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1864053335034240ac7f64.dll

Beta Rez

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module 1864053335034240ac7f64.dll by Beta Rez has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Beta Rez  (signed and verified)

MD5:
c4394a7bac701dc4a46c26ca390fa08f

SHA-1:
458ac1b35039aaf30aaa09ca4e55d5883629e3b5

SHA-256:
b3a6d1aaa92e6dd7c51a7ae519de2da565f9e79fe1955a20bc0f0f790b0a1a5d

Scanner detections:
1 / 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:
4/5/2026 2:31:34 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.25.3

File size:
192.2 KB (196,848 bytes)

File type:
Dynamic link library (Win64 DLL)

Common path:
C:\Program Files\beta rez\bin\1864053335034240ac7f64.dll

Digital Signature
Signed by:
Beta Rez

Authority:
VeriSign, Inc.

Valid from:
3/11/2015 3:00:00 AM

Valid to:
4/10/2016 2:59:59 AM

Subject:
CN=Beta Rez, O=Beta Rez, L=Santa Monica, 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:
1EFCFAF7CDCBA99CF6B0644BA639545E

File PE Metadata
Compilation timestamp:
1/11/2015 2:51:18 PM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x11748

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, 2F, 61, 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, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 66, 66, 0F, 1F, 84, 00, 00, 00, 00, 00, 48, 8B, C1, 49, 83, F8, 08, 72, 53, 0F, B6, D2, 49, B9, 01, 01, 01, 01, 01, 01, 01, 01, 49, 0F, AF, D1, 49, 83, F8, 40, 72, 1E, 48, F7, D9, 83, E1, 07, 74, 06...
 
[+]

Entropy:
6.1835

Code size:
128 KB (131,072 bytes)

Remove 1864053335034240ac7f64.dll - Powered by Reason Core Security
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