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nshelper.dll

Best Social Feed Inc.

The module nshelper.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. It is also typically executed from the user's temporary directory.
Publisher:
Best Social Feed Inc.  (signed and verified)

MD5:
49853e65ff7d6f459733ab119bb5afcb

SHA-1:
f692c45583a34e9ce98bb1053b9a9b2c5aeb84ef

SHA-256:
af1145e37bd9e821019883f0ca676567a6e13aff95aeddb02114c445e204c4ac

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:
4/25/2024 6:40:35 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.BestSocialFeed (M)
15.12.31.9

File size:
19.8 KB (20,248 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\nshelper.dll

Digital Signature
Signed by:
Best Social Feed Inc.

Authority:
VeriSign, Inc.

Valid from:
10/21/2013 8:00:00 PM

Valid to:
10/21/2016 7:59:59 PM

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:
11/6/2013 8:40:30 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
384:lWDWKOlHbRD8uAmiaUghwpbnYPLnHBreMh7q:lWDW9lHbRD8QNhwpbYhR7q

Entry address:
0x162B

Entry point:
33, C0, 40, C2, 0C, 00, 53, 56, 68, A0, 31, 00, 10, 32, DB, FF, 15, 5C, 30, 00, 10, 8B, F0, 85, F6, 74, 19, 68, 90, 31, 00, 10, 56, FF, 15, 64, 30, 00, 10, 85, C0, 74, 02, FE, C3, 56, FF, 15, 30, 30, 00, 10, 5E, 8A, C3, 5B, C3, 55, 8B, EC, 83, EC, 14, 53, 33, DB, 89, 5D, F4, 39, 5D, 0C, 75, 0C, C7, 45, F4, 57, 00, 07, 80, E9, FC, 00, 00, 00, C7, 45, F0, 00, 30, 00, 00, E8, A4, FF, FF, FF, 84, C0, 0F, 84, E0, 00, 00, 00, FF, 75, 08, 89, 5D, F8, 53, 68, 00, 04, 00, 00, E8, FF, FB, FF, FF, 83, C4, 0C, 89, 45...
 
[+]

Entropy:
6.4211

Code size:
8 KB (8,192 bytes)

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