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nthook64.dll

Best Social Feed Inc.

The module nthook64.dll by Best Social Feed has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This file is typically installed with the program Search Software by Best Social Feed Inc. which is a potentially unwanted software program.
Publisher:
Best Social Feed Inc.  (signed and verified)

MD5:
81c5be3526d52bd5257620280c43dfb8

SHA-1:
8b2b06fbbcb5123695b7d1b5238e6e9e6664d4a8

SHA-256:
abff7f4c39f2659973d42c80074c119907205bc073e946b4c5ec8c673c2f056e

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:
4/18/2024 8:10:37 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.BestSocialFeed (M)
16.2.4.11

File size:
51.3 KB (52,504 bytes)

File type:
Dynamic link library (Win64 DLL)

Common path:
C:\Program Files\search software\nthook64.dll

Digital Signature
Signed by:
Best Social Feed Inc.

Authority:
VeriSign, Inc.

Valid from:
10/22/2013 5:30:00 AM

Valid to:
10/22/2016 5:29:59 AM

Subject:
CN=Best Social Feed Inc., OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Best Social Feed Inc., L=Cupertino, 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:
75C790FD141329AA8211A778C6FD6844

File PE Metadata
Compilation timestamp:
11/23/2013 8:01:38 AM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
768:vHE6ukMxVoHlDN6cedUEVTfBHUznH03ikPM9hUXG7kD4KAus52JRar/YhRA:fEBnVohNKVTZHcH03iNKGki2rFbA

Entry address:
0x1C34

Entry point:
48, 89, 5C, 24, 08, 48, 89, 74, 24, 10, 57, 48, 83, EC, 20, 49, 8B, F8, 8B, DA, 48, 8B, F1, 83, FA, 01, 75, 05, E8, EB, 2A, 00, 00, 4C, 8B, C7, 8B, D3, 48, 8B, CE, 48, 8B, 5C, 24, 30, 48, 8B, 74, 24, 38, 48, 83, C4, 20, 5F, E9, A7, FE, FF, FF, CC, CC, CC, 48, 89, 4C, 24, 08, 48, 81, EC, 88, 00, 00, 00, 48, 8D, 0D, 19, A3, 00, 00, FF, 15, 53, 54, 00, 00, 48, 8B, 05, 04, A4, 00, 00, 48, 89, 44, 24, 58, 45, 33, C0, 48, 8D, 54, 24, 60, 48, 8B, 4C, 24, 58, E8, 93, 4F, 00, 00, 48, 89, 44, 24, 50, 48, 83, 7C, 24...
 
[+]

Entropy:
6.0302

Code size:
23.5 KB (24,064 bytes)

The file nthook64.dll has been discovered within the following program.

Search Software  by Best Social Feed Inc.
This is a potentially unwanted (PUP) ad-supported (adware) web browser toolbar that will modify the user's search page and provider in order to redirect web searches.
88% remove it
 
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