Win64

CTPH (ssdeep):
1536:RaDltS1O+G9IODA2VLcN4W5J0y9/ngJPNJsp:4xtS1dGtMfJ0y9PgJPNJsp

Entry point:
48, 8B, 05, F1, D0, FF, FF, 49, B9, 32, A2, DF, 2D, 99, 2B, 00, 00, 48, 85, C0, 74, 05, 49, 3B, C1, 75, 2F, 4C, 8D, 05, D6, D0, FF, FF, 48, B8, 20, 03, 00, 00, 80, F7, FF, FF, 48, 8B, 00, 49, 33, C0, 49, B8, FF, FF, FF, FF, FF, FF, 00, 00, 49, 23, C0, 49, 0F, 44, C1, 48, 89, 05, AE, D0, FF, FF, 48, F7, D0, 48, 89, 05, AC, D0, FF, FF, E9, BB, B3, FF, FF, CC, CC, CC, B0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 20, 05, 01, 00, 10, C0, 00, 00, A0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 42, 05, 01, 00...
 
[+]

Entropy:
6.4025

Driver
Display name:
tnetfilter2

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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