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opticalsurf.browseradapter64.exe

Optical Surf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application opticalsurf.browseradapter64.exe by Optical Surf has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Optical Surf  (signed and verified)

MD5:
1c05e59f7af9c59ec319926af0ac2467

SHA-1:
510942b41edc34896eab547393f4a867b9a5019e

SHA-256:
d9a9b599de30efecb1186f8cefc25bbfc686433da77f348344bc4f7eaa1d3763

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:
4/8/2025 8:40:42 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.14.21

File size:
123.2 KB (126,200 bytes)

File type:
Executable application (Win64 EXE)

Common path:
C:\Program Files\optical surf\bin\opticalsurf.browseradapter64.exe

Digital Signature
Signed by:
Optical Surf

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 1:00:00 AM

Valid to:
12/18/2015 12:59:59 AM

Subject:
CN=Optical Surf, O=Optical Surf, 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:
373EFE200D490F79B1E099C7683F2A7C

File PE Metadata
Compilation timestamp:
11/4/2015 5:15:13 PM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x572C

Entry point:
48, 83, EC, 28, E8, C3, 26, 00, 00, 48, 83, C4, 28, E9, 52, FE, FF, FF, CC, CC, E9, EB, 05, 00, 00, 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, 3B, 0D, 29, 59, 01, 00, 75, 11, 48, C1, C1, 10, 66, F7, C1, FF, FF, 75, 02, F3, C3, 48, C1, C9, 10, E9, 2D, 27, 00, 00, CC, 40, 53, 48, 83, EC, 40, 48, 8B, D9, EB, 0F, 48, 8B, CB, E8, 6D, 28, 00, 00, 85, C0, 74, 13, 48, 8B, CB, E8, 95, 07, 00, 00, 48, 85, C0, 74, E7, 48, 83, C4, 40, 5B, C3, 8B, 05...
 
[+]

Code size:
79 KB (80,896 bytes)

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