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opticalsurf.expext.exe

Optical Surf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application opticalsurf.expext.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)

Version:
1.0.6242.39491

MD5:
4ad1ed8ec3d5b9b524bc56b394b5aa39

SHA-1:
99cbcd2115e1e26447b894cb10c849f49552bed8

SHA-256:
3e22dd7a79e62532bf10b93caee8736dbc45978b8a9c9fab59bb42b7d87cea67

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:
11/27/2024 4:17:27 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.12.15

File size:
99.2 KB (101,624 bytes)

Product version:
1.0.6242.39491

File type:
Executable application (Win32 EXE)

Language:
English

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

Digital Signature
Signed by:
Optical Surf

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 2:00:00 AM

Valid to:
12/18/2015 1:59:59 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:
2/14/2015 10:47:13 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x561E

Entry point:
E8, AB, 3C, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, 7D, 08, 00, 74, 2D, FF, 75, 08, 6A, 00, FF, 35, 64, 7F, 41, 00, FF, 15, 4C, 20, 41, 00, 85, C0, 75, 18, 56, E8, 2F, 08, 00, 00, 8B, F0, FF, 15, 68, 20, 41, 00, 50, E8, DF, 07, 00, 00, 59, 89, 06, 5E, 5D, C3, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 69, 33, C0, 8A, 44, 24, 08, 84, C0, 75, 16, 81, FA, 80, 00, 00, 00, 72, 0E, 83, 3D, C0, 91, 41, 00, 00, 74, 05, E9, CD, 3C, 00, 00, 57, 8B...
 
[+]

Code size:
65.5 KB (67,072 bytes)

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